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De, Bellis Silva Gerson. « Projeto multicentrico em fisiologia do exercicio : etapa de calibração de cicloergometros ». [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/275169.
Texte intégralDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Educação Fisica
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Resumo: Nesse projeto multicêntrico em fisiologia do exercício - etapa de calibração de cicloergômetros foi desenvolvido um calibrador de cicloergômetros que pode ser utilizado com modelos diferentes de cicloergômetros. A partir de sua calibração estática constatou-se que o mesmo foi capaz de mensurar potencia em cicloergômetros com precisão de 0,85 W. Foi realizada a calibração dinâmica de três cicloergômetros de mesmo modelo que são utilizados pelos laboratórios de fisiologia do exercício da Faculdade de Educação Física da UNICAMP, do Departamento de Fisioterapia da UFSCar e do Departamento de Clinica Médica da USP de Ribeirão Preto. O experimento de calibração testou a resistência, estabilidade e a robustez dos cicloergômetros, além de fornecer a equação que relaciona a potencia real e a potencia indicada pelos cicloergômetros nas rotações de 45, 60 e 75 rpm. As inclinações calculadas pelas regressões foram 0.992, 0.991 and 0.977 respectivamente. Aplicaram-se testes ergoespirométricos em três voluntários nas potencias corrigidas de 60 e 120 W por 10 minutos em cada um dos laboratórios citados. Os valores de consumo de oxigênio, produção de CO2, ventilação e freqüência cardíaca foram calculados no regime permanente e suas medianas comparadas. Os resultados foram diferentes (p<0.05) para as comparações diretas, porém suas variações entre os dois níveis de esforço foram semelhantes. Os testes possibilitaram a observação de que a magnitude da variabilidade biológica dos dados fisiológicos se sobrepõe a precisão mecânica dos ergômetros utilizados nestes testes. Conclui-se que os cicloergômetros calibrados estão adequados ao propósito de um projeto multicêntrico, porém os procedimentos experimentais que envolvem a variabilidade biológica ainda necessitam de padronização para tornar possível agrupar dados coletados nos diferentes Laboratórios
Abstract: In the Multicenter Exercise Physiology Project: cycle ergometer calibration phase a multiple kind cycle ergometer calibrator was developed. The exercise physiology laboratories comprising the multicenter project were from Faculty of Physical Education- UNICAMP, Department of Physical Therapy UFSCar and Department of internal medicine- USPRP. Its static calibration gave an accuracy of 0.85 W for cycle ergometer workload readout. An experimental setup for testing stability, resistance and robustness of cycles was carried out in three identical model cycle ergometers. The dynamical calibration was executed to provide the linear regression equation between actual and indicated workloads for 45, 60 and 77 rpm. The computed regressions slopes were 0.992, 0.991 and 0.977 respectively. Ergospirometric tests with 60 and 120 W of workload were applied to three volunteers for 10 min in each laboratory. Oxygen uptake, CO2 production, ventilation and heart rate were computed for steady state and their medians tested for statistical significance (P<0.05). The results were different for direct testing of variables, although their between exercise levels variations were equal. Though, the biological variability overlaps the mechanical accuracy of ergometers. In conclusion, the calibration procedure of ergometers allows the constitution of a multicenter project but biological variability associated with the ergospirometric tests needs standardization to permit the grouping of data from different Laboratories
Mestrado
Biodinamica do Movimento Humano
Mestre em Educação Física
Borghi, Claudia <1980>. « Ruolo dell'elettrocardiogramma standard nella stratificazione prognostica della cardiomiopatia ipertrofica. Studio multicentrico ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5384/1/borghi_claudia_tesi.pdf.
Texte intégralThe purpose of this study was to investigate the prognostic significance of standard electrocardiogram (ECG) in a large cohort of patients with hypertrophic cardiomyopathy (HCM). In this multicenter study 841 HCM patients (66% men, mean age 48±17 yrs) were followed for 7.1±7.1 years and the first collected ECG was considered for the analysis. The results showed that independent predictors of sudden cardiac death were unexplained syncope (p 0.004), ST segment elevation and/or giant positive T waves (p 0.048), QRS duration >= 120 ms (p 0.017). Two models has been contructed to predict the risk of sudden death: the first based on the already well known established risk factors (wall thickness >= 30 mm, non-sustained ventricular tachycardia on ECG Holter monitoring, syncope and family history of sudden death) and the second with the addition of ST segment elevation/giant positive T waves and QRS duration >= 120 ms. Whereas both models stratified patients according to the number of risk factors, the second model showed a higher predictive power (chi-square from 12 to 22, p 0.002). In conclusion in HCM standard ECG has a prognostic value and improves the current risk stratification model.
Borghi, Claudia <1980>. « Ruolo dell'elettrocardiogramma standard nella stratificazione prognostica della cardiomiopatia ipertrofica. Studio multicentrico ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5384/.
Texte intégralThe purpose of this study was to investigate the prognostic significance of standard electrocardiogram (ECG) in a large cohort of patients with hypertrophic cardiomyopathy (HCM). In this multicenter study 841 HCM patients (66% men, mean age 48±17 yrs) were followed for 7.1±7.1 years and the first collected ECG was considered for the analysis. The results showed that independent predictors of sudden cardiac death were unexplained syncope (p 0.004), ST segment elevation and/or giant positive T waves (p 0.048), QRS duration >= 120 ms (p 0.017). Two models has been contructed to predict the risk of sudden death: the first based on the already well known established risk factors (wall thickness >= 30 mm, non-sustained ventricular tachycardia on ECG Holter monitoring, syncope and family history of sudden death) and the second with the addition of ST segment elevation/giant positive T waves and QRS duration >= 120 ms. Whereas both models stratified patients according to the number of risk factors, the second model showed a higher predictive power (chi-square from 12 to 22, p 0.002). In conclusion in HCM standard ECG has a prognostic value and improves the current risk stratification model.
ALLONI, MARTA. « Studio multicentrico di valutazione multiparametrica cardiovascolare ultrasonografica nella predizione della coronaropatia ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2013. http://hdl.handle.net/10281/45258.
Texte intégralBorsato, Emerson Paulo. « Modelo multicentrico para elaboraçăo, coleta e pesquisa de dados em protocolos eletrônicos / ». oai:ufpr.br:217897, 2005. http://200.17.209.5:8000/cgi-bin/gw_42_13/chameleon.42.13a?host=localhost%201111%20DEFAULT&sessionid=VTLS&function=CARDSCR&search=KEYWORD&pos=1&u1=12101&t1=217897.
Texte intégralCo-orientador: Jorge Eduardo Fouto Matias
Inclui apendices
Tese (doutorado) - Universidade Federal do Paraná, Setor de Cięncias da Saúde, Programa de Pós-Graduaçăo em Clínica Cirúrgica. Defesa: Curitiba, 2005
Inclui bibliografia
Zanardi, Francesca <1979>. « Studio caso-controllo multicentrico su distacco di retina e movimentazione manuale di carichi ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5728/1/zanardi_francesca_tesi.pdf.
Texte intégralBackground/Objectives To investigate the hypothesis that repeated lifting tasks could be a risk factor for retinal detachment. Methods Case-control study (case definition: surgically treated retinal detachment. Cases were identified among patients operated for retinal detachment in two large urban hospital in Bologna and Brescia. Controls were drawn from outpatients attending an eye clinic in the same catchment area. 104 cases and 173 controls (blind to the study hypothesis) responded to a structured questionnaire regarding individual, pathological and work-related factors possibly related to retinal detachment, including past/present occupational lifting tasks. Three lifting categories were defined based on the median “cumulative lifting index” (product of load, manoeuvres/hour and lifting-years) among manual workers: no lifting (reference category); light lifting; heavy lifting. Odds ratios for retinal detachment associated with “heavy”, “moderate” or “light” occupational lifting in an unconditional logistic regression model (adjusted for age and sex) were obtained. Results In addition to ocular surgery and myopia (known risk factors), an independent associations were recorded for heavy lifting (odds ratio 3.6, 95% confidence interval, 1.5 to 9.0). Likelihood ratio tests did not reveal interactions between heavy lifting, ocular/cataract surgery and myopia. Conclusions The results support the plausible hypothesis that heavy occupational lifting (involving Valsalva’s manoeuvre) may be a relevant risk factor for retinal detachment. Moreover these preliminary results confirmed, as reported in literature, an increased risk of retinal detachment for myopic subjects and for those who have undergone cataract surgery. Our observations emphasize the importance of prevention especially in subjects involved in the manual handling of loads, particularly if short-sighted.
Zanardi, Francesca <1979>. « Studio caso-controllo multicentrico su distacco di retina e movimentazione manuale di carichi ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5728/.
Texte intégralBackground/Objectives To investigate the hypothesis that repeated lifting tasks could be a risk factor for retinal detachment. Methods Case-control study (case definition: surgically treated retinal detachment. Cases were identified among patients operated for retinal detachment in two large urban hospital in Bologna and Brescia. Controls were drawn from outpatients attending an eye clinic in the same catchment area. 104 cases and 173 controls (blind to the study hypothesis) responded to a structured questionnaire regarding individual, pathological and work-related factors possibly related to retinal detachment, including past/present occupational lifting tasks. Three lifting categories were defined based on the median “cumulative lifting index” (product of load, manoeuvres/hour and lifting-years) among manual workers: no lifting (reference category); light lifting; heavy lifting. Odds ratios for retinal detachment associated with “heavy”, “moderate” or “light” occupational lifting in an unconditional logistic regression model (adjusted for age and sex) were obtained. Results In addition to ocular surgery and myopia (known risk factors), an independent associations were recorded for heavy lifting (odds ratio 3.6, 95% confidence interval, 1.5 to 9.0). Likelihood ratio tests did not reveal interactions between heavy lifting, ocular/cataract surgery and myopia. Conclusions The results support the plausible hypothesis that heavy occupational lifting (involving Valsalva’s manoeuvre) may be a relevant risk factor for retinal detachment. Moreover these preliminary results confirmed, as reported in literature, an increased risk of retinal detachment for myopic subjects and for those who have undergone cataract surgery. Our observations emphasize the importance of prevention especially in subjects involved in the manual handling of loads, particularly if short-sighted.
Tiani, Carolina <1981>. « Dati preliminari dello studio multicentrico caso-controllo "Grave danno epatico acuto indotto da farmaci" ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6387/1/tiani_carolina_tesi__.pdf.
Texte intégralDrug-induced liver injury (DILI) is a term that describes abnormalities in liver function tests related to medication intake. Acetaminophen is the most common cause of DILI followed by antibiotics, NSAIDs, and antitubercular medications. NSAIDs represent one of the most widely used classes of drugs. Numerous case reports have described patients who develop fatal liver injury while taking NSAIDs. Several NSAIDs were withdrawn from the market because of hepatic ADRs. The latest warning signal for hepatotoxicity induced by a NSAID is related to nimesulide. In some European countries, Finland, Spain, and Ireland, nimesulide was suspended from the market because of an associated high frequency of hepatotoxicity. In contrast, a recent referral of the EMEA concluded that the benefits of the drug outweigh its risks. However, the full extent of the risk of nimesulide-induced liver injury is still a much debated issue within the EMEA. Primary objectives was to estimate the relative risk of liver injury induced by drugs with a prevalence of use in the Italian population > or = 6% This study is designed as a multicenter case–control study where cases and controls will all be recruited among patients seen in a hospital context in various parts of Italy. Information regarding demographic data, medical history, coexisting illnesses, lifestyles and dietary habits, alcohol, tobacco and coffee intake, use of herbal products, and drug use (including doses taken and indication for use on each day of exposure) will be collected directly from all patients through a structured interview. Preliminary results of this study confirm a significant relative risk (Odds Ratio) of liver injury associated with the use of nimesulide, NSAIDs, some antibiotics like macrolides and paracetamol. The results of this study could strongly affect regulatory decisions within the National Health Service.
Tiani, Carolina <1981>. « Dati preliminari dello studio multicentrico caso-controllo "Grave danno epatico acuto indotto da farmaci" ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6387/.
Texte intégralDrug-induced liver injury (DILI) is a term that describes abnormalities in liver function tests related to medication intake. Acetaminophen is the most common cause of DILI followed by antibiotics, NSAIDs, and antitubercular medications. NSAIDs represent one of the most widely used classes of drugs. Numerous case reports have described patients who develop fatal liver injury while taking NSAIDs. Several NSAIDs were withdrawn from the market because of hepatic ADRs. The latest warning signal for hepatotoxicity induced by a NSAID is related to nimesulide. In some European countries, Finland, Spain, and Ireland, nimesulide was suspended from the market because of an associated high frequency of hepatotoxicity. In contrast, a recent referral of the EMEA concluded that the benefits of the drug outweigh its risks. However, the full extent of the risk of nimesulide-induced liver injury is still a much debated issue within the EMEA. Primary objectives was to estimate the relative risk of liver injury induced by drugs with a prevalence of use in the Italian population > or = 6% This study is designed as a multicenter case–control study where cases and controls will all be recruited among patients seen in a hospital context in various parts of Italy. Information regarding demographic data, medical history, coexisting illnesses, lifestyles and dietary habits, alcohol, tobacco and coffee intake, use of herbal products, and drug use (including doses taken and indication for use on each day of exposure) will be collected directly from all patients through a structured interview. Preliminary results of this study confirm a significant relative risk (Odds Ratio) of liver injury associated with the use of nimesulide, NSAIDs, some antibiotics like macrolides and paracetamol. The results of this study could strongly affect regulatory decisions within the National Health Service.
Cosendey, Marly Aparecida Elias. « Analise da implantacao do programa farmacia basica : um estudo multicentrico em cinco estados do Brasil ». Rio de Janeiro : [s.n.], 2000. http://teses.cict.fiocruz.br/pdf/cosendeymaed.pdf.
Texte intégralMAKIL, ELHASSAN. « Progetto Multicentrico Italiano Sonno e Scompenso (ProMISeS-II) : “Disturbi Respiratori Nel Sonno e Scompenso Cardiaco” ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2019. http://hdl.handle.net/10281/241151.
Texte intégralBackground: sleep related breathing disorders (SRBD) are highly prevalent among congestive heart failure (CHF) patients, as indicated by the previously published ProMISeS-I study. Despite the well-known prognostic significance of SRBD in CHF patients, only few studies have performed a detailed characterization of different types of SRBD among these subjects. Aim: The aims of the present analysis, conducted in a large population of CHF patients were: 1) To explore the characteristics and prevalence of different SRBD, 2) To explore possible associations between SRBD (Outcome) and demografic, clinical characteristics (predictors). Materials and methods: A total of 830 CHF patients were consecutively enrolled in the frame of the multicentric ProMISeS-II project between february 2014 and february 2017. In all participants demographic and echocardiographic data were available for analyses. Cardio-respiratory polysomnography was performed and its results interpreted according to 2007 AASM recommendations. According to ventilatory patterns and considering an AHI ≥5 events/hour, subjects were classified into 5 different categories: 1) Prevalent Obstructive Sleep Apnea (pOSA OAHI/AHI > 0.5); 2) Prevalent Central Sleep Apnea (pCSA, CAHI/AHI > 0.5); 3) Prevalent hypopnea (pHY, HY/AHI > 0.5), 4) Mixed ventilatory pattern (pMIX) without a neat prevalence of any of the former patterns; and 5) Absence of ventilatory alterations during sleep (No SRBD, AHI < 5). The association between SRBD and their potential predictors was explored by means of generalized linear models (GLM). Results: The final cohort of the study consisted of 656 CHF patients, mostly men (n=578, 88%), mean age 65 ±11 years, median BMI 27.8 (25.2-31.1 IQR). Main identifiable causes of CHF were ischemic (56%), idiopatic (26%), other causes (11%), hypertensive (4%), and valvular (4%). An EF <40% was present in 81% of patients and atrial fibrillation was present in about 25%. The Median AHI was 21 [6 – 37.6 IQR] and the global prevalence of SRBD was 78%. Prevalence (RP) was also estimated for specific SRBDs: i) pOSA (14% n 93), ii) pCSA (23% n 153), iii) pHY (28% n 186) and v) pMIX (12% n 77). Of note, the relative prevalence of pHI (PR 1.59, 95%IC 1.17-2.17) and pCSA (PR 2.28, 95%IC 1.44-3.63) was significantly higher in men compared to women. No gender-related differences in the prevalence of pOSA nor in pMIX, were observed. In linear generalized models age was directly associated with the prevalence of all types SRBD but pOSA. In particular, each year increase in age was associated with a variable increase in the prevalence of SRBD ranging from 1% for pHI to 4% for pMIX. An unexpected result of our study regards the association of sedentarism (prevalence of 50% in our study population) with SRBDs. Compared to non-sedentary subjects, a lower relative prevalence of SRBDs was observed among sedentary subjects being 0.70 (95% IC 0.58-0.84) for pHI, 0.22 (95%IC 0.12-0.39) for pMIX, and 0.52 (95%IC 0.41-0.67) for pCSA. When evaluating the relationship between body weight and SRBDs, each unit increase in BMI was associated with a variable increase in the prevalence of SRBDs (ranging from 1% for pCSA to 4% for pMIX). Finally, the prevalence of pMIX (RP 1.37, 95%IC 1.06-1.78) and pCSA (RP 1.38, 95%IC 1.14-1.68) was significantly higher among patients with atrial fibrillation, and the prevalence of pCSA was higher (RP 1.41, 95% CI 1.09-1.82) among patients with an EF < 40%. Conclusions: the present analysis (ProMISeS-II study), conducted in a higher number of subjects (n=656) compared to the first report of the ProMISeS-I study (n=370), comfirms the extremely high prevalence of SRBD among CHF patients. In the present report SRBDs have been better characterized by identifying not only classical phenotypes such as pCSA e pOSA, but also assessing two additional categories namely pHI and mixed ventilatory patterns.
Balducci, Anna <1978>. « Effetto dell’allenamento fisico sulla capacità cardiopolmonare in pazienti adulti con ventricolo destro sistemico : studio europeo multicentrico ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3868/1/Balducci_Anna_tesi.pdf.
Texte intégralBalducci, Anna <1978>. « Effetto dell’allenamento fisico sulla capacità cardiopolmonare in pazienti adulti con ventricolo destro sistemico : studio europeo multicentrico ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3868/.
Texte intégralSalsi, Ginevra <1986>. « Ruolo della risonanza magnetica prenatale in feti con ventricolomegalia isolata nell'era della neurosonografia : uno studio multicentrico ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9618/1/Tesi%20dottorato%20Ginevra%2020_10%20con%20abstract%20e%20frontespizio%20giusto.pdf.
Texte intégralObjectives: To assess the role of fetal magnetic resonance imaging (MRI) in detecting associated anomalies in fetuses presenting with mild and moderate isolated ventriculomegaly (VM) undergoing multiplanar ultrasound (US) evaluation of fetal brain. Methods: Multicenter, retrospective, cohort study involving 15 referral fetal medicine centers in Italy, United Kingdom, and Spain. Inclusion criteria: fetuses affected by isolated VM on US, undergoing detailed assessment of fetal brain via a multiplanar approach. Primary outcome: to report the rate of additional CNS anomalies detected exclusively at prenatal MRI and missed at US; secondary aim: to estimate the incidence of additional anomalies detected exclusively after birth and missed at prenatal imaging. Results: 556 fetuses with a prenatal diagnosis of isolated fetal VM on US were included. Additional structural anomalies were detected at prenatal MRI and missed at US in 5.4% (95% CI 3.8-7.6) of cases. Fetuses with an associated anomaly detected only at MRI were more likely to have moderate compared to mild VM (60.0% vs 17.7%, p<0.001), while there was no significant difference between the proportion of cases with bilateral VM between the two groups (p=0.2). The results of the logistic regression analysis showed that maternal body mass index (OR: 0.85, 95% CI 0.7-0.99, p= 0.030), presence of moderate VM (OR: 5.8, 95% CI 2.6-13.4, p<0.001) and gestational age at MRI ≥24 weeks of gestation (OR: 4.1, 95% CI 1.1-15.3, p= 0.038) were independently associated with the probability of detecting associated anomalies at MRI. Associated anomalies were detected exclusively at birth and missed at prenatal imaging in 3.8% of cases. Conclusions: The rate of associated fetal anomalies missed at US and detected only at fetal MRI in fetuses with isolated mild and moderate VM undergoing neurosonography is lower than that previously reported. The large majority of these anomalies are difficult to detect on ultrasound
FUMAGALLI, SIMONA. « STUDIO OSSERVAZIONALE MULTICENTRICO SUL RICORSO ALLE PROCEDURE DI VALUTAZIONE DEL RISCHIO E/O DI DIAGNOSI PRENATALE ». Doctoral thesis, Università degli Studi di Milano, 2012. http://hdl.handle.net/2434/202944.
Texte intégralVALENTE, ALESSIA. « Multicentre translational Trial of Remote Ischaemic Conditioning in acute ischaemic Stroke (TRICS) ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2023. https://hdl.handle.net/10281/403045.
Texte intégralIn view of fostering transferability of pre-clinical data on the efficacy of remote ischemic conditioning (RIC) in acute ischemic stroke, we designed two multi-centre translational trials in mice and rats of both sexes. We defined to model ischaemic stroke by the transient occlusion of the middle cerebral artery (tMCAo). The improvement of sensorimotor deficits at 48h after tMCAo in RIC-treated animals was defined as the primary outcome. This work presents the harmonization phase relative to the evaluation of sensorimotor deficits by De Simoni neuroscore. Each centre performed different tMCAo durations - 30, 45, 60 min - allowing sufficient variability in the outcome. Animals were monitored post-surgery according to the ARRIVE and IMPROVE guidelines and data was registered into an electronic case report form on RedCap. All animals were video recorded during the neuroscore and the videos (n=11 per species) were distributed and evaluated blindly by raters at all centres. The interrater agreement of neuroscore was described using intraclass correlation coefficient (ICC), ranging between ICC=0 (equivalent to chance) and ICC=1 (perfect agreement), setting a target of ICC≥0.60 as satisfactory. We obtained moderate agreement for mice (ICC=0.50 [0.22-0.77]) and rats (ICC=0.49 [0.21-0.77]). Errors were identified in animal handling and test execution. We thus performed a second training followed by a new blind evaluation replacing the videos with poor experimental execution. The interrater agreement improved for mice (ICC=0.64 [0.37-0.85]) and rats (ICC=0.69 [0.44-0.88]). In conclusion, two dedicated training on the neuroscore allowed us to reach the agreement target for both species and thus next proceed with the interventional phase of the project.
Pereira, Francis Solange Vieira Tourinho. « Estudo multicentrico da prescrição de antagonistas de receptores H2 da histamina e de inibidores da bomba de protons ». [s.n.], 2000. http://repositorio.unicamp.br/jspui/handle/REPOSIP/309531.
Texte intégralDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
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Resumo: Os antagonistas de receptores H2 da histarnina (AH2) e os inibidores da bomba de prótons (IBP) são efetivos no tratamento de condições clinicas que se acompanham de hipersecreção ácida gástrica, sendo amplamente utilizados na prevenção de dano gastroduodenal por fármacos antiinflamatórios e de úlcera de estresse. É muito freqüente o uso destes fármacos em contexto hospitalar. Um estudo transversal determinou a prevalência de prescrição de AH2 e de IBP em três hospitais de atenção terciária, gerais: um universitário e dois filantrópicos. Foram incluídos todos os pacientes internados e com prescrição destes dia do estudo. Foram excluídos do estudo os pacientes da pediatria e da tocoginecologia. Ao prescrito r foi dirigida uma pergunta aberta sobre o motivo da prescrição. No dia do estudo 229 pacientes estavam recebendo AH2 ou IBP, o que representa 54,8% do total de pacientes internados. Dentre os pacientes do estudo 55,5% eram do sexo masculino, 28,8% tinham idade :2: 65 anos. Os principais diagnósticos dos pacientes do estudo foram: neoplasias (22,5%), doenças cardiovasculares (13,9%), envenenamentos e outras causas externas (9,7%), doenças gastrintestinais (10,6%). A ranitidina foi o fármaco antissecretor mais prescrito (200 pacientes, 87,3%). Pacientes com idade :2: 65 anos receberam significativamente mais prescrições de fármacos antissecretores, e não se observou ajuste da dose destes fármacos para pacientes deste estrato etário. Os prescritores de 121 pacientes (52,9%) deram as seguintes justificativas para as prescrições de AH2 ou IBP: profilaxia de úlcera de estresse (28,0%), uso concomitante de antiinflamatórios esteróídes (24,8%), uso concomitante de antiinflamatórios não esteroidais (15,7%), tratamento de doenças gastrintestinais (14,0%). Algumas indicações profiláticas encontradas não correspondem às recomendadas na literatura. Intervenções educativas parecem necessárias para promover o uso racional destes medicamentos
Abstract: A cross sectional study was conducted in three general hospitaIs in state of São Paulo, Brazil: one teaching hospital and two private non profit hospitaIs. In 1999, age, gender, the diagnosis, concomitant use of NSAIDs or corticosteroids and the prescription of all patients on histamine 2 receptor antagonists and proton pump inhibitors on the study day were recorded. The indications, as well as the type, dose of these drugs were investigated. The prescribers were asked about the reasons for prescribing these medications. The aim of this study was to evaluate the prescription patterns and evaluates the appropriateness of H2 blockers and proton pump inhibitors. Among the 418 patients evaluated 229 ( 54.8%) received H2 blockers and proton pump inhibitors prescriptions. Among these 229 patients, 55.5% were male and 28.8% were 2: 65 years old. The most common diagnoses were: neoplasms (22.5%); diseases of the circulatory system (13.6%); injury, poisoning and certain other consequences of external causes (9.7%); diseases of the digestive system (10.6%). Ranitidine was the most prescribed drug (83.7%). None of the prescribers refused to give the reason for the prescription, put only in 52.9% of the patients the prescribers were found for interview. The most common justifications were stress ulcer prophylaxis (28.1%); concomitant use ofcorticosteroids (24.8%); concomitant use ofNSAIDs (15.7%); treatment of gastrointestinal diseases (14.0%). Some ofthe prophylactic indications did not agree with current guidelines. Educative interventions seem to be necessary to promote rational use of these drugs
Mestrado
Mestre em Farmacologia
Conte, Carmina <1975>. « Studio multicentrico sulla prevalenza e sulle principali caratteristiche cliniche e biochimiche nei pazienti in dialisi paratiroidectomizzati in italia ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6572/1/Conte_C-dottorato.pdf.
Texte intégralCAVE PTX study aims to evaluate, in dialysis patients submitted to PTX, the control and therapies of divalent ions (phase I), and the prevalence of aortic calcifications and vertebral fractures (phase II). We report here the phase I results. Biochemistries and therapies of PTX patients were collected by means of an electronic data sheet from 149 Italian dialysis Units. A control group (C), comparable for age, sex and dialysis duration, was selected from the whole cohort. From a total of 12515 patients (HD = 87.7%;PD = 12.3%), 528(4.22%) had received PTX. Prevalence of PTX was definitely higher in HD(4.5%) compared to PD(1.9%). Respectively in PTX and C, PTH was low(<150) in 64 vs 23%; optimal (150-300) in 17 vs 39%; and high(>300) in 19 vs 38%. Ca, P and PTH values in the three K/DOQI PTH range groups are in table 2. Prescribed drugs, respectively in PTX and C, were: Vitamin D (61 vs 64%); Phosphate binders (88 vs 75%) and Calcimimetic (13 and 35%). Notably, Calcitriol and Ca based binders in PTX, and Paricalcitol and Sevelamer in C, were the most frequently prescribed drugs. PTX has a low prevalence in Italy, and mainly involves relatively young, females and long-term haemodialysis patients. In these patients PTH values are mostly low and therapeutic choices are accordingly different. Different hard outcomes can be hypothesized
Conte, Carmina <1975>. « Studio multicentrico sulla prevalenza e sulle principali caratteristiche cliniche e biochimiche nei pazienti in dialisi paratiroidectomizzati in italia ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6572/.
Texte intégralCAVE PTX study aims to evaluate, in dialysis patients submitted to PTX, the control and therapies of divalent ions (phase I), and the prevalence of aortic calcifications and vertebral fractures (phase II). We report here the phase I results. Biochemistries and therapies of PTX patients were collected by means of an electronic data sheet from 149 Italian dialysis Units. A control group (C), comparable for age, sex and dialysis duration, was selected from the whole cohort. From a total of 12515 patients (HD = 87.7%;PD = 12.3%), 528(4.22%) had received PTX. Prevalence of PTX was definitely higher in HD(4.5%) compared to PD(1.9%). Respectively in PTX and C, PTH was low(<150) in 64 vs 23%; optimal (150-300) in 17 vs 39%; and high(>300) in 19 vs 38%. Ca, P and PTH values in the three K/DOQI PTH range groups are in table 2. Prescribed drugs, respectively in PTX and C, were: Vitamin D (61 vs 64%); Phosphate binders (88 vs 75%) and Calcimimetic (13 and 35%). Notably, Calcitriol and Ca based binders in PTX, and Paricalcitol and Sevelamer in C, were the most frequently prescribed drugs. PTX has a low prevalence in Italy, and mainly involves relatively young, females and long-term haemodialysis patients. In these patients PTH values are mostly low and therapeutic choices are accordingly different. Different hard outcomes can be hypothesized
Soares, Karla Vanessa Souza. « Sintomas depressivos em adolescentes e adultos jovens : analise dos dados do "Estudo multicentrico de morbidade psiquiatrica em areas metropolitanas" ». [s.n.], 1993. http://repositorio.unicamp.br/jspui/handle/REPOSIP/311438.
Texte intégralDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
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Resumo: INTRODUÇÃO: Estudos epidemiológicos realizados nas últimas duas décadas sobre depressão na adolescência demonstram prevalências variando de 15 a 50% para sintomatologia depressiva, além de uma elevada comorbidade com ideação suicida e abuso de álcool e outras drogas. Esses sintomas aparecem com maior frequência entre os adolescentes mais velhos e do gênero feminino. OBJETIVOS: I. Determinar a frequência de sintomatologia depressiva entre os adolescentes e adultos jovens de três centros urbanos brasileiros II. avaliar a associação desses sintomas com as variáveis sóciodemográficas; III. comparar os adolescentes (15 a 19 anos), adultos jovens (20 a 24 anos) e adultos (25 a 49 anos), quanto à presença de sintomatologia depressiva. METODOLOGIA: A presente investigação faz uma análise de parte dos dados coletados na primeira fase de um estudo tipo corte transversal, conduzido em duas etapas, realizado para avaliar a prevalência de distúrbios - psiquiátricos em três centros urbanos brasileiros ( São Paulo, Brasília e Porto Alegre). Na primeira etapa foi realizado um rastreamento através do "Questionário de Morbidade Psiquiátrica do Adulto - QMPA", em todos os indivíduos dos domicílios sorteados, com idade superior a 15 anos. Neste estudo utilizaram-se nove perguntas do QMPA para avaliar a frequência de sintomas depressivos nas faixas etárias de 15 a 19 e de 20 a 24 anos. Posteriormente realizou-se uma estratificação dos sintomas por variáveis sóciodemográficas e uma comparação desses grupos etários com os adultos (25 a 49 anos), quanto à presença de sintomatologia depressiva. Esses dados foram sempre analisados separadamente para cada uma das cidades. RESULTADOS: Nas três cidades, os sintomas depressivos registrados com maior freqüência entre os adolescentes eadultos jovens foram: falta de apetite (6 a 14%), insônia (6 a 11%), desânimo (11 a 23%) e irritabilidade (7 a 15%). Ideação suicida aparece com uma frequência de 3a4% entre os adolescentes e de 2 a 7% entre os adultos jovens. Observou-se ainda, um gradiente de frequência para os sintomas uso de tranquilizantes e preocupação com doenças, com os menores percentuais entre os adolescentes. Sintomatologia depressiva esteve nitidamente associada com os individuos do gênero feminino, solteiros e que moravam em residências com até quatro pessoas. Na comparação realizada entre os grupos etários quanto a frequência de sintomatologia depressiva, nota-se uma associação positiva entre a fáixa etária mais velha e sintomas depressivos, bem como um padrão de sintomatologia semelhante para os adolescentes e adultos jovens. o estudo sugere que sintomatologia depressiva é um significativo problema de saúde entre os adolescentes. Novas investigações são necessárias para avaliar os fatores de roteção e risco, assim como conhecer dados sobre incidência, duração e desfecho clinico dos sintomas depressivos nessa população
Abstract: DEPRESSIVE SYMPTOMS AMONG ADOLESCENTS AND YOUNG ADULTS: Data analysis of the "Multicentric Study of Psychiatric Morbidity in Metropolitan Areas". INTRODUCTION: Epidemiologic studies conducted in the last two decades on adolescent depression have demonstrated a high frequency of depressive symptomatology (15-50%) and a high comorbidity with suicide ideation and drug abuse. These symptoms are ssociated with old adolescence and females. OBJECTIVES: The aims of this study are: I. to determine the frequency of depressive symptoms in adolescents and young adults of three urban areas in Brazil; II. to verify the association of these symptoms with sociodemographic variables; III.to compare the frequency of depressi ve symptoms among adolescents (15-19 years old), young adults (20-24 years old) and adults (25-49 years old). METBOD: A two-stage cross-sectional design was used to assess prevalence of psychiatric disorders' in three urban areàs in Brazil(São Paulo, Brasilia and Porto Alegre). AlI adult residents in the households selected were asked to fill up a Brazilian screening questionnaire for psychiatric disorders, the "Questionnaire for Adult Psychiatric Morbidity" (QMPA) .This instrument includes nine questions on depressive symptoms. After selecting the population aged between 15-19 years old and 20-24 years old, the frequencies of depressive symptomatology was obtained. Astratification based on sociodemographic variables was then carried out. A comparison of the depressive symptomatology between the three groups (adolescents, young adults and adults), was made. Data from the three cities were analysed separately. RESULTS: For the three cities, the most frequent depressive symptoms among adolescents and young adul ts were: lack of appetite (6-14%) , insomnia (6-11%) , apathy (11-23%) and Irritability (7-15%) . suicidal ideation presented alow frequency among the adolescents (3-4%) and young adults (2-7%). A frequency gradient was observed for the use of tranquillizers and hypochondria. The depressive symptomatology was clearly associated with female, being single and living in houses where less than five people. The comparison of age groups showed a positive association between adult age and depressive symptomatology as well as a similar pattern of symptomatology for adolescents and young adults. The study indicates that depressive symptomatology in adolescents is an important public health problem. Further studies are needed in order to assess the risk and protective factors related with the incidence, duration and outcome of depression in this age group
Mestrado
Mestre em Saude Mental
DASSO, NICOLETTA. « L’esperienza di ricovero dei caregivers familiari in ambito pediatrico e le relazioni con l’assistenza infermieristica : uno studio osservazionale multicentrico ». Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1046204.
Texte intégralENGLISH ABSTRACT Background: patients’ satisfaction for nursing care in the healthcare is an aspect that has become increasingly important over the years, not only for the nursing -as it is counted among nursing sensitive outcomes- but also at in economic and political issues. In Pediatrics, the philosophy most embraced in the Western world is Family Centered Care, which envisages the centrality of the child and his or her family unit in the entire care process. Few studies have evaluated the relationships between the experience of family caregivers regarding the care received and the organizational aspects of nursing care. Objectives: To examine the experience of family caregivers in relation to the hospitalization they have lived with their child and evaluate the relationship with the nursing care received and the care setting Methods: Cross-sectional study; multi-level data (administrative, nurses and caregivers) through convenience sampling. Participation has always been preceded by acceptance to participate in the study following the reading of the informed consent. For these analyses a sub-sample comparable with the studies in the literature was extrapolated. Nine hospitals affiliated with the Italian Pediatric Hospitals Association, located in different Italian regions, were involved in the data collection at the caregivers level. The data were collected through a web survey, at the nurse level, and through the Child HCAHPS, specially adapted and validated for the Italian context (S-CVI 0.91; ICC 0.90; Cronbach's Alpha 0.90). The data were analysed at the unit level through descriptive statistical analysis, to describe the sample and the variables of interest with central trend indices, frequencies and percentages; then, a linear regression model has been built to study the relationships between caregivers’ outcomes and the nursing (workload) and setting (pediatric hospital vs general hospital) variables. Data from to the caregivers’ survey, the Top Box approach was applied as indicated in the literature: each item was recoded as an indicator variable of whether respondents selected the most positive response option (eg "Yes, absolutely", “Always, or “rate 9-10”). All analyses were conducted using IBM SPSS statistical software, version 22. Results: Ninety-six units, 1472 nurses and 635 caregivers were involved in the study. The areas in which the highest percentage values were achieved were those relating to pain and communication with doctors and nurses. The lowest values, on were related to safety, preparation for discharge and comfort. Overall, the responses given by caregivers in pediatric hospitals were better than those reported by caregivers in general hospitals. The linear regression model showed that increasing the workload score by one point decreases the hospital's overall rating by 2.12 points; adding the type of hospital to the model, it was found that being in a pediatric hospital increases the hospital's overall rating by 0.28 points. Conclusions: this is the first study conducted in Europe that investigates the experience of caregivers in the Pediatrics through the gold standard tool for evaluating Family Centered Care, and is also the first to relate these outcomes with the characteristics of the nursing staff. These data confirm once again how nursing care can influence the hospitalization experience by impacting on the quality and care provided. In addition, these data can be very useful in identifying improvements to make pediatric nursing care increasingly family-centered and effective.
Salvan, Elisa. « L'efficacia del trattamento in rapporto al rischio nella sindrome da antifosfolipidi in corso di gravidanza. Studio retrospettivo multicentrico europeo ». Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3422649.
Texte intégralBackground. Il trattamento ottimale della Sindrome da Antifosfolipidi (APS) ostetrica è attualmente sconosciuto. La terapia con aspirina a basso dosaggio (LDA) da sola o associata all’eparina rappresenta il trattamento convenzionale per l’APS ostetrica. Nonostante questo trattamento, circa il 20% delle gravidanze hanno esito sfavorevole. Recentemente abbiamo individuato alcuni fattori di rischio aggiuntivi di perdita gravidica in corso di gravidanza trattata con terapie convenzionali. Scopo della Tesi. Confrontare gli outcomes di gravidanza ottenuti a seguito dei diversi trattamenti e definire dei precisi profili di rischio al fine di analizzare l’efficacia della terapia sulla base della stratificazione del rischio. Materiali e Metodi. E’ stato condotto uno studio europeo di tipo retrospettivo e multicentrico. Sono stati raccolti i dati basali e quelli in corso di gravidanza di donne affette da APS, diagnosticata sulla base dei Criteri di Sydney, che presentavano almeno uno dei seguenti tre fattori di rischio aggiuntivi: associazione con il Lupus Eritematoso Sistemico (LES), triplice positività per Antifosfolipidi (aPL) e pregressa trombosi. Sono state prese in considerazione le pazienti trattate con le seguenti terapie: LDA, eparina a dose profilattica ± LDA, eparina a dose terapeutica ± LDA, protocolli di II livello (plasmaferesi/immunoassorbimento e/o immunoglobuline endovena) e nessuna terapia. Le determinazioni degli anticardiolipina e anti-Beta2 Glicoproteina I sono state eseguite presso i singoli Centri con il metodo ELISA seguendo procedure diverse sia “home-made” che commerciali, mentre il Lupus Anticoagulant è stato testato con una serie di metodi emocoagulativi in accordo con la corrente letteratura. I metodi statistici utilizzati sono stati l’analisi univariata e la regressione logistica. Risultati. Il numero di gravidanze considerate nello studio è stato complessivamente 202, relative a 158 pazienti. L’età media delle donne al momento della gravidanza era 32,5 anni ± 4,6 DS (range: 20-44) con una durata media di malattia di 5,2 anni ± 4,5 (range: 0-22). L’esito favorevole è stato osservato in 149 gravidanze (73,8%), che si sono concluse con la nascita di 150 neonati (un parto gemellare), di cui 78 (52%) maschi e 72 femmine (48%), nati mediamente alla 36,2^ SG ± 3 DS, con un Apgar medio a 5 minuti di 9,1 ± 1,3 DS e un peso in percentili di 55,8 ± 24,9 DS. Ci sono state 53 perdite (26,2%). In assenza della considerazione del rischio non si sono osservate differenze significative nelle prevalenze dei nati vivi tra le donne che assumevano le diverse tipologie di trattamento prese in considerazione. L’outcome primario è stato analizzato in relazione ai 7 profili di rischio definiti sulla base delle combinazioni di: pregressa trombosi, LES e triplice positività aPL. Accorpando i trattamenti convenzionali, l’unico profilo su cui è stata rilevata una differenza statisticamente significativa è stato quello caratterizzato dai fattori “triplice positività aPL + pregressa trombosi”, dove si è osservata una prevalenza di bambini nati vivi pari al 92,9% nei trattamenti di II livello versus il 58,3% nei trattamenti convenzionali (Fisher test, p-value < 0,05 e OR 9,3; 95% CI:1,3 - 65,6). Questi risultati sono stati confermati dall’analisi di regressione logistica che ha fornito una stima dell’odds ratio aggiustata per le variabili confondenti (OR 9,6; 95% CI: 1,1-84,3). Discussione. Da questo studio è emerso un sottogruppo di donne caratterizzato dalla presenza di “triplice positività aPL + pregressa trombosi”, dove la terapia di II livello è risultata più efficace per numero di nati vivi rispetto al trattamento convenzionale. In particolare si è messa in evidenza l’importanza dell’uso del trattamento di II livello nell’APS ostetrica. Possiamo concludere che la terapia dell’APS ostetrica andrebbe differenziata sulla base del rischio. In particolare, nelle donne con “triplice positività aPL + pregressa trombosi” il trattamento di elezione potrebbe essere quello di II livello associato alla terapia convenzionale.
MARGONI, MONICA. « Quantificazione del danno microstrutturale nella sclerosi multipla attraverso il rapporto delle sequenze pesate in T1 e T2 : uno studio multicentrico ». Doctoral thesis, Università degli studi di Padova, 2022. http://hdl.handle.net/11577/3450308.
Texte intégralBackground. The T1-weighted (w)/T2w-ratio has been proposed as a clinically feasible method to investigate white matter (WM) and gray matter (GM) integrity in multiple sclerosis (MS). However, its clinical relevance and suitability in a multicenter setting still need to be fully explored. Objective. To evaluate WM and GM T1w/T2w-ratio in a large multicenter cohort of healthy controls (HC) and MS patients, and its association with clinical disability. Methods. Brain T2w and T1w scans were identified retrospectively at 7 European sites from 434 MS patients (57 clinically isolated syndrome, 196 relapsing-remitting [RR], 106 secondary progressive [SP], 75 primary progressive [PP]) and 270 HC. T1w/T2w-ratio maps were obtained after calibrating signal intensities to eyes and temporal muscle. Sex- and site-adjusted lifespan trajectories of T1w/T2w-ratio were estimated in different brain structures of HC using linear mixed models. Then, sex-, age- and site-specific T1w/T2w-ratio z-scores were derived in MS patients and compared among different clinical phenotypes and levels of disability. The associations with clinical and MRI variables were investigated. Results. In HC, T1w/T2w-ratio increased with age until 50-60 years both in WM and GM. Compared to HC, T1w/T2w-ratio was significantly lower in WM lesions of all MS phenotypes, and in normal-appearing (NA) WM and cortex of RRMS and SPMS patients (p≤0.026), but it was significantly higher in the striatum and pallidum of RRMS, SPMS and PPMS patients (p≤0.042). Furthermore, compared to HC, T1w/T2w-ratio was significantly lower in WM lesions and NAWM in relapse-onset MS patients with mild levels of disability (Expanded Disability Status Scale [EDSS]<3.0) and in the cortex in relapse-onset MS patients with EDSS≥3.0 (p≤0.023). Conversely, T1w/T2w-ratio was significantly higher in the striatum and pallidum in relapse-onset MS patients starting at EDSS≥4.0 (p≤0.005). In PPMS, T1w/T2w-ratio was significantly higher in the striatum and pallidum beyond EDSS≥6.0 (p≤0.001). In MS, longer disease duration, higher EDSS, higher brain T2-hyperintense lesion volume, and lower normalized brain volume were associated with lower T1w/T2w-ratio in WM lesions and cortex and a higher T1w/T2w-ratio in the striatum and pallidum (β from -1.168 to 0.286, p≤0.040). Conclusions. Compared to HC, heterogeneous T1w/T2w-ratio abnormalities were detected in specific brain compartments according to MS clinical phenotypes and disability. Various pathological substrates, including demyelination, inflammation, neurodegeneration, and iron accumulation may explain alterations of this index and their clinical relevance.
Ciprian, Manuela. « Fattori di rischio per il primo evento trombotico in soggetti positivi per anticorpi antifosfolipidi. Studio multicentrico, prospettico, di follow-up ». Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3423201.
Texte intégralFATTORI DI RISCHIO PER IL PRIMO EVENTO TROMBOTICO IN SOGGETTI POSITIVI PER ANTICORPI ANTIFOSFOLIPIDI. STUDIO MULTICENTRICO, PROSPETTICO, DI FOLLOW-UP Introduzione. La sindrome da anticorpi antifosfolipidi (APS) è definita dalla persistente presenza di anticorpi antifosfolpidi (aPL) nel sangue in associazione a manifestazioni trombotiche e/o impegno ostetrico. Alcuni studi hanno recentemente tentato di identificare gli elementi predittivi dell’evento trombotico negli aPL carriers, ma differenze sostanziali nel disegno degli studi, nei criteri di selezione dei pazienti, nei profili anticorpali e nei fattori di rischio considerati rendono difficile trarre delle conclusioni definitive. Obiettivi. Identificare i fattori di rischio per il primo evento trombotico nei pazienti positivi per aPL e valutare l’efficacia della profilassi. Metodi. Lo studio ha incluso pazienti/soggetti provenienti da 11 Centri Reumatologici facenti parte del Gruppo di Studio sulla APS della Società Italiana di Reumatologia. I criteri di inclusione erano i seguenti: età compresa tra 18 e 65 anni, anamnesi negativa per trombosi. I criteri di laboratorio erano: due positività consecutive per aPL, in accordo con i criteri di Sidney, ad almeno 12 settimane di distanza l’una dall’altra. Le donne con l’impegno ostetrico della APS erano incluse. I dati demografici, di laboratorio e clinici erano raccolti all’arruolamento e una volta all’anno durante il follow-up. Il profilo anticorpale era determinato anche al momento dell’evento trombotico. Gli anticorpi anti-cardiolipina e anti-beta2glicoproteina I sono stati determinati da 5 Centri con metodo Elisa “in-house” e dai rimanenti 6 Centri con kits commerciali. Il Lupus Anticoagulant (LA) è stato testato secondo i criteri dell’ International Society of Thrombosis and Haemostasis. Risultati. Duecentocinquantotto pazienti/soggetti (223 donne e 35 uomini di età media 40.9 anni ± 11.1 SD) sono stati reclutati tra l’Ottobre 2004 e l’Ottobre 2008. Il follow-up medio è stato di 35 mesi ± 11.9 SD (range 1-48). Quattordici pazienti (5.4%, annual incidence rate 1.86%) hanno sviluppato il primo evento trombotico (in 9 casi venoso, in 5 arterioso) durante il follow-up. Sette di questi stavano assumendo un trattamento profilattico al momento dell’evento (6 in modo continuativo ed 1 in corso di gravidanza). In 5 casi il primo evento trombotico si è verificato durante un periodo ad alto rischio (gravidanza/puerperio, immobilizzazione o chirurgia). L’ipertensione ed il LA sono stati identificati dall’analisi multivariata come fattori di rischio indipendenti per la trombosi (OR=3.6 con 95% CI= 1.2-11, p<0.05 e OR=3.7 con 95% CI= 1-13.8, p<0.05, rispettivamente). E’ risultato inoltre che la profilassi con aspirina a basso dosaggio (100 mg) e/o eparina durante i periodi ad alto rischio è significativamente protettiva (OR=0.1 con 95% CI= 0.01-0.9, p<0.05), mentre la profilassi data in modo continuativo non è protettiva. Conclusioni. Da questo studio prospettico di follow-up è risultato, in linea con quanto emerso nel nostro precedente studio retrospettivo, che l’ipertensione è un fattore di rischio per il primo evento trombotico in aPL carriers asintomatici. Inoltre anche il LA è risultato un fattore di rischio per trombosi e la profilassi, somministrata nei periodi ad alto rischio, è risultata, infine, protettiva.
GHAZANFAR, MARIA. « STUDIO LONGITUDINALE MULTICENTRICO PER LA VALUTAZIONE DI FATTORI PRENATALI E POSTNATALI PRECOCI CORRELABILI AL RISCHIO DI SOVRAPPESO E OBESITÀ INFANTILE ». Doctoral thesis, Università degli Studi di Milano, 2015. http://hdl.handle.net/2434/344729.
Texte intégralMagnano, Michela <1984>. « Allungamento del tempo di somministrazione dei farmaci biologici in pazienti con psoriasi stabilizzata come raggiungimento della "sensazione di guarigione" : studio multicentrico ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amsdottorato.unibo.it/8995/1/tesidefinitivadottoratopersito.pdf.
Texte intégralPsoriasis is a cutaneous chronic inflammatory disease which can be classified in mild, moderate or severe, according with the skin involvement. For the severe forms, biological therapies have been recently introduced. These therapies often cause a complete clearance of the skin lesions, but they have specific and rigid dose administration regimens. Recently, some studies have proposed a dose tapering to improve the patient's quality of life and reduce the health costs. We considered in this study 199 patients treated with one biological therapy among infliximab, etanercept, adalimumab or ustekinumab, from January 2005 through June 2018. Of them, 96 reached a complete clearance of the lesions (PASI100) maintained for at least 12 months. In this group, we elongated the administration period of the used biologic and we administered a questionnaire about the “healing sensation”. In the other 103 patients, who did not reach the PASI100, we maintained the therapy at the standard dose. We also evaluated the percentage of relapses among the two groups and the association between the incidence of relapses and hypertension, diabetes, psoriatic arthritis or smoking habits. The difference in terms of relapses between the two groups appeared negligible (p-value 0.445) while hypertension has been related to a higher percentage of psoriasis recurrence in both groups. In the group of dose tapering, most patients (61,70%) reported high satisfaction and “healing sensation” after the dose tapering of the biologic. Biological therapies cause often a good therapeutic response or, in most cases, a complete remission of the disease. Our study demonstrated that a dose tapering of biologics maintain good results in terms of efficacy and it is well accepted by the psoriatic patients. More studies are needed to evaluate the long-term efficacy of these new therapeutic regimens of biologics and to study the newly introduced parameter of “healing sensation”.
Ramírez, Maldonado Ruby Elena. « Ensayo clinico multicentrico, prospectivo aleatorizado, que compara la eficacia de inicio de dieta oral temprana frente a dieta absoluta en pacientes con pancreatitis aguda ». Doctoral thesis, Universitat Rovira i Virgili, 2019. http://hdl.handle.net/10803/668976.
Texte intégralINTRODUCCIÓN: El soporte nutricional para pacientes con pancreatitis aguda es esencial. Los mayores beneficios se obtienen si la dieta se inicia tempranamente, pero la definición de término temprana es controvertida. El objetivo de este estudio es establecer el momento óptimo para comenzar la dieta en los pacientes con pancreatitis aguda con el fin de lograr una reducción de la estancia hospitalaria y las complicaciones. MÉTODOS: Estudio multicéntrico, aleatorizado, controlado. Se incluyeron pacientes con diagnóstico de pancreatitis aguda, que ingresaron consecutivamente a 4 hospitales de 2017 a 2019. Se asignaron al azar en dos ramas de tratamiento: un grupo con inicio de dieta oral de forma convencional (CORF) y otro grupo con inicio de dieta oral temprana (EORF). El grupo EORF (dieta sólida que se inició inmediatamente después del ingreso hospitalario) se comparó con el grupo CORF (que reinicio la dieta oral progresiva cuando los síntomas clínicos y de laboratorio habían mejorado). La estancia hospitalaria, la recaída por dolor, las complicaciones, la calidad de vida y los costes se compararon entre los dos grupos. RESULTADOS: Un total de 131 pacientes fueron asignados al azar. La estancia hospitalaria media para el grupo CORF y EORF fue de 8,8 (DE ± 7,9) días y 3,4 (DE ± 1,7) días respectivamente (p <0,001). La recaída del dolor fue del 16% solo en el grupo CORF. Las complicaciones fueron más en el grupo CORF vs EORF (26% vs 8%). Los costes en salud fue 1.6 veces menor en el grupo EORF, con un ahorro de 837.4 € por paciente. CONCLUSIONES: El inicio de dieta oral temprana en pacientes con pancreatitis aguda leve y moderada es seguro y factible, mejora la estancia hospitalaria sin efectos adversos, sin afectar la calidad de vida y con un ahorro significativo en los costes hospitalarios. Registrado en www.clinicaltrials.gov (NCT03829085).
INTRODUCTION: Nutritional support for patients with acute pancreatitis is essential. The greatest benefits are obtained if the diet is started early, but the definition of early term is controversial. The aim of this study is to establish the optimal time to start the diet in order to achieve a reduction in hospital stay and complications. METHODS: Multi-center, randomized, controlled study. We included patients with a diagnosis of acute pancreatitis, who were admitted consecutively to 4 hospitals from 2017 to 2019. They were randomized in two treatment branches: a group with conventional oral refeeding (CORF) and another group with early oral refeeding (EORF). The EORF group (solid diet was initiated immediately after hospital admission) was compared with CORF group (that restarted progressive oral diet when clinical and laboratory symptoms had improved). Hospital stay, relapse pain, complications, quality of life (QoL) and costs were compared between the two groups. RESULTS: A total of 131 patients were randomized. The mean hospital stay for CORF and EORF group was 8.8 (SD±7.9) days and 3.4 (SD±1.7) days respectively (p<0.001). Pain relapse was 16% only in the CORF group. Complications were more in CORF vs EORF group (26% vs 8%). The health cost was 1.6 times lower in the EORF group, with savings of 837.4€ per patient. CONCLUSIONS: The EORF in patients with mild and moderate acute pancreatitis is safe and feasible, improving hospital stay without adverse effects, without affecting QoL and with significant cost savings. Registered at www.clinicaltrials.gov (NCT03829085).
Lionetti, Maria Elena. « Epoca di introduzione del glutine e rischio di malattia celiaca : trial clinico multicentrico, prospettico, randomizzato in lattanti ad alto rischio di malattia. Risultati preliminari ». Thesis, Università degli Studi di Catania, 2011. http://hdl.handle.net/10761/242.
Texte intégralBackground: In the last few years, several epidemiological studies have suggested that the timing of the introduction of gluten, as well as the pattern of breastfeeding, may play an important role in the subsequent development of celiac disease (CD). However, these case-control studies lack consistency, possibly due to limitations of a retrospective design. Aim: To evaluate the role of (a) age at gluten introduction on the incidence of CD in a large cohort of at-risk infants (first-degree relatives of patients with CD); (b) of other early environmental factors, particularly milk feeding, on the development of CD; (c) different HLA- DQ2/DQ8 molecules and genotypes (high risk versus low risk) on CD predisposition, and their interplay with infant nutrition patterns. Study design: Prospective multicentric randomized placebo-controlled clinical trial conducted in Italy. Patients and methods: Between October 2003 and June 2007 a total of 624 infants (49.8% M) at increased risk for celiac as defined by having a first-degree relative with CD were enrolled. Per protocol (a) infants were blindly assigned to introduce gluten in their diet either between the 4th and 6th month (group A) or after the 12th month (group B) and entered a follow-up period of 5 years, (b) diet (duration of breastfeeding and types of formulas, adherence to the dietetic plan, amount of gluten administered) and clinical data were collected during telephone or face-to-face interviews at 4, 7, 9, 12 months of age, (c) CD serology was tested at 15 (plus HLA), 24, 36 and 60 months of age. Results are relative to a representative sample varying from the 40% to the 90% of the whole cohort according to the different variables studied. Results: 55% were enrolled in group A and 45% in group B. Familiarity for CD was: 51% one sibling, 37% mother, 7% father, 4.8% mother plus a sibling and father plus a sibling respectively and 0.2% two siblings. HLA determination showed the presence of alleles: DQ2 in 85%, DQ8 in 6%, DQ2/8 in 2% and none in 7%. There was no difference in the studied variables according to weaning group. At 15 months 9/312 infants of Group A developed CD as compared with 1/247 of Group B (2.9% vs 0.4%; p<0.02); at 24 months 21/230 infants of Group A developed CD as compared with 10/188 of Group B (9.1% vs 5.3%; p=NS); a 36 mesi 6/151 developed CD as compared with 10/138 of Group B (3.9% vs 7.2%; p=NS). At 2 years the percentage of infants developing CD of Group A was significantly higher than Group B (13% vs 5.8; p<0.02). The risk of CD was significantly reduced in infants who were breast feeding at the time of gluten introduction compared with infants who were not breast feeding during this period (hazard ratio 3.0, 95% CI 0.40 to 5.6). Conclusions: The risk of developing biopsy-proven CD was significantly higher among infants weaned with gluten at 6 than at 12 months of age. A prolonged follow-up is required to clarify whether age at gluten introduction influences the risk of CD development or merely delays gluten sensitization.
MARIANI, JACOPO. « MULTICENTRE AND MULTISPECIES PRECLINICAL TRIAL OF REMOTE ISCHEMIC CONDITIONING IN ANIMAL MODEL OF ACUTE ISCHEMIC STROKE (TRICS–BASIC) ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2023. https://hdl.handle.net/10281/403043.
Texte intégralRemote ischemic conditioning (RIC) represents an ideal candidate to enter a multicenter trial for acute ischemic stroke (AIS) treatment, since previous results from single laboratories support its efficacy, but unfortunately phase II–III clinical trials still provided inconclusive results. TRICS–Basic is the preclinical trial in the TRICS project, a multicentre translational Trial of Remote Ischemic Conditioning in Acute Ischemic Stroke from the Italian Stroke Organization (ISO) Basic Science network, which consisted in the collaboration of 7 Italian institution. TRICS–Basic is a robust, translationally oriented, multicentre, randomized preclinical trial, which includes two animal species (rats and mice) and both male and female sexes are equally represented. The aim of this project was to investigate the efficacy of RIC treatment in AIS experimental models. All the animals in the MCAo+ groups were subjected to the same time of occlusion (60 min in mice; 100 min in rats). The treatment was applied by clamping the ipsilateral femoral artery for 10 min in mice and 20 min in rats. Blinded outcomes assessment was performed both for dichotomized functional neuroscore (primary outcome) and for infarct volume (secondary outcome) at 48 hours. Statistical analyses were performed in a blind status and according to an intention–to–treat paradigm. During the initial experimental period, we carried out a harmonization phase, including all the involved centres, in order to reduce the assessment bias during the neurobehavioral test evaluation. After we have reached the target of Inter class correlation (ICC) 30.60 imposed a priori by the protocol paper, we started the real experimental phase. The experimental cohort was composed by n=206 animals (n=110 mice and n=96 rats) but only n=168 were allocated in the MCAo+ groups (n=88 mice; n=80 rats) and n=152 animals were included in the study (n=78 mice; n=74 rats). The obtained data showed that RIC improve the good functional outcome (+20% in mice; +18% in rats) and reduce the area of ischemic injury (-4.3% in mice; -26.6% in rats) in both species. Despite the large number of animals used in this study and as compared to previous preclinical studies on RIC treatment, we did not reach the statistical significance in our two major outcomes, if we compare the single species alone. On the contrary, if we combine together all the animals, we obtained a significant result in both the analysed outcomes. This suggest that, similarly to clinical trials, a larger sample size would have resulted in more significant results in the functional and the infarct size outcomes single species analyses.
BUFFELLI, FRANCESCA. « Vasculogenesi, anomalie di crescita vascolari della placenta e cardiopatie congenite : uno studio sperimentale, multidisciplinare e multicentrico volto ad individuare una correlazione ad oggi non nota ». Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1010298.
Texte intégralIntroduction: Congenital heart diseases (CHD) are the most frequent congenital anomalies at birth, with an incidence of 1 in 100 live births. The placenta is the most complex fetal organ, responsible of fetal development and growth during pregnancy. Although the development of the placenta and heart occurs in parallel, the relationship between these two organs is unknown and only recently elucidated. Methods: We conducted a retrospective observational study, including patients born exclusively at the G. Gaslini hospital, between January 2014 and March 2018 with a prenatal diagnosis of CHD and an anatomopathological analysis of the placenta, for a total of 151 patients. Fetuses with CHD Mayor were divided into 5 categories, based on cardiovascular physiology, as follows: (1) single ventricle with aortic obstruction, (2) single ventricle with pulmonary obstruction, (3) two hemodynamically unstable ventricles, (4) transposition of the great arteries, (5) two hemodynamically stable ventricles. For each patient, the following data were considered: absolute placental weight, macroscopic and vascular alterations of the umbilical cord, maternal body mass index (BMI), gender, fetal and neonatal intrauterine growth restriction (IUGR), extracardiac anomalies, surgical procedure or percutaneous in the neonatal period. For statistical analysis, the Fisher test was used, with which we studied the dependency ratio between a specific variable and the CHD; a p <0.05 was considered significant. Results: Only four variables showed scientific significance: neonatal surgery (p = 0.000008), associated extracardiac anomalies (p = 0.012), umbilical cord edema (p = 0.007) and gender (p = 0.015). Although we had found a high incidence of abnormal insertion of the umbilical cord in the placentas of heart disease infants, the result of Fisher's analysis showed no dependence between the CHD groups and this variable (p = 0.379). Conclusion: From the analysis of our results, we do not believe that the weight of the placenta can predict the diagnosis of CHD, as previously reported in the literature. Based on our experience, we cannot consider abnormal cord insertion as a high risk factor for CHD. Therefore, we do not consider it necessary to expand the ultrasound screening method by analyzing the cord insertion method. Conversely, the presence of edema of the umbilical cord was found to be CHD dependent therefore, it could be considered a risk factor for CHD. Similarly, gender was also dependent on CHD, with a strong association between the male sex and CHD Mayor. For the future, we believe it is necessary to implement the study with the inclusion of a control group and with the inclusion of other clinical and instrumental variables of the fetus and placenta.
Paolini, Stefania <1978>. « L'associazione Tipifarnib-Bortezomib nel trattamento delle leucemie acute mieloidi : risultati di uno studio multicentrico di fase I/II e validazione di un profilo genico predittivo di risposta ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3559/1/paolini_stefania_tesi.pdf.
Texte intégralPaolini, Stefania <1978>. « L'associazione Tipifarnib-Bortezomib nel trattamento delle leucemie acute mieloidi : risultati di uno studio multicentrico di fase I/II e validazione di un profilo genico predittivo di risposta ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3559/.
Texte intégralGhisleni, D. « EFFETTO DELLA DIETA PRIVA DI GLUTINE SU ADIPOSITA', PROFILO LIPIDICO E METABOLISMO GLUCIDICO IN BAMBINI AFFETTI DA MALATTIA CELIACA : STUDIO MULTICENTRICO CONDOTTO IN ITALIA E IN ISRAELE ». Doctoral thesis, Università degli Studi di Milano, 2013. http://hdl.handle.net/2434/217717.
Texte intégralQUAQUARINI, ERICA. « FATTORI CLINICI DI EFFICACIA DELLE TERAPIE IMMUNOTERAPICHE ANTI-PD-1/PD-L1 IN PAZIENTI AFFETTI DA CARCINOMA POLMONARE NON A PICCOLE CELLULE IN STADIO AVANZATO : STUDIO REAL-LIFE MULTICENTRICO ». Doctoral thesis, Università degli studi di Pavia, 2021. http://hdl.handle.net/11571/1434016.
Texte intégralSeveral clinical studies have evaluated the efficacy and tolerability of treatment with immune checkpoint inhibitors in patients with advanced stage non-small cell lung cancer. However, there are still many uncertainties regarding the selection of the patients who could benefit the most from this treatment. In a context in which there is a slow but constant improvement in the prognosis of a disease traditionally considered poor in the short term, the weight of those variables, above all "clinical" ones, linked to the patient and his non-oncological anamnesis, can contribute to predicting the benefit of treatments as well as their potential toxic effects. The present study aims to evaluate in an unselected population the prognostic and predictive weight of different humoral variables (histology and PD-L1 value on tumour biopsy, presence of anemia, LDH value, neutrophil/lymphocyte ratio) and clinical ones (performance status, age, smoking status, type of anemia corrections, disease sites, comorbid burden) in patients with advanced NSCLC candidates to receive immunotherapy according to AIFA indications. A total of 166 patients from two University Hospitals of Pavia were enrolled. The median age of the entire population was 68.5 years. 71% of the patients were male and 29% female. 92% were active smokers or former smokers. About half of the patients (45-18%) had an ECOG PS score of 0, while 43.37% had an ECOG PS score of 1 and 11.45% of 2-3. 25.3% of patients had squamous NSCLC, while 74.7% had non-squamous carcinoma, histotype adenocarcinoma. 27.16% of patients had an immunohistochemical expression of PD-L1 on tumour biopsy <1%, 45.68% between 1 and 49%, 44% ≥ 50%. At the start of immunotherapy treatment, most of the patients (76.51%) presented with stage IV disease. Nivolumab was administered to 50% of patients, pembrolizumab to 34%, atezolizumab to less than 4% and durvalumab to 12% of patients. In most cases, patients received immunotherapy treatment in the 2nd (57.23%) or 3rd (13.86%) line of treatment. About 50% of patients had anemia at the start of treatment and in most cases the cause of the anemia was the underlying chronic disease. Concerning the sites of disease of interest, about 12% of patients had brain metastases, 11% liver disease, 23% skeletal metastasis, 87% lymph node metastasis and 9% pleural metastasis. The results of this study show that immunotherapy is confirmed to be an effective and well tolerated treatment in an unselected population of patients with advanced non-small cell lung cancer. Our study suggests that some clinical variables are particularly influencing the probability of response to treatment as well as the risk of progression at 6 months and the risk of death at 6 and 12 months. These variables are represented by the patient's performance status, the immunohistochemical expression value of PDL 1 on the tumour piece, the presence of anemia before starting treatment and the LDH values and the neutrophil/lymphocyte ratio. In an era in which research is focusing on prognostic or predictive tumour molecular alterations as well as tumour mutational burden, this study highlights how the clinical characteristics of the patient are still an influential basis for predicting the response and the prognosis to oncological treatments, even more with immune checkpoint inhibitors, in which patient's immune system must guide the response to the treatment itself.
Klimek, Martin. « Neuroinformatika a sdílení dat z lékařských zobrazovacích systémů ». Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218660.
Texte intégralTakahashi(Mizuguchi), Aya. « Genetic features of multicentric/multifocal intramucosal gastric carcinoma ». Kyoto University, 2019. http://hdl.handle.net/2433/243290.
Texte intégralKovalčík, Tomáš. « Neuroinformatika : metody kalibrace v multicentrické MR studii ». Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218769.
Texte intégralMoraes, Thyago Proença de. « Starch : estudo de clínico randomizado, aberto e multicentrico para análise da resistência insulínica através do índice homa em pacientes renais crônicos não diabéticos em diálise peritoneal automatizada submetidos a solucão de icodextrina 7,5% versus solução de g / Thyago Proença de Moraes ; orientador, Roberto Pecoits-Filho ». reponame:Biblioteca Digital de Teses e Dissertações da PUC_PR, 2011. http://www.biblioteca.pucpr.br/tede/tde_busca/arquivo.php?codArquivo=2173.
Texte intégralInclui bibliografias
A diálise peritoneal é uma terapia de substituição renal que apresenta resultados equivalentes à hemodiálise. Apesar dos avanços tecnológicos ocorridos até hoje, as taxas de mortalidade permanecem extremamente elevadas nos doentes renais crônicos terminai
Peritoneal dialysis (PD) is a renal replacement therapy, which presents similar mortality rates when compared to hemodialysis. Despite the development of new techniques and devices over the past decades, mortality rates remains extremely high in patients
RELLA, VALERIA. « AMILOIDOSI CARDIACA ANALISI DI PREVALENZA IN DUE STUDI MULTICENTRICI ITALIANI ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/366496.
Texte intégralAmong patients with initial diagnosis of HCM, cardiac amiloidosis has a prevalence of 9% and it increases with age. In the general population > 55 yo more than 7% has echocardiographic suspicion of the disease and echocardiography has an important role in the early diagnosis of the disease
Lim, Stephen Chin Ming. « Asian Biblical hermeneutics as multicentric dialogue : towards a Singaporean way of reading ». Thesis, King's College London (University of London), 2017. https://kclpure.kcl.ac.uk/portal/en/theses/asian-biblical-hermeneutics-as-multicentric-dialogue(a5c5fd43-270c-4e07-bd6b-412442d61364).html.
Texte intégralNUGARA, Cinzia. « Effetti della Terapia con Sacubitril/Valsartan sulla Capacità di Esercizio dei pazienti con Scompenso Cardiaco a Frazione di Eiezione Ridotta (HFrEF) nel Follow-up a Breve, Medio e Lungo Termine e Ruolo della percentuale di Delayed Enhancement (DE) alla Risonanza Magnetica Cardiaca (CMR) sulla risposta alla terapia : uno Studio Multicentrico ». Doctoral thesis, Università degli Studi di Palermo, 2021. http://hdl.handle.net/10447/477048.
Texte intégralIntroduction: Sacubitril/valsartan in heart failure (HF) with reduced ejection fraction (HFrEF) was shown to be superior to enalapril in reducing the risk of death and hospitalization for HF. The aim of this study was to evaluate cardiopulmonary effects of sacubitril/valsartan in patients with HFrEF and the possible correlation with the degree of myocardial fibrosis assessed with cardiac magnetic resonance (CMR). Methods: An observational, prospective study was conducted. 134 outpatients with HFrEF underwent serial cardiorespiratory tests after initiation of therapy with Sacubitril / Valsartan. Of these, 54 patients underwent CMR. The remaining 80 patients did not perform CMR as they had undergone ICD implantation prior to enrollment in the aforementioned study. Results: After a mean follow-up of 13.3 ± 6.6 months, a reduction in systolic blood pressure (p <0.0001), an improvement in FE (p = 0.0003), a reduction in the E/A ratio (p = 0.007), inferior vena cava size (p = 0.009) and NT-proBNP levels (p = 0.007) was observed. During the follow-up, we observed an increase in peak VO2 of 16% (Δ = + 5 mL / Kg / min; p <0.0001) and in O2 pulse of 13% (Δ = +1, 7 mL / beat; p 0.0002), as well as an improvement in ventilatory response associated with a 7% reduction in the VE/VCO2 slope (Δ = 2.5; p = 0.0009). VO2 at the anaerobic threshold (AT-VO2) went from 11.5 +2.6 to 12.5 +3.3 mL / kg / min (p = 0.021); furthermore, an 8% increase in the Δ VO2 / Δ Work ratio (Δ = +0.8 mL / beat; p 0.0001) and an 18% increase in the tolerance to physical exercise (Δ = +16 Watt; p <0.0001). In multivariate logistic regression analysis, the main predictors of events during follow-up were the VE/VCO2> 34 [OR: 3.98 (95% CI: 1.59 10.54); p-value = 0.0028]; the presence of ventilatory oscillation [OR: 4.65 (95% CI: 1.55 1 6.13); p value = 0.0052] and the hemoglobin value [OR: 0.35 (95% CI: 0.21 0.55); p value <0.0001]. In the subgroup of patients undergoing CMR, a lower response after sacubitril/valsartan therapy was observed in the presence of Delayed Enhancement (DE) > 4.6% in terms of improvement in peak VO2 delta (+2.1 vs. + 4.7), pulse of O2 (+1.4 vs. +4.2), FE (+4.1 vs. + 10) and NT-proBNP (760 vs. 810). No significant differences were observed in terms of ΔVO2/ΔWork and VE / VCO2. Conclusions: The results of the study show that therapy with Sacubitril/valsartan improves exercise tolerance, left ventricular ejection fraction, peak VO2 and anaerobic threshold and ventilatory efficiency. The presence of myocardial fibrosis conditions the response to therapy with sacubitril/valsartan. In fact, in these patients, the effects of the drug on the functional capacity and cardiorespiratory parameters, even if maintained, are reduced. However, further studies are needed in order to better understand the mechanism of action of the drug and the effects on cardiac remodelling.
Matheus, Wagner Eduardo. « Carcinoma urotelial invasivo de bexiga primario versus progressivo : analise multicentrica de sobrevida global ». [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/312203.
Texte intégralTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
Made available in DSpace on 2018-08-09T15:47:05Z (GMT). No. of bitstreams: 1 Matheus_WagnerEduardo_D.pdf: 1544170 bytes, checksum: b8c2ff3d48db298c2b90e9243e4fad82 (MD5) Previous issue date: 2007
Resumo: O melhor tratamento para o carcinoma urotelial invasivo de bexiga é a cirurgia de cistectomia radical. O objetivo principal desse estudo foi de comparar a taxa de sobrevida global dos tumores músculo invasivos primários dos tumores invasivos progressivos. O objetivo secundário foi comparar a taxa de sobrevida global dos subgrupos pT3/4, acometimento linfonodal e presença de metástases, dos tumores primários e invasivos. Nesse estudo multicêntrico retrospectivo, foram avaliados 242 pacientes submetidos à cistectomia radical, no período de 1992 a 2005, para tratamento de carcinoma urotelial invasivo de bexiga. Os pacientes foram divididos em dois grupos: Grupo I ¿ 185 pacientes com tumor invasivo primário e Grupo II - 57 pacientes com carcinoma urotelial invasivo progressivo. Além disso, conforme achados histopatológicos, ambos os grupos foram divididos em subgrupos: pT2 (invasão de musculatura vesical), pT3/4 (invasão de gordura perivesical e órgãos ou tecidos adjacentes), N+ (acometimento de linfonodos) e M+ (presença de metástases). Para análise estatística foram aplicados os testes de qui-quadrado, Mann-Whitney, Kaplan-Meier e Wilcoxon (Breslow). A média e mediana de seguimento foram de 98 e 90 meses para o Grupo I, e 96 e 88 meses para o Grupo II, respectivamente, e sem diferença estatística significativa (p = 0.0734). No seguimento, foram observadas as seguintes taxas de sobrevida global: no primeiro ano, 77% para o Grupo I e 84% para o Grupo II; no terceiro ano, 59% e 74% e, no quinto ano, 52% e 58% para os grupos I e II, respectivamente, sem diferença estatística significativa. Quando analisados separadamente, os três subgrupos: tumores PT3/T4, acometimento linfonodal e presença de metástases, também não foram observadas diferenças estatísticas significativas nos grupos I e II. No presente estudo, não houve diferença significativa de sobrevida global dos pacientes portadores de tumores vesicais invasivos primários e progressivos, no seguimento de cinco anos. Também não houve diferença significativa na sobrevida global, quando analisados separadamente os subgrupos: PT3/4, com acometimento linfonodal e presença de metástases
Abstract: The best treatment for all-invasive bladder cancer is radical cystectomy. The main purpose of this study was to compare the overall survival rate of primary muscle-invasive urothelialbladder carcinoma (UC) to the progressive muscle-invasive bladder carcinoma. A secondary aim was to compare the survival rate of the subgroups pT3/4, lymph nodes involvement and the presence of metastasis in primary and invasive bladder carcinomas. A retrospective multicentric analysis was performed studying a total of 242 patients who underwent radical cystectomy for invasive TCCB from 1992 to 2005. The patients were divided into two groups. There were 185 patients in Group I with progressive invasive TCCB, while Group II had 57 patients with primary invasive TCCB. Both groups were further divided according to the pathological findings in pT2 (muscle invasion), pT3/4 (perivesical fat and/or adjacent organs/structure invasion), N+ (positive lymphaticnodes) and M+ (distant organ metastasis). Several tests were employed for the statistical analysis: qui-square, Mann-Whitney, Kaplan-Meier method and Wilcoxon (Breslow). The average and median follow-ups were, respectively, 98 and 90 months in Group I and 96 and 88 months in Group II, without a significant statistical difference (p = 0.0734). The 1-year survival rate was 77% in Group I and 84% in Group II. After 3 years of follow-up the survival rate fell to 59% in Group I and 74% in Group II. Finally, the 5-year survival rate was 52% in Group I and 58% in Group II, without a significant statistical difference. When the three subgroups were analyzed separately for tumors pT3/T4, invasivelymphatic nodes and the presence of metastasis, no significant statistical differences were found in either Group I or Group II. In the present study, patients with primary invasive and progressive invasive TCCB showed a similar 5-year global survival rate. Pathological stage (PT, N and M) and patient demography did not interfere with the results
Doutorado
Cirurgia
Doutor em Cirurgia
Duarte, Rosemarie. « Multicentro de desarrollo social y difusión cultural : Comuna Estación Central ». Tesis, Universidad de Chile, 2005. http://repositorio.uchile.cl/handle/2250/100685.
Texte intégralSaracino, Laura. « Coordinamento di Trial Clinici multicentrici finalizzati allo studio e all'ottimizzazione dell'outcome del trapianto epatico ». Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423830.
Texte intégralIntroduzione. Nonostante sia un'applicazione clinica da quasi trent'anni, i dati relativi allo stato di salute a lungo termine dei pazienti trapiantati di fegato sono scarsi. Il numero dei pazienti che raggiungono la soglia di sopravvivenza a 10 anni è in aumento, esponendo questa popolazione al rischi associati all'uso cronico degli immunosoppressori. Metodi. Il Centro Trapianti di Fegato di Padova ha coordinato due studi multicentrici spontanei: uno studio retrospettivo, osservazionale, longitudinale, multicentrico (12 Centri Trapianto di Fegato italiani) che valuta la sopravvivenza a lungo termine e le principali caratteristiche della popolazione ricevente; e EPOCAL uno studio spontaneo di Fase II, interventistico, multicentrico (7 Centri Trapianto di Fegato italiani), in aperto, randomizzato, controllato che valuta il rigetto e la perdita del graft a 3 mesi dal trapianto, la funzione renale e l'incidenza degli eventi avversi. Risultati. I dati su 3008 trapianti di fegato effettuati in Italia dal 1993 al 1999 sono stati registrati in un eCRF. I dati di 2846 pazienti con un sufficiente follow-up sono stati usati per le analisi successive. La sopravvivenza a 20 anni dal trapianto è stata stimata al 51%. Un totale di 139 pazienti è stato arruolato nello studio EPOCAL, 92 nel gruppo di studio e 47 nel gruppo di controllo. Non abbiamo trovato differenze significative tra i due gruppi prima all'arruolamento. L'end-point primario dello studio è stato raggiunto: i rigetti acuti confermati da biopsia erano meno del 25 % (sotto 14 %) (p < 0,05). La funzione renale a tre mesi era significativamente migliore nel gruppo di studio (p < 0,05). Conclusioni. Questi studi presentano un profilo di sopravvivenza eccellente della coorte di pazienti italiani trapiantati di fegato da lungo tempo. Mostriamo sicurezza ed efficacia di un protocollo immunosoppressivo con minimizzazione degli inibitori della calcineurina (tacrolimus), e l'introduzione precoce di everolimus. L'insieme dei risultati mostra una strada verso la sopravvivenza a lungo termine dei pazienti con protocolli immunosoppressivi sostenibili.
Boriani, Filippo <1977>. « The "Orthoplastic" combined surgical approach to open tibia fractures : a multicentric prospective outcome study ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6754/4/tesidottorato22%EF%80%A212%EF%80%A22014.pdf.
Texte intégralBoriani, Filippo <1977>. « The "Orthoplastic" combined surgical approach to open tibia fractures : a multicentric prospective outcome study ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/6754/.
Texte intégralZhang, Wei Hong. « The Strengths and challenges of multicentric European epidemiological projects in the field of reproductive health ». Doctoral thesis, Universite Libre de Bruxelles, 2007. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210700.
Texte intégralThe EUROFETUS project showed that, despite the fact that the birth prevalence of congenital anomalies has been declining during the last twenty years, they are still a major cause of perinatal mortality and childhood disability in Europe. Congenital heart defects were among the most frequent and the most severe malformations, but were the least diagnosed prenatally. There was large variation between and within countries regarding the proportion of cases diagnosed prenatally and the proportion of cases resulting in termination of pregnancy. From the data available in Eurofetus, such variation might result from the cultural differences underling policy or on ultrasonographer’s expertise, or on differing interpretation of scientific evidence in the design and implementation of screening.
The MOMS-B project allowed population-based comparisons between countries by using the standardised definition that showed the three conditions (pre-eclampsia, postpartum haemorrhage and sepsis) selected to as markers of acute severe maternal morbidity are not rare in Europe. Severe haemorrhage was the most common of severe maternal morbidity condition, but its incidence varied widely between European countries.
The PERISTAT project on the indicators of unfavourable maternal health outcome showed that the maternal mortality ratios (per 100, 000 live births) for early obstetric death ranged from 2.8 to 11.4 across European countries studied. Such variation reflected different resources and systems in place with varying level of ascertainment in addition to difference in the number of maternal deaths.
The EUPHRATES project on a survey of current practice in relation to management of the third stage of labour and the immediate management of postpartum haemorrhage in 14 European countries showed that there were considerable differences in policies for managing the third stage of labour between and within the countries studied.
The online questionnaire survey for researchers showed that almost all researchers were satisfied with their participation in EU-funded project; the main benefits for them were transfer and sharing of experience and knowledge between researchers, but the administrative procedures should be simplified in the future. The description of the process needed to obtain ethical approval for a cluster randomized trial in the EUPHRATES project showed that there was considerable variation in time required and the criteria used amongst 14 European countries, with consequential delay in research and exclusion of one country from the trial.
Overall, we conclude that Community Framework programmes offer new opportunities to connect researchers from all over Europe to share expertise and resources, including computing tools, and make a real contribution to the creation of the European research area. The added value of EU collaborative research is particularly well positioned for improving foetal and maternal health, from the perspective of harmonizing case definitions, collecting the necessary number of cases within a limited period of time, comparing data between regions and countries, meeting the specific needs of the EU and giving a common response to European reproductive health questions. On the other hand, epidemiological data from multiple countries has advanced our understanding of important health-risks and their geographical distributions across Europe and provided the evidence to help people make better decisions about healthcare in the field of reproductive health for the future research.
We focus on reproductive health but believe that this approach could be adapted to other fields when appropriate./Dans cette thèse, nous avons basé notre expérience sur notre participation dans 4 projets européens (EUROFETUS, MOMS-B, PERISTAT et EUPHRATES), un questionnaire en ligne vers les chercheurs, et une revue de la littérature pour fournir les résultats qui nous aideront à comprendre la valeur ajoutée qu’apporte la recherche collaborative et les défis de cette recherche pour l’amélioration de la qualité et de l’accessibilité de la santé reproductive.
Le projet EUROFETUS montre que, en dépit du fait que la prévalence des anomalies congénitales à la naissance diminue depuis une vingtaine d’années, elles restent une cause majeure de mortalité périnatale et de handicaps infantiles. Les malformations cardiaques congénitales sont parmi les plus fréquentes et les plus sévères des malformations, mais aussi les moins diagnostiquées. Il y a de larges différences entre et à l’intérieur des pays concernant la proportion de cas diagnostiqués en prénatal et la proportion de cas résultant en interruption de grossesse. D’après les données disponibles dans EUROFETUS, de telles variations pourraient résulter de politiques de santé différentes, reflétant des divergences culturelles, de variations dans l’expertise des échographistes, ou encore d’interprétations divergentes de preuves scientifiques dans la conception ou la mise en place du screening.
Le projet collaboratif européen sur la Mortalité et la Morbidité Maternelle sévère (MOMB-B) a permis des comparaisons en population entre pays en utilisant une définition standardisée qui a montré que les trois pathologies sélectionnées (pré-éclampsie, hémorragie, sepsis) comme marqueurs de la morbidité maternelle sévère n’étaient pas rares en Europe. L’hémorragie sévère était la pathologie la plus fréquente, mais son incidence variait très fort d’un pays à l’autre.
The PERISTAT project on the indicators of unfavourable maternal health outcome showed that the maternal mortality ratios (per 100, 000 live births) for early obstetric death ranged from 2.8 to 11.4 across European countries studied. Such variation reflected different resources and systems in place with varying level of ascertainment in addition to difference in the number of maternal deaths.
Le projet EUPHRATES, par une enquête de pratique concernant le management de la troisième phase du travail et du management immédiat de l’hémorragie du postpartum dans 14 pays européens, a montré qu’il y avait des différences considérables dans les pratiques entre et à l’intérieur des pays en Europe.
Le questionnaire en ligne auprès des chercheurs a montré que la plupart étaient satisfaits de leur participation à des projets européens, les principaux bénéfices étaient le transfert et le partage d’expériences et de connaissances entre chercheurs mais que les procédures administratives devraient être simplifiées dans le futur. La description de l’utilisation des comités d’éthique dans l’essai EUPHRATES a montré de très grandes divergences.
En général, nous concluons que les programmes-cadres européens offrent de nouvelles opportunités aux chercheurs européens de partager l’expertise et les moyens, en ce compris les outils informatiques et contribuent à la création d’un espace européen de la recherche. La valeur ajoutée de la recherche collaborative est particulièrement importante pour améliorer la santé fœtale et maternelle par l’harmonisation de la définition des cas, la collecte du nombre nécessaire de cas dans une période déterminée, la comparaison des données entre les régions et pays, pour rencontrer les besoins spécifiques de l’Union Européenne et donner une réponse commune aux questions de santé reproductive en Europe. D’autre part, les données épidémiologiques de nombreux pays ont fait avancer notre compréhension de risques importants de santé maternelle et leur distribution géographique à travers l’Europe et apporté la preuve de la nécessité d’aider les gens à prendre la meilleure décision en ce qui concerne les soins en santé reproductive pour de futures recherches.
Nous nous sommes concentrés sur la santé reproductive mais nous croyons que cette approche pourrait être adaptée à d’autres domaines.
Doctorat en Sciences de la santé publique
info:eu-repo/semantics/nonPublished
Mongeon, Luc Roland. « The right atrial pacemaker complex : The underlying mechanisms mediating the multicentric origin of atrial depolarization ». Case Western Reserve University School of Graduate Studies / OhioLINK, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=case1060777680.
Texte intégralMOSCATO, GIUSELLA. « Epidemiology of nosocomial infections in intensive care units in Rome (Italy) : a multicentric prospective study ». Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2013. http://hdl.handle.net/2108/209994.
Texte intégralQUAGLIANA, Angelo. « TROMBECTOMIA INTRACORONARICA CON NeVA STENT RETRIEVER IN PAZIENTI AFFETTI DA SINDROME CORONARICA ACUTA : ESPERIENZA MULTICENTRICA FIRST-IN-MEN ». Doctoral thesis, Università degli Studi di Palermo, 2021. http://hdl.handle.net/10447/479107.
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