Relevant bibliographies by topics / Sigmoidoscopy

Academic literature on the topic 'Sigmoidoscopy'

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Published: 4 June 2021
Last updated: 1 March 2023

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Journal articles on the topic "Sigmoidoscopy"

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Parmar, Hardik, Arun R., Sahdevsinh Chauhan, and Akshay Sutaria. "Efficacy of OPD based rigid sigmoidoscopy in diagnosing the patients with bleeding per rectum." International Surgery Journal 6, no. 1 (December 27, 2018): 261. http://dx.doi.org/10.18203/2349-2902.isj20185484.

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Background: The aim of study was to evaluate the patients with bleeding per rectum by rigid sigmoidoscopy and to know the various causes of bleeding per rectum in our OPD population and to select the best approach to treat the underlying pathology.Methods: A total 63 patients with bleeding per rectum in whom cause could not be ascertained by routine methods like proctoscopy were considered from outpatient department form January 2017 to June 2018 for the study. Out of 63 patients, rigid sigmoidoscopy done in 31 patients and results were documented. All 31 patients were undergone for complete clinical examination and rigid sigmoidoscopic examination in the surgical OPD and routine blood, urine and stool investigations were also done.Results: Out of 31 cases in which sigmoidoscopic examination has been done, definitive source of bleeding is identified in 22 cases (70.97%) and in 9 cases (29.03%), the source of bleeding could not be detected by rigid sigmoidoscope.Conclusions: Rigid sigmoidoscopy has a very high diagnostic yield (approximately 71% in this study) in patients with bleeding per rectum which could not be detected by routine ano proctoscopy. Hence rigid sigmoidoscopy would be recommended in the workup of patients presenting with bleeding per rectum and it also serves an equally important function in excluding serious colonic lesions like malignancy and enables us to reassure the patient.
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Marsh, S. K., and S. P. J. Huddy. "Self-Administered Disposable Micro-Enemas before Outpatient Sigmoidoscopy." Journal of the Royal Society of Medicine 89, no. 11 (November 1996): 616–17. http://dx.doi.org/10.1177/014107689608901106.

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Many colorectal carcinomas can be diagnosed by rigid sigmoidoscopy. One important limiting factor in the usefulness of this investigation is the presence of faeces; another is inability to negotiate the recto-sigmoid bend. 101 patients (47 men) were sent a Microlax enema with instruction to use it before their first attendance in the outpatient department. The grade of preparation [on a scale of 0 (empty rectum) to 3, with grades 0 and 1 providing an adequate view], height achieved with the sigmoidoscope and whether or not the extent of the examination was limited by faeces were recorded. These data were compared with results in 78 patients (38 men) who did not receive any special preparation. There were no serious difficulties with self-administration. An adequate view was obtained in 89 (88%) of those who had received an enema and in 41 (53%) of those who were unprepared (P< 0.001, χ2 test). The height achieved and the percentage of patients in whom the sigmoidoscopy was not limited by faeces were also significantly increased. The mailing of micro-enemas to patients who are likely to need sigmoidoscopy is a cheap measure that increases diagnostic yield and saves reattendances.
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Epstein, Michael, Linda Holmes, Robert G. Finkel, Stafford S. Goldstein, and Mary R. Clance. "Sigmoidoscopy." Nurse Practitioner 24, Supplement (November 1999): 16. http://dx.doi.org/10.1097/00006205-199911001-00098.

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WEISSMAN, E. "Sigmoidoscopy." JNCI Journal of the National Cancer Institute 85, no. 23 (December 1, 1993): 1965. http://dx.doi.org/10.1093/jnci/85.23.1965.

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Clawson, Robert J. "Sigmoidoscopy." Lancet 356, no. 9235 (September 2000): 1120. http://dx.doi.org/10.1016/s0140-6736(05)74572-4.

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Abdulazeez, Z., N. Kukreja, N. Qureshi, and S. Lascelles. "Colonoscopy and flexible sigmoidoscopy for follow-up of patients with left-sided diverticulitis." Annals of The Royal College of Surgeons of England 102, no. 9 (November 2020): 744–47. http://dx.doi.org/10.1308/rcsann.2020.0181.

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Introduction The prevalence of diverticular disease has been increasing in the western world over the last few decades, causing a growing burden on health care systems. This study compared the uses of flexible sigmoidoscopy with colonoscopy as a follow-up investigation for patients diagnosed with acute left-sided diverticulitis and to evaluate the need for using either procedure. Materials and methods A retrospective study of 327 patients diagnosed with acute diverticulitis was carried out. Of this total, 240 patients with left-sided diverticulitis diagnosed via computed tomography were included. These patients were categorised into two equal groups: the first 120 patients underwent colonoscopy and the second 120 patients underwent flexible sigmoidoscopy. Results All colonoscopes and flexible sigmoidoscopes confirmed the computed tomography diagnosis of sigmoid diverticular disease with no major new findings. All colonoscopes and flexible sigmoidoscopes were reported as having no complications, with nine colonoscopes reported as being difficult compared with only three flexible sigmoidoscopes. All biopsies were reported as no malignancy. Full bowel preparation was required in all colonoscopes, compared with no preparation required for flexible sigmoidoscopes. Conclusions There is no evidence to support the routine use of endoscopic evaluation after an episode of left-sided diverticulitis diagnosed on computed tomography if no worrying radiological findings have been reported. This study supports similar findings from other studies and therefore we disagree with The Royal College of Surgeons of England (Association of Coloproctology of Great Britain and Ireland recommendations) commissioning guide, which advocates routine surveillance of the colon.
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Lukovich, Péter, Noémi Csibi, Réka Brubel, Krisztina Tari, Szilvia Csuka, László Harsányi, János Rigó Jr., and Attila Bokor. "Prospektív vizsgálat a sigmoideoscopia diagnosztikai érzékenységének meghatározására vastagbelet infiltráló endometriosisban." Orvosi Hetilap 158, no. 7 (February 2017): 264–69. http://dx.doi.org/10.1556/650.2017.30663.

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Abstract: Introduction and aim: In the treatment of colorectal endometriosis a multidisciplinary laparoscopic resection is suggested, for this reason the correct selection of bowel infiltration is essential before surgery. Patients and method: Between 2009 and 2015, 383 sigmoidoscopies were performed in patients with endometriosis. Where mucosal invasion was absent secondary signs (wall rigidity, impression, kinking, pain during the examination, suffusion) were analysed. In endoscopically confirmed cases multidisciplinary surgery was performed, the remaining patients were operated by a gynecologic team only. Results: Endometriosis was endoscopically confirmed in 224 patients (58.49%), 108 of them underwent multidisciplinary operation, the negative 135 cases received gynaecological surgery. Bowel endometriosis was confirmed in 103 out of 108 cases intraoperatively, while in 8 cases of the sigmoidoscopically negative patients bowel infiltration was diagnosed intraoperatively by the gynaecological team. Complete sigmoidoscopy was performed in 43.47% of the cases. Intraluminal endometriosis was found in 4.91%, secondary signs as rigidity in 38.39%, impression in 45.54%, kinking in 57.14%, pain (in cases of examination without narcosis) in 26.06% and suffusion in 3.82% of the cases was found during sigmoidoscopy. Sigmoidoscopic examination has a 92.8% specificity and 96.2% sensitivity in cases of bowel endometriosis. Conclusion: Sigmoidoscopy performed by an experienced gastroenterologist is a highly sensitive examination for the diagnosis of bowel endometriosis. Orv. Hetil., 2017, 158(7), 264–269.
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Graham, John R. "Flexible sigmoidoscopy." Medical Journal of Australia 165, no. 1 (July 1996): 55. http://dx.doi.org/10.5694/j.1326-5377.1996.tb124844.x.

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Ashkin, Evan. "Sigmoidoscopy Reimbursement." Annals of Internal Medicine 131, no. 10 (November 16, 1999): 792. http://dx.doi.org/10.7326/0003-4819-131-10-199911160-00024.

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&NA;. "Sigmoidoscopy (Continued)." Nurse Practitioner 24, Supplement (November 1999): 18. http://dx.doi.org/10.1097/00006205-199911001-00113.

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Dissertations / Theses on the topic "Sigmoidoscopy"

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Blom, Johannes. "Aspects of participation in sigmoidoscopy screening for colorectal cancer /." Stockholm, 2007. http://diss.kib.ki.se/2007/978-91-7357-187-6/.

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Cecil, Thomas. "Genetic polymorphisms of the cytochrome P450 2C xenobiotic metabolising enzymes subfamily and predisposition to adenomatous polyps of the colon and rectum." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288448.

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Doria-Rose, Vincent Paul. "The incidence of colorectal cancer following screening by flexible sigmoidoscopy : implications for screening interval /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/10951.

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Kerrison, Robert Stephen. "Promoting uptake of flexible sigmoidoscopy 'bowel scope' screening at St Mark's Hospital in London." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10046000/.

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In March 2013, NHS England extended its national bowel cancer screening programme to include once-only flexible sigmoidoscopy (‘bowel scope’) screening for men and women aged 55. Since roll-out of the programme began, uptake has been low and inequitable, with people living in the most deprived areas being the least likely to take part in screening. This thesis examines uptake at St Mark’s Hospital, a centre which serves a socioeconomically diverse population with below average uptake, and goes on to describe the development and evaluation of an intervention targeted at those who do not participate. Study 1 identifies and describes possible targets for intervention. The results of the study informed the design of a self-referral reminder letter and theory-based information leaflet to be sent to individuals who did not attend bowel scope screening (BSS) within one year of their original invitation. Study 2 describes a test of the intervention’s feasibility, with results demonstrating its potential to increase BSS uptake. Study 3 examines the effectiveness of the reminder letter and theory-based leaflet by comparing uptake against appropriate controls, namely: no reminder or the designed reminder letter sent with the standard information booklet used by the National Health Service. The results of the randomised controlled trial (RCT) demonstrate that uptake was significantly higher among the two groups receiving the reminder, with the group receiving the theory-based leaflet showing the highest rate of uptake. In Study 4, the materials were re-sent to those who had not attended BSS within 24 months of their initial invitation. The results of this extension to the RCT corroborate the outcome of the first reminder. This series of studies demonstrates the usefulness of additional reminders in the BSS programme, which is discussed alongside other implications for policy in the discussion of this thesis.
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Kwan, Tsui-ying, and 關翠瑩. "Are colonoscopy and sigmoidoscopy effective in reducing the mortality and incidence of colorectal cancer in colorectal cancer screening?" Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206954.

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BACKGROUND: Colorectal cancer is usually asymptomatic until later stage and the 5-year survival for stage III or IV are 68% and 10 % because of delayed diagnosis. Worldwide, it is the 4th leading cause of death among cancers which accounted for 694,000 deaths in 2012. While healthy diet and lifestyle helps prevent colorectal cancer, increased surveillance through screening has been suggested to attribute to the decreasing trend of colorectal cancer incidence in the United States in the past decade. Identifying what type of colorectal cancer screening methods is more effective is of public health relevance to Hong Kong where colorectal cancer ranks the top leading cancer. OBJECTIVES: To conduct a systematically review on current literatures to examine whether endoscopy screening by flexible sigmoidoscopy or colonoscopy is more effective for reducing the mortality and incidence of colorectal cancer than no screening as many colorectal cancers arise from adenomatous polyps, which polypectomy is hypothesized to be protective. Meanwhile, different countries adopt different kinds of colorectal cancer screening modalities, but yet, there is no agreement for the types of screening. METHODS: Four databases, Medline (OVIDSP), Pubmed, CINAHL plus (EBSCOhost), Embase (OVIDSP) were used to search for published journals. Reference list of the identified articles were screened for more relevant studies. RESULTS: A total of 8 studies were included in this systematic review. There were only 2 randomized controlled trials (RCTs) on screening for colorectal cancer using flexible sigmoidoscopy in asymptomatic and average-risk people and no RCT was found for colonoscopy. Based on the studies reviewed, findings were inconsistent on whether endoscopy screening is more effective in reducing overall colorectal cancer incidence and mortality than no screening. Endoscopy screening, either sigmoidoscopy or colonoscopy was associated with lower incidence of distal colorectal cancer. CONCLUSION: Screening by flexible sigmoidoscopy or colonoscopy is not clearly associated with lower overall colorectal cancer risks based on current systematic review. Randomized controlled trials or retrospective cohorts are required to clarify the effectiveness of endoscopy screening before considering the implementation of population-wide colorectal cancer screening.
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Dias, Ana Paula Telles Pires. "Neoplasias colorretais: aspectos epidemiológicos, endoscópicos e anatomopatológicos - estudo de série de casos." Universidade Federal de Juiz de Fora (UFJF), 2008. https://repositorio.ufjf.br/jspui/handle/ufjf/2873.

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O carcinoma colorretal (CCR) é a segunda neoplasia mais freqüente na população mundial. A alta incidência do CCR e a diferença nos resultados do tratamento desta neoplasia, de acordo com o estádio da doença, justificam os esforços para o rastreamento, prevenção e detecção precoce. Objetiva-se neste estudo descrever os aspectos: epidemiológicos, endoscópicos e anatomopatológicos das neoplasias colorretais em uma série de casos e avaliar o papel da colonoscopia na prevenção do CCR. Trata-se de estudo descritivo de série de casos atendida em centro especializado em endoscopia digestiva, no período de janeiro de 2002 a dezembro de 2006. Foram coletados dados sobre 1.962 colonoscopias realizadas em 1.491 indivíduos e, em 492 (33%) foram identificadas lesões polipóides. 408 indivíduos foram considerados para fins de análise. Na série de casos 70% dos indivíduos eram assintomáticos. A prevalência de neoplasias colorretais foi de 50% (60/120) em homens e de 42,4% em mulheres (122/288). As neoplasias foram detectadas em 138 dos 287 indivíduos (48%), com 50 anos ou mais, e a sua prevalência foi significantemente maior do que naqueles com menos de 50 anos (44/121) 36,3% (p=0,01). Verificou-se que 58,9% dos indivíduos com neoplasia e neoplasia avançada apresentavam história familiar positiva para câncer de mama, útero, ovário e/ou colorretal. Nos 408 indivíduos, foram realizadas 679 colonoscopias, com retirada de 959 lesões polipóides; destas, 463 (48,3%) eram neoplásicas, incluindo 13(1,35%) adenocarcinomas. Nas lesões menores que 5 mm, foi evidenciado displasia em 36% (346/959). No colon proximal, 21% (85/408) dos indivíduos apresentavam lesões neoplásicas e 2% (8/408), neoplasias avançadas, incluindo seis casos de adenocarcinoma sem qualquer evidência de lesão em colon distal. Dentre os 232 indivíduos que apresentavam lesões neoplásicas (benignas e ou avançadas), 130 (56%) apresentavam apenas lesões em colon proximal. Se o rastreamento fosse realizado apenas com a retossigmoidoscopia, a perda diagnóstica de lesões neoplásicas benignas seria de 76(62,3%) nas mulheres e 29(48,3%) nos homens. Em relação ao adenocarcinoma, a perda diagnóstica seria de 50% para ambos os sexos. Neoplasias colorretais são comuns em indivíduos assintomáticos. Sexo masculino, idade avançada e história familiar para câncer são fatores de risco para a detecção de lesões. A colonoscopia consiste em método eficaz de rastreamento para o CCR, a remoção de lesões neoplásicas colorretais interfere diretamente na história natural desta forma de câncer.
The colorectal carcinoma (CRC) is the second most frequent cancer in the world population. The high incidence of CRC and the difference in the results of the treatment of cancer, according to the stage of disease justify the efforts for screening, prevention and early detection. The objective of this study was to describe the epidemiological, endoscopic and pathological of polypoid lesions and colorectal cancers and assess the role of colonoscopy in preventing the CRC. This is a descriptive study of number of cases addressed in centre specializing in gastrointestinal endoscopy. In the period January 2002 to December 2006, colonoscopies were performed in 1962 and 1,491 individuals in 492 (33%) of these have been identified polypoid lesions; 408 individuals were considered for analysis. The data were included and analyzed in the Epi Info-2000. In a series of cases studied, 60% of the subjects were asymptomatic. The prevalence of colorectal cancers was 50% (60/120) in men and 42.4% in women (122/288). The cancers were detected on 138 of the 287 individuals (48%) with 50 years or more, and their prevalence was significantly higher than those with less than 50 years (44/121) 36.3% (p = 0.01). It was found that 58.9% of individuals with advanced cancer and cancer had positive family history for cancer of the breast, uterus, ovary, or colorectal. In 408 individuals, 679 colonoscopies were performed, with withdrawal of 959 polypoid lesions; these, 463 (48.3%) were neoplasms, included 13 adenocarcinomas. In lesions smaller than 5 mm, was shown dysplasia in 36% (346/959). In the proximal colon, 21% (85/408) of the subjects had neoplastic lesions in 2% (8 / 408), advanced malignancies, including six cases of adenocarcinoma without any evidence of damage in distal colon. The indication of colonoscopy only by the presence of lesions in the distal colon is controversial. Among the 232 individuals who had neoplastic lesions (benign, or advanced), 130 (56%) had only injuries in proximal colon. If the screening was done only with the retossigmoidoscopy, loss diagnosis of benign neoplastic lesions would be 76 (62.3%) in women and 29 (48.3%) in men. Regarding adenocarcinoma, the loss would be diagnostic of 50% for both sexes. Colorectal neoplasms are common even in asymptomatic subjects. Male, age and family history for cancer are risk factors for the detection of lesions. A colonoscopy is the most effective method of screening for the CRC, indicated for all individuals over 50 years old because, by identifying and removing neoplastic lesions, the colonoscopist have the ability to interfere directly in the natural history of this form of cancer.
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Stevenson, Christopher Eric, and Chris Stevenson@aihw gov au. "A microsimulation study of the benefits and costs of screening for colorectal cancer." The Australian National University. National Centre for Epidemiology and Population Health, 2001. http://thesis.anu.edu.au./public/adt-ANU20040611.162207.

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This thesis examines the benefits and costs of screening for colorectal cancer in the context of an organised population screening programme. It uses microsimulation modelling to derive an optimally cost-effective screening protocol for various combinations of the available screening tests. ¶ First a mathematical model for the natural history of colorectal cancer is derived, based on analyses of Australian population and hospital-based cancer registries combined with data from published studies. Then a model for population based screening is derived based mainly on data from published screening studies, including the four major published randomised controlled trials of faecal occult blood test (FOBT) screening. These two models are used to simulate the application of a screening programme to the Australian population. The simulations are applied to a period of 40 years following 1990 (the study’s base year), with both costs and benefits discounted back to the base year at an annual rate of 3%.¶ The models are applied to simulating a population screening programme based on FOBT with a colonoscopy follow up of positive tests. This simulation suggests that the optimal application of such a programme would be to offer annual screening to people aged 50 to 84 years. Such a programme would lead to a cumulative fall in years of life lost to colorectal cancer (YLL) of 28.5% at a cost per year of life saved (YLS) of $8,987. These costs and benefits are consistent with those arising from other currently funded health interventions. They are also consistent with the cost per YLS which Australian governments appear willing to pay for health interventions when justified on the basis of cost-effectiveness. The fall in colorectal cancer deaths from this screening programme should be first detectable by a national monitoring system after around three years of screening. However the full benefits from screening would not be realised before around 30 years of screening.¶ These simulations are based on the standard guaiac FOBT, but the results suggest that significant cost-effective gains could be made by using the newer immunochemical FOBT. Further cost-effect gains could be made by offering sigmoidoscopy every five years in addition to annual FOBT.¶ The models are then applied to simulating population screening programmes using colonoscopy and sigmoidoscopy as primary screening tools. Offering colonoscopy every ten years to all people aged from 45 to 85 leads to an overall fall in cumulative YLL of 37.6%, at a cost of $15,585 per YLS. Offering sigmoidoscopy every three years to all people aged 40 to 85 leads to an overall fall in cumulative YLL of 29.1%, at a cost of $4,862 per YLS. Both of these cost and benefit results are also consistent with the cost per YLS which Australian governments appear willing to pay. The fall in deaths with colonoscopy screening would also be detectable after three years of screening but the fall with sigmoidoscopy screening would not be detectable until after six years of screening. Sigmoidoscopy would need around 35 years of screening to reach its potential gains while colonoscopy screening would not reach its full potential during the 40 year screening period.¶ Finally the models are applied to targeting people at higher risk of cancer. The results show that offering colonoscopy every five years to people at higher risk because of a family history of colorectal cancer is a cost-effective addition to the annual FOBT screening programme.¶ An earlier version of chapter two of this thesis has been published as Stevenson CE 1995. Statistical models for cancer screening. Statistical Methods in Medical Research; 4: 19–23.¶ An expanded version of chapter two, along with parts of chapter one, has been published as Stevenson CE 1998. Models of screening. In: Encyclopedia of Biostatistics. Armitage P, Colton T, eds. John Wiley and Sons Ltd, pp 3999–4022.
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Choi, JungHun. "Design and Development of a Minimally Invasive Endoscope: Highly Flexible Stem with Large Deflection and Stiffenable Exoskeleton Structure." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/26218.

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Colonoscopy provides a minimally invasive tool for examining and treating the colon without surgery, but current endoscope designs still cause a degree of pain and injury to the colon wall. The most common colonoscopies are long tubes inserted through the rectum, with locomotion actuators, fiber optic lights, cameras, and biopsy tools on the distal end. The stiffness required to support these tools makes it difficult for the scopes to navigate the twisted path of the colon without damaging the inside wall of the colon or distorting its shape. In addition, little is known about how sharp and forceful endoscopes can be without accidentally cutting into tissue during navigation. In order to solve the requirements of stiffness (to support tools) and flexibility (to navigate turns), we expanded on a design by Zehel et al. [49], who proposed surrounding a flexible endoscope with an external exoskeleton structure, with controllable stiffness. The exoskeleton structure is comprised of rigid, articulating tubular units, which are stiffened or relaxed by four control cables. The stiffened or locked exoskeleton structure aids navigation and provides stability for the endoscope when it protrudes beyond the exoskeleton structure for examination and procedures. This research determined the design requirements of such an exoskeleton structure and simulated its behavior in a sigmoid colon model. To predict just how pointed an endoscope can be without damaging tissue under a given force, we extrapolated a strength model of the descending colon from published stress-strain curves of human colon tissue. Next we analyzed how friction, cable forces, and unit angles interact to hold the exoskeleton structure in a locked position. By creating two- and three-dimensional models of the exoskeleton structure, we optimized the dimensions of the units of an exoskeleton structure (diameter, thickness, and leg angle) and cable holders ( cable attachment location) to achieve the turns of the sigmoid colon, while still remaining lockable. Models also predicted the loss of force over the exoskeleton structure due to curving, further determining the required cable angles and friction between units. Finally we determined how the stiffness of the endoscope stem affected locking ability and wear inside the exoskeleton structure.
Ph. D.
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Zea, Vilca Luis Felipe. "Incidencia de lesiones premalignas y malignas de ano, recto y sigmoides evaluados con el examen de proctosigmoidoscopio en el Hospital María Auxiliadora 2009-2012." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2014. https://hdl.handle.net/20.500.12672/13292.

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En el presente estudio incidencia de lesiones pre malignas y malignas de ano, recto y sigmoides evaluados con el examen de proctosigmoidoscopio en el Hospital María Auxiliadora 2009-2012, no se encuentro diferencia importante entre los dos sexo; sin embargo se encontró diferencia de mayor predisposición en el sexo masculino para el examen de proctosigmoidoscopia. Las enfermedades colorectales determinadas por proctosimodoscopia. En todas las edades fueron aceptadas por todos los pacientes programados y se determinó, que los que más acuden es el grupo etareo mayores de 40 años, y los menos que acuden son las edades menores de 10 años. Se determinó que en el año 2009 la mayor patología presentada a la proctoscopia son los hemorroides de I grado con 19.04 % en hombres y 15.38 % en mujeres y los de menor ulcera rectal; son mayores en el sexo masculino. Se determina en el 2010 que la mayor patología presentada al examen de proctoscopia son los hemorroides de I grado. En un 31.11 % en hombres y 34.00% en mujeres y menor ulcera rectal; se logró determinar de que son frecuentes en el sexo femenino Se determina en el 2011 la mayor patología presentada al examen de proctoscopia es los hemorroides de I grado, en hombres en un 34.76 % y en mujeres 37.79 % y menor ulcera rectal; se logró determinar de que son frecuentes en el sexo femenino. La mayor patología presentada en el 2012 al examen de proctoscopia son los hemorroides externos, en hombres 12.00% y en mujeres 20.20% y menor son casos de ulcera rectal; más frecuentes en el sexo masculino. En la presenté serie se determinó que la las lesiones proliferativas (cáncer recto) se presentaron en el ano del 2012 con 13 casos, más frecuente en el sexo masculino con el 61.53 %. El presente estudio determinó que los que acuden para la realización de proctosigmoidoscopia son los pacientes que presenta dolor anal en un 34.68% seguidos de rectorragia con un 24.38% y los menos frecuentes por pérdida de peso con un 2.7%. La American Cancer Society reconoce al cáncer colorrectal como la segunda causa de muerte debido a cáncer en U.S.A.; aproximadamente, se produce actualmente 56,000 muertes y 150,000 nuevos casos/año. El riesgo en la vida de presentar un cáncer colorrectal es 6% en mayores de 50 años y aumenta con cada década, siendo más frecuente en hombre que en mujeres y están asociados a factores de riesgo, como son la presencia de pólipos en el colon, antecedentes familiares de cáncer, enfermedades inflamatorias intestinal crónicas y dieta y estilo de vida entre otros.
Trabajo académico
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Stevenson, Christopher Eric. "A microsimulation study of the benefits and costs of screening for colorectal cancer." Phd thesis, 2001. http://hdl.handle.net/1885/48198.

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This thesis examines the benefits and costs of screening for colorectal cancer in the context of an organised population screening programme. It uses microsimulation modelling to derive an optimally cost-effective screening protocol for various combinations of the available screening tests. ¶ First a mathematical model for the natural history of colorectal cancer is derived, based on analyses of Australian population and hospital-based cancer registries combined with data from published studies. Then a model for population based screening is derived based mainly on data from published screening studies, including the four major published randomised controlled trials of faecal occult blood test (FOBT) screening. These two models are used to simulate the application of a screening programme to the Australian population. The simulations are applied to a period of 40 years following 1990 (the study’s base year), with both costs and benefits discounted back to the base year at an annual rate of 3%. ¶ ...
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Books on the topic "Sigmoidoscopy"

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National Institute of Diabetes and Digestive and Kidney Diseases (U.S.), ed. Sigmoidoscopia flexible: Flexible sigmoidoscopy. Bethesda, MD: U.S. Dept. of Health and Human Services, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, 2010.

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S, Lewis Blair, ed. Flexible sigmoidoscopy. Cambridge, Mass., USA: Blackwell Science, 1996.

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B, Keeffe Emmet, and Melnyk Clifford S, eds. Flexible sigmoidoscopy. Orlando: Grune & Stratton, 1985.

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Paul, Basuk, and Wayne Jerome D. 1932-, eds. Practical fexible sigmoidoscopy. New York: Igaku-Shoin, 1995.

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A, Lehman Glen, and Schapiro Melvin, eds. Flexible sigmoidoscopy: Techniques and utilization. Baltimore: Williams & Wilkins, 1990.

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K, Dutta Sudhir, and Kowalewski Edward J, eds. Flexible sigmoidoscopy for primary care physicians. New York: Liss, 1987.

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Miller, Brigitte E. Atlas of Sigmoidoscopy and Cystoscopy. Taylor & Francis Group, 2001.

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Schapiro, Melvin, and Glen A. Lehman. Flexible Sigmoidoscopy: Techniques and Utilization. Williams & Wilkins, 1990.

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Dutta, Sudhir K., and Edward J. Kowalewski. Flexible Sigmoidoscopy for Primary Care Physicians. Wiley & Sons, Incorporated, John, 1987.

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Atlas of Rectoscopy and Coloscopy. Springer, 2011.

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Book chapters on the topic "Sigmoidoscopy"

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Jensen, Lindsay G., Loren K. Mell, Christin A. Knowlton, Michelle Kolton Mackay, Filip T. Troicki, Jaganmohan Poli, Edward J. Gracely, et al. "Sigmoidoscopy." In Encyclopedia of Radiation Oncology, 789. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-540-85516-3_213.

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Kashani, John, Richard D. Shih, Thomas H. Cogbill, David H. Jang, Lewis S. Nelson, Mitchell M. Levy, Margaret M. Parker, et al. "Sigmoidoscopy." In Encyclopedia of Intensive Care Medicine, 2077. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_2198.

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Guerrieri, Patrizia, Paolo Montemaggi, Bradley J. Huth, Claus Roedel, Bradley J. Huth, Stephan Mose, Hedvig Hricak, et al. "Flexible Sigmoidoscopy." In Encyclopedia of Radiation Oncology, 285. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-540-85516-3_1125.

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Coller, John A. "Flexible Sigmoidoscopy." In The SAGES Manual, 534–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-88454-2_66.

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Simon, Irwin B. "Therapeutic Flexible Sigmoidoscopy." In The SAGES Manual, 543–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-88454-2_67.

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Coller, John A. "44. Flexible Sigmoidoscopy." In The SAGES Manual, 581–95. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-2344-7_44.

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Rubin, Peter H., Steven Naymagon, Christopher B. Williams, and Jerome D. Waye. "Colonoscopy and Flexible Sigmoidoscopy." In Yamada' s Textbook of Gastroenterology, 2569–81. Oxford, UK: John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781118512074.ch134.

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Rubin, Peter H., Steven Naymagon, Christopher B. Williams, and Jerome D. Waye. "Colonoscopy and Flexible Sigmoidoscopy." In Yamada's Atlas of Gastroenterology, 626–33. Oxford, UK: John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781118512104.ch75.

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Vitone, Louis J., Peter A. Davis, and David J. Corless. "Sigmoidoscopy, cystoscopy, and stenting." In An Atlas of Gynecologic Oncology, 55–59. Fourth edition. | Boca Raton, FL: CRC Press/Taylor & Francis Group, [2018]: CRC Press, 2018. http://dx.doi.org/10.1201/9781351141680-6.

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Steven, Mairi, and Paraic McGrogan. "E3 Proctoscopy and Rigid Sigmoidoscopy." In Basic Techniques in Pediatric Surgery, 252–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-20641-2_74.

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Conference papers on the topic "Sigmoidoscopy"

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Lee, J., JI Lee, and YD Kim. "CAN SIGMOIDOSCOPY REPLACE COLONOSCOPY WHEN EVALUATING PATIENTS WITH ULCERATIVE COLITIS?" In ESGE Days 2019. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1681805.

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Abusrewil, Anwar Suleiman, Mumtaz Hayat, Heather Dixon, Karen Rowell, and David Nylander. "PTH-002 Colonoscopy after bowelscope (BS) flexible sigmoidoscopy (FS) – urgent or routine?" In British Society of Gastroenterology, Annual General Meeting, 4–7 June 2018, Abstracts. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2018. http://dx.doi.org/10.1136/gutjnl-2018-bsgabstracts.24.

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Robertson, Alexander. "P322 The diagnostic yield in young initial non-attenders for flexible sigmoidoscopy." In Abstracts of the BSG Annual Meeting, 20–23 June 2022. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2022. http://dx.doi.org/10.1136/gutjnl-2022-bsg.373.

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Fakhrul-Aldeen, Mohammed, Mark Cartmell, and Byron Theron. "P322 Is there still a place for flexible sigmoidoscopy in the ‘FIT’ era?" In Abstracts of the BSG Campus, 21–29 January 2021. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2021. http://dx.doi.org/10.1136/gutjnl-2020-bsgcampus.396.

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Johal, Harleen, Karen Hartery, Vikrant Kale, Vincent Cheung, Ioannis Koutsounis, Colin Ferrett, and Adam Bailey. "PTH-031 Is flexible sigmoidoscopy in the setting of normal computer tomographic colonography necessary?" In British Society of Gastroenterology Annual Meeting, 17–20 June 2019, Abstracts. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2019. http://dx.doi.org/10.1136/gutjnl-2019-bsgabstracts.56.

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Paraoan, Marius, Santosh Loganathan, Gautam Kumar, and Amital Singh. "P312 Intraoperative assessment of colorectal anastomoses: a comparison of flexible endoscopy versus rigid sigmoidoscopy." In Abstracts of the BSG Campus, 21–29 January 2021. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2021. http://dx.doi.org/10.1136/gutjnl-2020-bsgcampus.386.

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Trambadia, Smit. "Blind Sigmoidoscopy and Colonoscopy image restoration using Shock filter with a quality based hybrid algorithms." In 2015 International Conference on Innovations in Information,Embedded and Communication Systems (ICIIECS). IEEE, 2015. http://dx.doi.org/10.1109/iciiecs.2015.7193138.

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Rutter, M., Z. Hoare, R. Evans, C. Von Wagner, T. Larkin, L. Spencer, E. Holmes, et al. "O3 Water-assisted sigmoidoscopy in NHS bowel scope screening: the wash multicentre randomised controlled trial." In Abstracts of the BSG Campus, 21–29 January 2021. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2021. http://dx.doi.org/10.1136/gutjnl-2020-bsgcampus.3.

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Mohanan, Vikram, and Ajay Verma. "PTH-96 Colorectal cancer diagnosed at sigmoidoscopy, is colonoscopy necessary to assess for synchronous cancer?" In Abstracts of the BSG Annual Meeting, 8–12 November 2021. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2021. http://dx.doi.org/10.1136/gutjnl-2021-bsg.299.

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Patel, Mehul, Ezgi Ozcan, Aria Khani, and Kalpesh Besherdas. "PTU-126 Is there any role for flexible sigmoidoscopy for inpatients with overt lower gastrointestinal bleeding?" In British Society of Gastroenterology, Annual General Meeting, 4–7 June 2018, Abstracts. BMJ Publishing Group Ltd and British Society of Gastroenterology, 2018. http://dx.doi.org/10.1136/gutjnl-2018-bsgabstracts.504.

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