Dissertations / Theses on the topic 'Tirofiban'
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Mädl, Jennifer. "Sicherheit von Tirofiban beim akuten ischämischen Schlaganfall im klinischen Alltag." kostenfrei, 2009. http://www.opus-bayern.de/uni-regensburg/volltexte/2009/1338/.
Full textHochholzer, Willibald. "Antithrombozytärer Effekt von Abciximab, Tirofiban und Eptifibatide bei Patienten nach koronarer Stentimplantation." [S.l.] : [s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969380003.
Full textSilva, Jose Carlos Faes da. "Estudo da congestão venosa após amputação subtotal de membro de ratos: efeito protetor do alopurinol, vitamina c, tirofiban ou heparina na isquemia secundária." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/5/5132/tde-05062014-154201/.
Full textVenous thrombosis is the main complication of vascular microsurgery an early intervention is mandatory to rescue the flap, with a success rate of only 50% of surgical revisions; microcirculation thrombosis, oxygen free radicals production and edema are the main elements of ischemia/reperfusion (I/R) injury, and protective therapies aim to mitigate these changes. Antioxidants, antiplatelets and anticoagulants are used in different organs to control this injury. In this study, in a partial hind limb amputation model submitted to global ischemia, it was tested the protective effect of Allopurinol, Heparin, Tirofiban or Vitamin C during secondary ischemia after venous congestion. A hundred rats divided in five groups of 20 animals each were operated; after global ischemia of 90 minutes each group was injected into the contra lateral femoral vein one of the following solutions: 1 ml of saline solution NaCl 0,9% - control group (CG); 1ml of Allopurinol 45mg/kg - experimental group 1 (G1); 1ml of Heparin 200 UI/kg - experimental group 2 (G2); 1ml of Tirofiban 50 ug /ml - experimental group 3 (G3); 1ml of Vitamin C 100mg/kg - experimental group 4 (G4). Sixty minutes of limb reperfusion was performed, and a secondary period of limb ischemia started with the clamping of the femoral vein only (limb congestion) which lasted for 90 minutes (secondary ischemia). After that, the vein clamp was removed and a 60 minute reperfusion period was observed; at the end of the second reperfusion period, the right gastrocnemius muscle was removed and fixed in 10% formaldehyde, animals were euthanized with a lethal dose of Pentobarbital. Muscle fibers were scored as uninjured or injured based on the morphology of individual fibers; interstitial edema and bleeding were graded on a four-point scale. The control group had more damaged muscle cells 54.6±10.6% when compared to allopurinol 31.5±13,6%, heparin 24.7±11.7%, tirofiban 24.6±8.6% and Vitamin C 21.3±8.6% all reached statistical significance (p < 0.00 0.029). These comparisons were analysed using ANOVA and post-hoc Tukey. The single use of Allopurinol, Heparin, Tirofiban or Vitamin C showed a protective effect on venous congestion after global ischemia, and Vitamin C was more effective than Allopurinol when compared both antioxidants. When evaluating the edema, only the antioxidants had statistically lower rates than the CG, whilst all drugs reduced the extravasation of red blood cells compared with the control group (p < 0.001)
Joeckle, Hannah. "Der Einfluss des Glykoprotein IIb/IIIa-Antagonisten Tirofiban auf die hyperakute Abstoßungsreaktion von hDAF-transgenen und nicht-transgenen Schweineherzen." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-85613.
Full textJöckle, Hannah. "Der Einfluss des Glykoprotein IIb/IIIa-Antagonisten Tirofiban auf die hyperakute Abstoßungsreaktion von hDAF-transgenen und nicht-transgenen Schweineherzen." kostenfrei, 2008. http://edoc.ub.uni-muenchen.de/8561/.
Full textSchröder, Friederike [Verfasser]. "Effekt der prähospitalen Tirofiban-Applikation bei Patienten mit ST-Hebungsinfarkt auf Infarktgröße und Ventrikelfunktion : magnetresonanztomographische Substudie der OnTIME-Studie / Friederike Schröder." Gießen : Universitätsbibliothek, 2016. http://d-nb.info/1092995854/34.
Full textSukiennik, Judith [Verfasser], Rüdiger J. [Akademischer Betreuer] Seitz, and Ulrich [Akademischer Betreuer] Germing. "Prospektive monozentrische Analyse systemisch lysierter Patienenten mit akutem Hirninfarkt: Kombilyse mit rtPA und Tirofiban / Judith Sukiennik. Gutachter: Ulrich Germing. Betreuer: Rüdiger J. Seitz." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2011. http://d-nb.info/1018504435/34.
Full textGüsmer, Corinna Natascha. "4000 Tirofiban - ein Glykoprotein-IIb-IIIa-Rezeptorantagonist Untersuchungen bei Patienten mit instabiler Angina pectoris und nichttransmuralem Myokardinfarkt in einer randomisierten, doppelblinden und placebokontrollierten Studie /." [S.l.] : [s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=962753513.
Full textMaurel, Blandine. "Resténose intra-stent : évaluation de nouvelles thérapeutiques in vivo et élaboration d’un modèle in vitro hémodynamique." Thesis, Lille 2, 2012. http://www.theses.fr/2012LIL2S038/document.
Full textIn stent restenosis (ISR) is a major complication of endovascular treatment due to an excessive healing of the arterial wall. Drug eluting stents (DES) reduce the rate of ISR but expose to late stent thrombosis, related to a delayed or incomplete healing of the arterial wall, and also to hypersensitivity reactions induced by the polymer. Currently animal models are mandatory to investigate ISR as there is no reliable in vitro model. Nevertheless, these models are often far from human ISR, because of the underlying atherosclerosis process. They are also not suitable for testing DES because several experimentations and multiple samples are required. In this work, we assess the effects of two new therapeutic molecules to reduce ISR, hemin and EP224283, and we developed a new in vitro model of ISR, reproducing a hemodynamic and biological physiological environment. In vivo analysis. In stent restenosis models were stent implantation in rat abdominal aorta or in hypercholesterolemic rabbit iliac arteries. Seven or 28 days after stent implantation, the stented arteries were removed and either frozen for protein analysis or placed in fixative for morphological analysis with optical or electronical microscopy. Animals received hemin intraperitoneally or EP224283 subcutaneously every 48 hours. Control animals received saline. Histomorphological analysis at day 28 revealed that in the hemin treated group, the extent of neointima area was significantly reduced compared to the control group. A 30% decrease was observed in rats and 40% in rabbit. Endothelial coverage in electronic microscopy was similar in hemin-treated rats and rabbit when compared to their controls. The protein analysis in rats revealed that hemin limited the early inflammatory response and cellular mechanisms implicated in VSMC proliferation (ERK1/2 and p21 p27), in VSMC migration (RhoA) and reduce apoptosis. At day 28, EP224283 significantly reduced neointima growth around 20% in rats. Protein analysis revealed that EP224283 reduced vascular smooth muscle cells proliferation pathways: both ERK1/2 and Akt activated form were down-regulated in the treated rats, and p38 activated form were up-regulated. Expression of Ki67 was also reduced in both hemin and EP224283 treated group, indicating a reduced proliferation of vascular cells.Ex vivo experiments. In association with ParisTech, we developed a bioreactor for ex vivo study of ISR, providing physiologic pulsatile flow. This bioreactor will be a major tool in the research on future pro-healing DES. The bioreactor will allow: to perform numerous blood samples; study several stents at the same time; analyze flows and their effects on ISR; work directly with human arteries, collected during organ donation; and reduce the need for animal experimentation. This work demonstrated the significance of two new therapeutic molecules to prevent ISR, hemin and EP224283. Both reduced ISR without stopping the physiological healing of the arterial wall. We developed a bioreactor providing physiological and hemodynamical conditions. It will be a useful tool for the development of new DES. Our perspectives are now to create a new drug eluting stent releasing hemin or EP224283, as well as to validate our novel ex vivo hemodynamic model of ISR, in order to test our new DES in both animal models and ex vivo hemodynamic conditions
Niggemeier, Michael Friedrich. "Diagnostik der Thrombozytenfunktion unter Zusatz des Glykoprotein-IIb/IIIa- Rezeptorantagonisten Tirofiban Vergleich der "Point-of-Care"-Verfahren-Thrombelastographie, Impedanzaggregometrie und "Platelet-Function-Analyser"(PFA-100) bei verschiedenen Tirofibankonzentrationen /." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972391223.
Full textMaurel, Blandine. "Resténose intra-stent : évaluation de nouvelles thérapeutiques in vivo et élaboration d'un modèle in vitro hémodynamique." Phd thesis, Université du Droit et de la Santé - Lille II, 2012. http://tel.archives-ouvertes.fr/tel-00856597.
Full textErhardt, Matthias. "Untersuchung von Veränderungen der Mikrozirkulation in mit Humanblut perfundierten Schweinherzen durch eine hyperakute Abstoßungsreaktion, sowie deren Beeinflussung durch den humanen Komplementregulator hDAF, den GPIIb/ IIIa- Inhibitor Tirofiban und das lösliche αGal-Oligosaccharid GAS 914 mittels fluoreszierender Mikrosphären." Diss., lmu, 2009. http://nbn-resolving.de/urn:nbn:de:bvb:19-99385.
Full textBös, Lena. "Reduktion der Mortalität im 4-Jahres-Follow-up nach Anwendung von Tirofiban bei elektiven perkutanen Koronarinterventionen (TOPSTAR-Studie)." Doctoral thesis, 2010. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-48404.
Full textThe use of glycoprotein IIb/IIIa inhibitors like abciximab, eptifibatide and tirofiban reduces ischemic complications of elective and acute percutaneous coronary revascularisations. Regarding the use of GP IIb/IIIa inhibitors in patients with stable angina undergoing elective PCI, long term follow up has been limited and no data are available regarding the long term effect of tirofiban treatment in those patients. The TOPSTAR trial was a prospective, double blinded, single centre clinical trial that tested the effect of an additional treatment with tirofiban/placebo in 96 patients undergoing elective PCI. After pretreatment with aspirin and clopidogrel, a bolus of the study medication (10 µg/kg KG of either placebo or tirofiban) was administered followed by a continuous infusion for another 18 hours in a dosage of 0,15 µg/kg KG/min. Nine months after succesful PCI a significant reduction of the combined endpoint of death, myocardial infarction and target vessel revascularisation was shown in the tirofiban group (2,0 %) compared to the placebo group (13,04%, p<0,05). The aim of the four-year follow-up of the TOPSTAR trial was to examine the long term benefit of an additional treatment with tirofiban during elective PCI over several years. A total of 96 patients had their long-term follow-up status raised at a minimum of 4,0 years after randomisation (median 4,33 years). The pre-specified endpoint was 1) the all-cause mortality and 2) the combined endpoint of death, myocardial infarction and target vessel revascularisation by intention-to-treat-analysis. The four-year completeness rate was 98,95% (95/96 patients). After four years of follow-up a significant reduction of the primary endpoint and the secondary, combined endpoint was shown in the study group compared to the control group. After a minimum of four years, all cause mortality was 10,87% (5/46 patients) in the placebo group compared to 0% (0/50 patients) in the tirofiban group (p = 0,0171). The combined endpoint was 26,08% (12/46) in the placebo group compared to 8,0% (4/50) in the tirofiban group (hazard ratio [HR] = 3,626; 95% confidence interval [Cl]: 1,246 to 8,983; p = 0,016). The weight-adjusted Kaplan-Meier methodology, used to estimate the probability of death and of the combined endpoint demonstrated an effect of tirofiban during the maximum duration of follow-up. The 4-year follow-up of the TOPSTAR trial showed that an additional treatment with the GP IIb/IIIa inhibitor tirofiban during elective percutaneous coronary interventions could significantly reduce all-cause mortality and the combined endpoint of death, myocardial infarction and target vessel revascularisation over a follow-up period of four years
Mädl, Jennifer [Verfasser]. "Sicherheit von Tirofiban beim akuten ischämischen Schlaganfall im klinischen Alltag / vorgelegt von Jennifer Mädl." 2009. http://d-nb.info/996589252/34.
Full textHochholzer, Willibald [Verfasser]. "Antithrombozytärer Effekt von Abciximab, Tirofiban und Eptifibatide bei Patienten nach koronarer Stentimplantation / Willibald Hochholzer." 2003. http://d-nb.info/969380003/34.
Full textSchuster, Lydia [Verfasser]. "Effekte von Tirofiban auf die Mikrozirkulation, Hämodynamik und den klinischen Verlauf beim akuten Myokardinfarkt / vorgelegt von Lydia Schuster." 2005. http://d-nb.info/981533221/34.
Full textJöckle, Hannah [Verfasser]. "Einfluss des Glykoprotein-IIb-IIIa-Antagonisten Tirofiban auf die hyperakute Abstossungsreaktion von hDAF-transgenen und nicht-transgenen Schweineherzen / vorgelegt von Hannah Jöckle." 2008. http://d-nb.info/989353990/34.
Full textBös, Lena [Verfasser]. "Reduktion der Mortalität im 4-Jahres-follow-up nach Anwendung von Tirofiban bei elektiven perkutanen Koronarinterventionen (TOPSTAR-Studie) / vorgelegt von Lena Bös." 2010. http://d-nb.info/1003533787/34.
Full textGüsmer, Corinna Natascha [Verfasser]. "Tirofiban - ein Glykoprotein-IIb-IIIa-Rezeptorantagonist : Untersuchungen bei Patienten mit instabiler Angina pectoris und nichttransmuralem Myokardinfarkt in einer randomisierten, doppelblinden und placebokontrollierten Studie / vorgelegt von Corinna Natascha Güsmer." 2000. http://d-nb.info/962753513/34.
Full textNiggemeier, Michael Friedrich [Verfasser]. "Diagnostik der Thrombozytenfunktion unter Zusatz des Glykoprotein-IIb/IIIa- Rezeptorantagonisten Tirofiban : Vergleich der "Point-of-Care"-Verfahren-Thrombelastographie, Impedanzaggregometrie und "Platelet-Function-Analyser"(PFA-100) bei verschiedenen Tirofibankonzentrationen / vorgelegt von Michael Friedrich Niggemeier." 2004. http://d-nb.info/972391223/34.
Full textMerten, Constanze [Verfasser]. "Auswirkungen einer adjuvanten Vorbehandlung mit Tirofiban von einer primären perkutanen Koronarintervention mit obligater Implantation eines koronaren Stents bei akutem ST-Hebungsinfarkt : eine prospektive Untersuchung der linksventrikulären Funktion, der Infarktgröße und der myokardialen Perfusion mittels kontrastverstärkter kardialer Magnetresonanztomographie / vorgelegt von Constanze Merten." 2006. http://d-nb.info/985022132/34.
Full textErhardt, Matthias [Verfasser]. "Untersuchung von Veränderungen der Mikrozirkulation in mit Humanblut perfundierten Schweinherzen durch eine hyperakute Abstoßungsreaktion, sowie deren Beeinflussung durch den humanen Komplementregulator hDAF, den GPIIb-IIIa-Inhibitor Tirofiban und das lösliche αGal-Oligosaccharid [Alpha-Gal-Oligosaccharid] GAS 914 mittels fluoreszierender Mikrosphären / vorgelegt von Matthias Erhardt." 2009. http://d-nb.info/99404562X/34.
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