View clinical trials related to Bleeding.
Filter by:Study Objective is to correlate the results of preoperative platelet mapping derived from modified TEG with clinically significant postoperative bleeding and consumption of blood products.
Cardiac surgery is bleeding requiring transfusion surgery . The haemorrhagic is related to the need to use high doses of anticoagulants to prevent thrombosis of blood . Moreover, this type of surgery is platelets and coagulation factors consumming despite conducting a thorough anticoagulation. All these changes contribute to increase the need for transfusions during heart surgery. The main objective of this study is to compare the need for transfusions in patients suffering from bleeding complications after cardiac surgery with a therapeutic algorithm based on the use of ROTEM ® versus standard tests based solely on standard laboratory tests. 100 pateinst (50 in each arm) should be included in this trial.
The aim of the study is to compare the outcomes of trans-catheter arterial embolization (TAE) and surgery as salvage therapy of peptic ulcer bleeding after failed endoscopic therapy.
The purpose of this study is to determine the effect of clopidogrel or aspirin reactivity as measured by a point-of-care platelet function assay on thrombotic or bleeding events after percutaneous coronary intervention (PCI) with drug eluting or bare metal stent. Methods: Platelet reactivity on clopidogrel and aspirin therapy is measured before PCI with VerifyNow (Accumetrics Inc.,San Diego, CA, USA) P2Y12 or aspirin assay respectively in 1000 consecutive patients from 20 centers in France undergoing coronary angioplasty with stent. Exclusion criteria are: Acute myocardial infarction, treatment with vitamin K antagonists and the use of antiGP2b3a before PCI. All patients are pre-treated with clopidogrel and aspirin. Non-response to aspirin or clopidogrel is determined according to the result of the VerifyNow assay (cut off : < 15 % for P2Y12 and > 550 ARU for aspirin). The primary end point is the occurrence of definite or probable stent thrombosis (ARC definition) and the secondary end-points include global and cardio-vascular mortality, non fatal myocardial infarction and major bleeding. A clinical evaluation is scheduled at discharge and by telephone contact at one month and one year.
This is a prospective, randomized trial to see in patients undergoing coronary artery bypass grafting and endoscopically-harvested greater saphenous vein, if using FloSeal Matrix in the endoscopically-harvested saphenous vein wound bed decreases bleeding and complications.
In unselected cirrhotic patients with acute portal hypertension-related bleeding to compare the effectiveness in control of bleeding, mortality rate, duration of life, quality of life, and economic costs of two widely used treatment measures: (1) emergency transjugular intrahepatic portal-systemic shunt (TIPS), and (2) emergency portacaval shunt.
This is a randomized, blinded, prospective study that will investigate the potential benefit of tranexamic acid to reduce the intraoperative bleeding and blood transfusions in pediatric patients undergoing craniofacial surgeries.
The study was designed to evaluate the efficacy an adjuvant use of standard dose or high dose of proton pump inhibitor after combined endoscopic hemostasis therapy.
This study will examine the combined effects of a continuous oral contraceptive (OC) regimen with supplemental frovatriptan therapy on headache severity and occurrence in subjects with documented Menstrually Associated Migraines (MAM). The subjects enrolling in the study will have cyclic menses either due to spontaneous ovulation or use of cyclic hormonal contraception (pill, patch, or ring). Enrolled subjects will start a continuous OC regimen following two baseline menstrual cycles. If breakthrough bleeding/spotting (BTB/BTS) occurs, the subject will institute a 4-day hormone-free interval (HFI). In an attempt to prevent/lessen the severity of headache during the HFI, subjects will be randomized to prophylactic administration of a triptan or placebo during this period. If no BTB/BTS occurs after 80 days of continuous pills, the subject will institute a 4-day HFI during which they will be randomized into triptan or placebo groups. The purpose of this research study is to examine the effects of continuous oral contraceptive pills and frovatriptan on headaches that occur around the time of your period. Many woman take continuous oral contraceptive pills (OC) and when OCs are stopped they may get headaches. This study will look if taking frovatriptan around the time of the period will affect the headache, and how it will be affected. Frovatriptan is an FDA approved drug for migraine headaches. This study is a prospective pilot trial.The study will last approximately 35-39 weeks.
Safe use of cardiopulmonary bypass (CPB) requires massive doses of intravenous unfractionated heparin. At end-CPB, residual heparin is neutralized with intravenous injection of protamine sulfate. This prospective, randomized, controlled study will be conducted in 82 voluntary subjects admitted for elective, first intention, cardiac surgery requiring cardiopulmonary bypass. Each will be randomly assigned to one of two groups. The control group will be submitted to a standard protamine infusion of 1.3mg :100U of the total heparin dose given during bypass. The test group will receive an infusion of protamine (over 15 minutes) until activated clotting time (ACT) values (determined every 3 minutes) depict a plateau, sign that the optimal protamine to heparin ratio has been attained. The investigators hypothesize this new in vivo titration method to be as efficient as the standard protocol (adequacy of heparin neutralization, % heparin rebound, bleeding, and transfusion), and potentially safer by its ability to prevent protamine overdose and its deleterious impact on platelet function.15 Principal Objective Evaluate a new in vivo method of titration of protamine sulfate. Secondary Objective Evaluate the impact of this method on the adequacy of heparin neutralization by measuring: 1. platelet count 2. postoperative bleeding 3. transfusion exposure a 4. incidence of heparin rebound