View clinical trials related to Coronary Artery Bypass Graft.
Filter by:Frail Veterans are at increased risk for poor surgical outcomes, and as the Veteran population grows older and more frail, there is a critical need to identify effective strategies for reducing surgical risks for these patients. Prior research shows that inter-disciplinary rehabilitation strategies deployed after surgery enhance recovery and improve outcomes by building strength and improving nutrition. The investigators believe that similar improvements may be obtained by using similar interventions before surgery to "prehabilitate" patients' capacity to tolerate the stress of surgery. The proposed research will examine the feasibility of a new, home-based prehabilitation intervention aimed at improving surgical outcomes after cardiothoracic surgery through preoperative exercise training and nutritional supplementation. Findings from the study will inform the design of a larger randomized controlled trial of the prehabilitation intervention. If proven effective, prehabilitation could benefit as many as 42,000 frail Veterans who are scheduled for major elective surgery each year.
In this study, the investigators propose to investigate a novel technique for fluid responsiveness prediction. It is based on the occurrence of an extra systole, which induces a preload variation: Extra systoles are comprised by, first, the premature/ectopic beat with decreased cardiac preload, then, the post-ectopic beat with moderately increased preload. Consequently, the post ectopic beat is associated with a Frank-Starling curve right shift but is otherwise a normal sinus beat. As such, the post-ectopic beat elucidates and predicts the hemodynamic effect of increasing preload, i.e. giving fluids
The aim of this study is to determine the prevalence of diabetes and non-diabetic glucose metabolism anomalies (glucose intolerance, non-diabetic fasting hyperglycaemia in patients about to undergo coronary artery bypass grafting (CABG). In addition, the effect of these anomalies on post CABG morbi/mortality in the short term will be evaluated.
The purposes of this study are: (1) to compare the body composition, physical activity, physical function, and quality of life between patients with and without CKD after CABG; and (2) to analyze the relationships among body composition, physical activity, and physical function in this population. It is expected that patients after CABG with CKD have the worse body composition, physical function, and quality of life than patients after CABG without CKD; and patients with higher physical activity levels have the better body composition, physical function, and quality of life.
The aim of the present study is to compare the antiarrhythmic and myocardial protective effect between lidocaine, dexmedetomidine, and their combined infusion in subjects undergoing coronary artery bypass graft.
The use of platelet aggregation inhibitors, including aspirin and clopidogrel, has become a standard management strategy for patients with acute coronary syndrome. On this background, an increasing percentage of patients presenting for surgical coronary revascularization is the subject to irreversible platelet inhibition. Tranexamic acid is a widely used antifibrinolytic agent, and is a promising substitute for aprotinin when the latter has been suspended in 2007.The release of plasmin during CPB activates fibrinolysis and may contribute to platelet dysfunction. Pharmacological inhibition of the fibrinolytic system may therefore ameliorate platelet dysfunction and fibrinolysis after CPB and decrease postoperative bleeding. Tranexamic acid prevents plasmin formation and inhibits fibrinolysis. Many studies and meta-analyses have shown a reduction in postoperative bleeding and transfusion requirements of this antifibrinolytic drug in cardium revascularization surgery. Unfortunately the preoperative antiplatelet therapy was either neglected or obscure. Few studies specify the time between the last clopidogrel ingestion and surgery.Several studies were keen on the blood loss and allogeneic transfusion in patients who received their last clopidogrel or asprin within 7 days prior to coronary artery bypass grafting. Concerning the secession of aprotinin and the increasing proportion of patients with persistence on clopidogrel until their surgery, evolutional work is expected, especially in the eastern population. The purpose of this study is to assess the effect of tranexamic acid in patients with clopidogrel and asprin ingestion less than 7 days prior to surgery. The working hypothesis is that tranexamic acid would reduce bleeding and transfusion requirements in this specific population of patients.
The main purposes of this study are: (1) to investigate the difference of the physical fitness, and quality of life (QOL) among different physical activity levels in post-coronary artery bypass graft (CABG) patients; (2) to analyze the relationships between physical activity and physical fitness and QOL in this population. The investigators predict physical activity and physical fitness remain limited in patients after CABG, and patients with higher physical activity levels will have higher QOL and physical fitness.
We are trying to investigate whether intraoperative dexmedetomidine infusion could decrease the incidence of intraoperative hypokalemia and arrhythmia, and myocardial injury in patients undergoing off-pump coronary artery bypass graft, and trying compare these effects with those of remifentanil infusion.
The purpose of this study is to demonstrate that periprocedural infusion of escalating doses of MDCO-2010 is safe and tolerated in patients undergoing elective CABG surgery, to characterize the single dose pharmacokinetics of MDCO-2010, to investigate the effect of MDCO-2010 on pharmacodynamics (biomarkers of fibrinolysis and coagulation parameters), and to investigate the effect on exploratory clinical endpoints of bleeding, transfusion requirements and reexploration.
The purpose of this study is to built the standard of Chinese Traditional Medicine test for Post percutaneous coronary artery intervention and coronary artery bypass graft，also for acute coronary syndrome，according to the multi－site、random large sample test.