View clinical trials related to Coronary Artery Bypass.
Filter by:Pleural effusion is a common complication of cardiac surgery. The aim of this study was to determine the prevalence, characteristics and determinants of clinically significant pleural effusions, defined as those requiring therapeutic pleural drainage.
The purpose of this study is to determine whether pretreatment with atorvastatin protects against atrial fibrillation following off-pump coronary artery bypass graft surgery.
The investigators' hypothesis is that restriction of circulating fluids in comparison to a liberal fluid administration policy would lead to a reduction of allogenic red blood cells exposure in patients undergoing cardiopulmonary bypass (CPB) for primary coronary artery bypass graft supported by reinfusion of washed shed blood from thoracic cavities.
In High Thoracic Epidural Anesthesia (HTEA) the use of a local anesthetic (LA) with low cardiac toxicity is crucial as myocardial contractility is often already seriously impaired. The aim of this study is to compare the efficacy, doses and side effects of ropivacaine and levobupivacaine in patients submitted to coronary artery bypass graft with HTEA and general anesthesia. The primary end point is the amount of LA drug required to maintain a VAS < 4 when coughing in the first 24 postoperative hours.
The main purpose of this study is to determine whether intravenous glutamate infusion given in association with surgery for unstable coronary artery disease can protect the heart from myocardial injury, postoperative heart failure and death.
Heart bypass surgery, also known as coronary artery bypass graft (CABG) surgery, creates a detour around the blocked part of a heart artery to restore blood supply to the heart muscle. The saphenous vein, located along the inside of the leg, is commonly used to create the bypass in a CABG surgery. An abnormal increase in the blood clotting protein thrombin may cause the saphenous vein graft to close up and eventually fail. This study will evaluate the relationship between thrombin levels and saphenous vein graft failures in people undergoing a CABG procedure.
For some people who have heart by-pass surgery, the vein that is used to by-pass a blockage will, after some time, become narrowed and possibly blocked. AVI-5126 blocks a gene that is believed to be responsible for the events in the blood vessel that cause this narrowing. Therefore, exposing the vein to AVI-5126 before it is attached to the coronary artery may result in less problems with these vein grafts later on. This study will determine if this procedure is both safe and effective.
The purpose of this study is to determine which pacing mode after coronary artery bypass grafting in patients with reduced left ventricular function is hemodynamically favorable.
Background: Different anaesthetic agents have been shown to have different protective effects upon heart, brain and renal function under ischaemic conditions (oxygen starvation). Cardiopulmonary bypass takes over the work of the heart and the lungs during heart surgery, but oxygenation of vital organs such as the brain and heart may not be perfect, and can produce brain or heart damage as a consequence. Propofol and desflurane are commonly used anaesthetic agents, and there has been recent research to suggest that anaesthetic agents may provide some protection during periods where inadequate oxygenation occurs, with the potential to reduce the degree of organ damage. Both types of anaesthetics are used for cardiac surgery with anaesthetists choosing between them largely on the basis of personal preference. Aim: To determine whether the use of either propofol or desflurane as the primary anaesthetic agent, can lead to differences in postoperative brain function, total morbidity or cost, following coronary artery surgery with cardiopulmonary bypass. Methods: Patients will be recruited by professional research staff and will be randomised into one of two groups (90 in each group). They will receive a standardized technique for anaesthesia, cardiopulmonary bypass and postoperative ICU treatment. The only difference between the 2 groups will be as to which anaesthetic agent they receive during the surgical period, desflurane or propofol. Measurements will involve i) brain function testing before and 3 months after surgery ( a set of 10 verbal or manual tests), ii) incidence of delirium in the immediate postoperative period (a survey form), iii) incidence of total postoperative morbidity and iv) cost of hospital stay. Data collection will be by anaesthesia and research staff and a neuropsychologist will employed for performing the brain function testing. Anticipated timeline: Initial recruitment completed by 15-18 months following trial commencement. Follow up completed 3 month after the last enrolment. Data validation, statistical analysis and manuscript preparation completed by 24 months.
Blood glucose levels increase in response to stress, infection or other conditions faced by patients in the hospital. This occurs commonly among patients with known diabetes, but also among non-diabetic hospitalized patients. Tight glucose control, the maintenance of blood glucose levels within normal limits (80-120 mg/dl), has been shown to improve patient outcomes in the hospital in several settings, mainly among critically ill patients hospitalized in intensive care units. We plan to assess the importance of tight glucose control during open-heart surgery. The prevalence of hyperglycemia (elevated blood glucose) during this operation is high. Hyperglycemia may be associated with increased vulnerability to surgical site infections, neurological damage, cardiac and renal injury. Conversely, tight glucose control may be associated with hypoglycemia (pathologically low glucose levels) that may results in neurological injury. We hypothesize that tight glucose control will improve patient outcomes following surgery.