View clinical trials related to Coronary Artery Bypass Grafting.
Filter by:Postoperative cognitive dysfunction (POCD) is a common complication of cardiac surgery, mainly manifested as mental confusion, anxiety, personality change and memory impairment, which seriously affects the quality of life of patients after surgery.Attention should be paid to the protection of neurological function in patients undergoing cardiac surgery during perioperative period.Nicardipine can selectively act on coronary arteries and cerebral vessels, increase coronary artery and cerebral blood flow, relieve coronary heart disease angina pectoris, protect brain tissue.The cerebral protective effect of nicardipine on cardiovascular surgery under CPB deserves further clinical study.About 15-20% of cardiac output (CO) in healthy adults is allocated to the brain , and cerebral blood flow is supplied by bilateral internal carotid artery (ICA) and vertebral artery (VA), among which ICA provides about 70%-80% of cerebral perfusion flow .However, the location of the internal carotid artery is superficial, the anatomical variation is less, and the ultrasonic Doppler technique is portable and simple to measure. It may be of certain clinical value to use the ultrasonic detection technology to quickly evaluate the cerebral perfusion during the perioperative period, and to early detect and avoid the intraoperative brain function injury.
The ischemia/reperfusion (I/R) injury of the myocardium initiates a variety and complex sets of inflammatory reactions that may both exaggerate local injury as well as provoke injury of distant organ function . I/R injuries are the main causes of heart failure, morbidity, and mortality after cardiac surgery such as coronary artery bypass graft (CABG surgery) . The reactive oxygen species are believed to be excessively elevated during coronary artery bypass surgery (CABG) due to compromised free radical scavenging mechanism in the myocardium that can make myocardium highly susceptible to oxidative stress and inflammation and result in reperfusion injury . Melatonin and its metabolites protect against inflammation by regulating several inflammatory cytokines. Additionally, melatonin is a free radical scavenger and an antioxidant agent. the current study is designed to investigate the protective effects of melatonin against myocardial I/R injury in patients undergoing coronary artery bypass grafting (CABG) surgery.
The purpose of this external evaluation is to assess the system functionality and analytical performance of the Saturn Investigational Instrument (next generation VerifyNow instrument) and associated cartridge currently under development. A single test cartridge with multiple assays will be compared with Light Transmittance Aggregometry (LTA) within a clinical setting using blood samples. Analytical performance will be compared between these assays. The outcome of this evaluation will be used to demonstrate baseline performance and support the design and development of the Saturn analyzer and optimization of the associated algorithm.
Ticagrelor-based De-escalation of Dual Antiplatelet Therapy After Coronary Artery Bypass Grafting trial (TOP-CABG trial) is a multicenter, randomized, double-blind, non-inferiority, parallel controlled trial. The aim of TOP-CABG is to investigate whether de-escalated dual antiplatelet therapy (De-DAPT) is non-inferior to dual antiplatelet therapy (DAPT) in efficacy on inhibiting great saphenous vein (SVG) graft occlusion and is superior in reducing bleeding events in patients accepting coronary artery bypassing grafting.
The study seeks to determine the value of CASUS in predicting mortality as compared with APACHE II scoring system among patients undergoing coronary artery bypass grafting.
This project uses concurrent CEA+CABG combined surgery on high-risk patients with severe carotid artery stenosis and severe coronary artery stenosis. After multidisciplinary preoperative evaluation, intraoperative electrophysiological monitoring, and postoperative management standards, compare CEA+CABG combined operations during the same period And the advantages and disadvantages of a single CABG or CEA operation, the purpose is to explore the best surgical treatment plan, establish an interdisciplinary clinical medicine platform centered on patients with heart and cerebrovascular diseases, and develop a standard procedure and The perioperative management is standard, so it is particularly important and naturally has its advanced significance.
After cardiac surgery, there is a high prevalence of postoperative atrial fibrillation (POAF). However, its diagnostic and therapeutic management is poorly codified. This pathology is caused by atrial abnormalities which form the concept of atrial cardiomyopathy. New tools affording to itemize the atrial cardiomyopathy are needed. Indeed, current tools, as echocardiography and electrocardiogram are relevant but only lead to a raw evaluation of the atrial cardiomyopathy. MRI, because of the assessment of the atrial fibrosis by late gadolinium assessment (LGE) and 4D flow magnetic resonance imaging (MRI) could be relevant to specify the atrial cardiomyopathy.
Due to the lack of randomized controlled trials, the best follow-up strategy of asymptomatic patients after coronary artery revascularization is controversial. A systematic screening of silent myocardial ischemia may help prevent a major acute cardiac event. However, systematic screening strategy is costly and there is currently no evidence that repeated revascularization improve survival. Moreover, stress testing per se or additional procedures which can be performed with regard of stress testing results can cause unexpected complications. ARCACHON is a national, multicenter, randomized, open label trial, that will evaluate the non-inferiority of a clinical follow-up as compared to a systematic stress testing strategy after coronary revascularization.
The purpose of this study is to evaluate the stroke volume variation measured by both methods: transpulmonary thermodilution and electrical impedance tomography (EIT), during fluid responsiveness maneuvers and after fluid replacement in the immediate postoperative of coronary artery bypass grafting (CABG) patients. Patients will be hemodinamically monitored with the VolumeView set in combination with EV1000 clinical platform and the display of valuable volumetric parameters (Edwards Lifesciences, California, USA). Simultaneoulsy, patients will be monitored with Enlight Electrical Impedance Tomography (Timpel, São Paulo, Brazil). Hemodynamic data will be assessed at baseline 1, one minute after the passive leg raising maneuver, after PEEP increment, and after 500 mL of Lactated Ringer's (bolus infusion). Blood gases sample will be assessed before and immediatly after the protocol.
This study will be a pragmatic, prospective, single-centre, unit-based cluster crossover, open-label registry trial. The cardiac surgical intensive care unit (CSICU) will be cluster assigned to alternating MAP targets in 6-month blocks in a sequence. Additional sites across Alberta may be added, as necessary.