View clinical trials related to Ischemia.
Filter by:Induction of autologous angiogenesis in patients with critical limb ischemia using platelet lysate.
Gastric conduit ischemia or anastomotic breakdown after esophagectomy with cervical esophagogastrostomy often cause severe complications, such as leakage, necrotic organs, and strictures. Thus, the purpose of this study is the safety and efficacy of endoscopic evaluation about reconstructive organs after esophagectomy. The investigators evaluate endoscopic predictions using classifications in acute phase after esophagogastrostomy.
Cerebral autoregulation is an important mechanism whereby cerebral perfusion is normally maintained at a constant level, over a relatively wide blood pressure range. It can be assessed noninvasively by the use of Trans Cranial Doppler (TCD). This means using ultrasound probes over both sides of the head to measure changes in blood flow in one of the main brain arteries (the middle cerebral artery) in response to beat to beat changes in blood pressure dynamic cerebral autoregulation (dCA). It is established that dCA is impaired following moderate to severe stroke, acting as a key role in the development of secondary brain damage related to brain swelling and further damage related to the low blood flow. The administration of clot busting therapy (thrombolysis), one of the main approved treatments of acute ischaemic stroke (AIS), results in recanalisation of the blocked artery in only approximately 50% of patients. Therefore, as well as attempts to treat major vessel blockage, improving brain blood flow, particularly to the penumbral area, through arteries that bypass the blockage is another potential therapeutic approach in AIS.One simple way of achieving this might be to lower the head of AIS patient into a lying flat (0⁰) position. However, to date, there have been very few studies exploring this. This research will use the noninvasive technique of Trans Cranial Doppler (TCD) to see how blood flow changes in different head positions, both in healthy volunteers and AIS patient. This study will provide important data regarding blood pressure management in acute stroke, an important and common clinical dilemma.
Regional absolute myocardial blood flow during stress (sMBF) as measured by Positron Emission Tomography (PET) improves post mechanical revascularization provided there is a baseline stress induced perfusion defect. Coronary revascularization performed on regions without a stress induced perfusion defect does not increase the sMBF.
It has been known that liraglutide reduces infarct size, improved left ventricular function, reduce myocardial stunning, and play a protective role in myocardial ischemia-reperfusion injury for patients with acute myocardial infarction. But it is not sure whether liraglutide can benefit patients with ischemic cardiomyopathy. This study aim to explore the effect of Liraglutide in improving cardiac function for patients with ischemic cardiomyopathy.
The Bifurcation ABSORB OCT Trial is a prospective, randomized (1:1) evaluation of the efficacy and performance of single ABSORB everolimus eluting bioresorbable vascular scaffold provisional strategy in the treatment of (a) coronary bifurcation lesion(s) in consecutive subjects with and without fenestration towards the side branch. Patients included in this study will be divided into three different cohorts: - Cohort A (patient 1-20): Angiographic FU with OCT at 12 months. - Cohort B (patient 21-40): Angiographic FU with OCT at 24 months. - Cohort C (patient 41-60): Angiographic FU with OCT at 36 months. All patients will also have telephone FU at 30 days, 12, 24 and 36 months. Inclusion of patients in the BISORB OCT trial stopped in November 2016 after safety concerns of the ABSORB BVS were reported. BISORB OCT included 3 patients, which were all included in the Academic Medical Center
The purpose of this study is to determine whether a single intracoronary infusion of an adenovirus serotype 5 virus expressing the gene for human fibroblast growth factor-4 (Ad5FGF-4) is effective in improving angina-limited exercise duration, angina functional class, frequency of angina attacks, frequency of nitroglycerin usage, and quality of life. Half of the study participants will receive Ad5FGF-4, and half will receive placebo. The primary endpoint is the change from baseline to Month 6 in Exercise Tolerance Test (ETT) duration. Long-term safety of Ad5FGF-4 will also be assessed.
The Chocolate Touch study is a randomized, multi-center, prospective, adaptive study, designed to show sufficient safety and effectiveness of the Chocolate Touch™ for use in superficial femoral or popliteal arteries with the intention of obtaining regulatory approval to market this device in the United States
The aim of this study is to determine whether early administration of aspirin in acute ischemic stroke patients treated with systemic thrombolysis is safe and can improve outcomes due to decreasing the number of early rethromboses.
The purpose of this study is to investigate whether the use of inhaled anesthetics, compared to intravenous anesthetics, can affect the amount of lung inflammation and postoperative respiratory complications seen after cardiac surgery.