View clinical trials related to Ischemia.
Filter by:The purpose of this study is to determine the safety, tolerability and preliminary efficacy of intramuscular injections of VM202 for subjects with critical limb ischemia. Subjects selected for this study will have critical limb ischemia that has not responded to standard therapy with symptoms including pain at rest and/or ischemic ulcers.
To identify the circumstance during decision making processes to seek medical help in patients with symptoms of acute ischemic stroke.
Rationale: The investigators hypothesize that EPO protects against apoptosis after acute ischemia in man and that it is detectable using the annexin-A5 model. Objective: Does infusion of a single dose of Epoetin Alfa, a short-acting EPO, protect against apoptosis in man after acute ischemia? Study design: A double blinded randomised cross-over study. Study population: 12 Healthy male volunteers, between 18 and 40 years old. Intervention: All 12 volunteers will receive a single dose of EPO and placebo in a randomized order. A six week wash-out period is obtained in order to avoid interference of both treatments. Main study parameters/endpoints: The percentage of difference between radioactivity (quantified as counts per pixel) of the experimental and control thenar muscle at one and four hours after reperfusion.
Surgical revascularization has proven its efficacy in term of morbidity and mortality in patients with multivessel coronary disease and poor left ventricular function. Nevertheless, if left ventricle is severely dilated, the improvement of global contractility and reduction of volumes is frequently absent after CABG even if substantial amount of myocardial viability is present. A value of > 140 ml for end systolic volume has been proposed as the cut off for the absence of recovery after revascularization. Recently, a reduction of cardiac volumes and improvement of regional and global contractility has been demonstrated in patients with advanced ischemic heart disease, severe dilation of left ventricle and poor candidates for revascularization after injection of stem cells in territories with residual viability.
This study investigates whether symptom-limited exercise capacity in ischemic cardiomyopathy patients with angina is deleteriously affected by treatment with CK-1827452.
The purpose of this study is to investigate the efficacy and safety of autologous transplantation of mononuclear cells with and without G-CSF in patients with chronic lower limb ischemia.
Patients undergoing surgery on their Aorta can get ischemia, a lack of blood flow, to their intestines and colon. This is very serious, as 2 out of 3 patients who have this problem die before leaving the hospital. A device developed by Spectros, called T-Stat, is approved by the US FDA to detect ischemia, and has been reported to detect ischemia in AAA aneurysm surgery and stenting, allowing the surgeon or interventional radiologist to take action quickly, while the colon ischemia is still treatable. This purpose of this study is to establish how T-Stat can best be used to prevent deaths.
T-wave alternans is a test that looks at microvolt changes in the T-wave on a beat to beat basis. The presence or absence of such changes has been shown to predict or exclude future arrhythmic events. The mechanism of T-wave alternans is unclear, but may relate to calcium metabolism in the heart, and may be affected by conditions such as ischemia or heart failure. The purpose of this study is to determine whether T-wave alternans, as measured through the lead of an implantable defibrillator, is produced by acute ischemia induced by occlusion during percutaneous coronary interventions.
After surgery, patients who have cardiogram changes consistent with a lack of oxygen to the heart muscles, also known as myocardial ischemia, have been found to have 9 times the chance of having an event such as a heart attack during the subsequent 30 days. It is not known if monitoring and treating ischemia will prevent events such as heart attacks. It is not known if such monitoring and treatment can be done on the regular surgical wards. In this pilot study, we hope to demonstrate that such a study is feasible, and the maintenance of blinding is possible. The primary outcomes are to show that such monitoring after surgery is possible in ≥ 95% of patients, to show that response and treatment to such ischemia in ≤ 1 hour is possible in ≥ 90% of patients, and that blinding between the standard and active treatment groups is possible for 50% ± 1 s.d.. With the pilot study data, if successful, we will be applying for peer-reviewed funding for a full study.
Magnetic resonance imaging (MRI) and echocardiography are two imaging methods that are used to obtain pictures of the heart and assess heart function. This study will evaluate a new, four-dimensional echocardiography approach of obtaining heart images to determine if it is as effective at evaluating heart function as MRI.