View clinical trials related to Ischemia.
Filter by:Despite advances in the treatment of heart attacks the complications and death rates from failure of the heart to pump properly after treatment remain high. A heart attack occurs when one or more of the arteries that supply blood to the heart become blocked, causing the heart to be starved of oxygen and nutrients. This results in damage to the heart and so the the heart pumps less well. The main treatment for a heart attack is balloon treatment to open the blocked artery (called primary angioplasty). Whilst re-opening the artery is essential and allows blood to flow to the area of the heart starved of oxygen, this process also causes damage itself (called reperfusion injury) and increases the size of the heart attack further. Currently there are no treatments available that reduce this reperfusion injury. The investigators and others have shown that a substance called sodium nitrite reduces reperfusion injury in experimental models of a heart attack. The aim of this research is to perform a trial to investigate whether during a heart attack, an infusion of sodium nitrite into the damaged artery protects against reperfusion injury and reduces heart attack size in patients.
The registry aims to evaluate the safety, performance and efficacy of the Everolimus-eluting bioresorbable vascular scaffold (BVS) system in patients with de novo native coronary artery lesions in all-day clinical practice.
This study is a regulatory post-marketing surveillance in Japan, and it is a local prospective and observational study of patients who have received Xarelto for SPAF. The objective of this study is to assess safety and effectiveness of Xarelto using in real clinical practice. A total of 10,000 patients are to be enrolled and assessed in 2 years standard observational period. An annual follow-up survey will be conducted for 5 years at the longest after standard observational period.
The reason the investigators are doing this study is to compare the results of laser atherectomy versus angioplasty with or without the placement of a stent in the artery. A stent is a metal tube used to open up narrow arteries in the body.
A natural form of vitamin E called tocotrienol (TCT), found in many common foods such as barley, decreases stroke size in animal models. Vitamin E has blood-thinning properties and lowers cholesterol, which make it a potential therapy for stroke prevention, though these effects are less well characterized for TCT. We plan to conduct two trials (I & IIA) to determine the effects of orally supplemented TCT on platelet function and cholesterol.
Martorell hypertensive ischemic leg ulcer is a severe type of skin necrosis (skin infarction) which occurs in long-term hypertensive subjects. Calciphylaxis (calcific uremic arteriolopathy) is a severe type of skin necrosis (skin infarction) which occurs in subjects with end-stage kidney disease or after kidney transplantation.
The primary objective of the present randomized controlled trial is to compare the effectiveness of three anti-smoking interventions of different intensities. It has been hypothesised that early follow-up visits facilitate post-stroke smoking cessation in patients hospitalized because of first-ever ischemic stroke.
Even if it is a daily questioning for the stroke physician, no concrete recommendation exists regarding the time-point of the mobilization of stroke patients. In this study, we will compare two mobilisation strategies: early versus delayed "verticalisation". 400 ischemic stroke patients will be included in this prospective randomized controlled trial, equally distributed in two groups. In the early mobilisation procedure the patient is allowed to go and sit outside of the bed the day after the stroke onset, whereas in the other arm, this procedure is delayed to the third day after stroke onset. The outcome in both groups will be assessed by the modified Rankin Scale at 3 months, which is commonly used in stroke study to investigate the functional outcome of the patients.
The current study is designed to have broad generalizability and inform a potential shift toward greater utilization of stress echocardiography with UCA. This will be accomplished by comparing UCA stress echocardiography with myocardial SPECT among hospitalized patients presenting with atraumatic chest pain. This study seeks to demonstrate: clinical comparability of the 2 modalities (based on non-diagnostic test rates), improved care efficiency (based on length of stay), lower costs, improved provider satisfaction, and a presumed improved safety profile through the elimination of radiation exposure. Primary Hypothesis: A strategy of routine UCA (Optison™) enhanced stress echocardiography will result in a clinically non-diagnostic test rate comparable to myocardial SPECT among patients hospitalized (inpatient or hospital observation status) with atraumatic chest pain.
Making a limb transiently ischemic induces ischemic tolerance in distant organs such as the heart. This study aims to evaluate the feasibility, safety and initial efficacy of using briefly repetitive bilateral limb ischemic preconditioning (BLIPC) to protect the brain in octogenarians with symptomatic intracranial arterial stenosis.