View clinical trials related to Myocardial Ischemia.
Filter by:In this study, the investigators sought to evaluate the feasibility of estimating external hemodynamic stress acting plaque with the use of invasively measured hemodynamic data from pressure wire pullback tracing. In addition, the investigators will also evaluate detailed plaque geometry and vulnerability using optical coherence tomography along with the hemodynamic stress.
The purpose of this study is to characterize the plaque morphology in patients with acute STEMI by OCT after aspiration thrombectomy.
Despite the routine use of procedural anti-coagulation and anti-platelet therapy for FFR calculation, no study has evaluated the optimal anti-thrombotic regimen in patients undergoing FFR. Therefore, the aim of the Evaluation of Simplified Anti-Thrombotic Therapy for Coronary Fractional Flow Reserve (SMART-FFR) study was to evaluate the safety of using a simplified anti-thrombotic regimen with only upstream dual anti-platelet therapy (DAT) with aspirin and clopidogrel, compared with anticoagulation plus single- or- DAT therapy in patients with intermediate coronary artery stenosis undergoing FFR calculation during elective coronary angiography.
The purpose of this study is to determine the proportion of untreated donor platelets required to fully reverse the platelet inhibitory effects of ticagrelor and aspirin in healthy persons and patients with coronary artery disease undergoing percutaneous coronary intervention (PCI) and receiving ticagrelor.
This proposal seeks to assess the impact of 24 weeks of metformin on non-calcified plaques and calcified plaques assessed by coronary CT angiography, and on whether these changes can be explained by metformin-induced phenotypic and secretory changes of monocytes.
This study is a prospective study of patients referred for coronary angiography at Bellevue Hospital Center and NYU Langone Medical Center. Subjects enrolled in this study will complete two one-page questionnaires, including information about diet, lifestyle, perceptions of health and perceived barriers to healthy lifestyles. Patients will be contacted at one and six months following their procedure to complete follow-up questionnaires to assess changes in diet and perceptions of their health after knowing the results of their coronary angiogram. The primary outcome measure will be change in dietary patterns/perception of lifestyle between baseline and one- month and six-month follow-up. Secondary measures will include association between dietary patterns/perception of lifestyle and degree of CAD and socioeconomic status.
Coronary artery disease (CAD) is the leading cause of morbidity and mortality in developed countries. In addition, many patients suffer from valvular and aortic disease. Although various tools are available to identify patients with cardiovascular (CV) disease at risk for major adverse cardiac events (MACE), the identification of these patients remains a clinical challenge. One promising avenue is the use of different serum biomarkers involved in atherothrombosis which could provide an easy and cost-effective step in risk stratification.
The primary objective of this trial is to evaluate confirmation of placement of any guidewire beyond the chronic total occlusion (CTO) in the true vessel lumen in patients in which at least one Asahi series of guidewires and/or Corsair microcatheter were used. Procedure success will be defined as angiographic visualization of any guidewire in a position either distal or proximal to the occlusion depending on the route of access and the absence of in-hospital major adverse cardiac events (MACE).
Background: - Heart disease is the leading cause of death and disabilities in the United States. Diets high in fruits and vegetables may reduce the risk of heart disease. Fruits, including red tart cherries and purple aroniaberries, may be especially beneficial. Researchers want to know how tart cherry and aroniaberry extracts affect heart health. Objective: - To study the benefits of tart cherry and aroniaberry extract on vascular function and other measures. These include inflammation, oxidation, and cholesterol. Eligibility: - Men and post-menopausal women ages 55 70 in good health and with normal or slightly high blood pressure or cholesterol. Design: - Participants will be screened with a physical exam, medical history, and blood tests. - Participants will have 6 visits. They will have blood taken at every visit. - Visit 1: - Blood vessel tests. Participants will lie down. Heart rhythm will be monitored. A device will be placed on the upper arm, and pictures of blood vessels will be taken. - A blood pressure cuff will be tightened around the lower arm for 5 minutes. - Cardio-Ankle-Vascular Index (CAVI). Blood pressure cuffs will be placed on both arms and legs. They will be tightened with air at the same time for a few minutes. - Participants will be assigned to one of three groups. For 3 weeks each, in random order, they will take: aroniaberry capsules, tart cherry capsules, placebo capsules, and no capsules. - Participants will answer questions online about their eating and exercise. - Participants will be keep a record of what they eat for a few periods. They will come for a study visit every 3 weeks through week 15.
This study will evaluate the effect of GS-6615 in adults with chronic stable angina and coronary artery disease (CAD) receiving a stable daily dose of up to 2 antianginal medications. The study will consist of two periods: a 1 to 3 week Qualifying Period and a Treatment Period lasting 13 days (± 3 days). During the Qualifying Period and at the end of the Treatment Period, participants will undergo exercise tolerance testing.