View clinical trials related to Myocardial Ischemia.
Filter by:To evaluate the clinical safety and efficacy in Chinese subjects, eligible for percutaneous transluminal coronary angioplasty (PTCA) in lesions amenable to treatment with a 34/38 mm Medtronic Resolute Integrity™ Zotarolimus-Eluting Coronary Stent System.
The purpose of this study is to predict any changes in the side branch after stenting the main branch blood vessel using three dimensional intravascular images. (Frequency domain optical coherence tomography FD OCT). Optical coherence tomography (OCT) is an established medical imaging technique that uses light to capture high-resolution, three-dimensional images of blood vessels. These images will be used before and after implanting the stent in the main blood vessel. Fractional Flow Reserve (FFR) test, which makes it possible for the interventional cardiologist to calculate blood flow across an area of a coronary artery, will be done after stenting and will help to determine if there are any changes in the side branch blood flow.
The mainstay for treatment for acute coronary syndrome (ACS) focusses on re-establishing and maintaining the patency of vessels following coronary plaque disruption, through the use of anti-platelets and anticoagulants. Despite advances in management ACS still carries a high risk of morbidity and mortality, thus future management is likely to target other pathways. Recent studies indicate that CD4+ T cells, and more specifically Treg cells, are important for the control of post-ischemic immune responses and the promotion of myocardial healing. The investigators therefore hypothesise that expansion of Treg cells in patients with ACS dampens the activation of the immune response and promotes both plaque and myocardial healing. The investigators hypothesise that this can be achieved through subcutaneous administration of low doses of interleukin-2 (IL-2). IL-2 supplementation appears to be an attractive therapeutic option playing a key role in Treg cell development, expansion, survival and suppressive function.
The purpose of this study is to investigate the efficacy of Enhanced External Counterpulsation (EECP) therapy on ventricular function in patients with coronary heart disease
The purpose of this study is to evaluate the feasibility, tolerability, safety, and image quality of low-radiation, dynamic perfusion CT of the heart in patients with suspected ischemic chest pain and a moderate or severe stenosis seen on coronary CTA. Secondary aims include the assessment of the diagnostic accuracy of CT perfusion imaging compared to either SPECT or invasive angiography.
The recurrence of major cardiac events after infarction is very high, in some populations up to 20% in the first year. Optimal secondary prevention as organized in cardiac rehabilitation centers is effective in reducing both morbidity and mortality. However, many studies have shown that the participation and adherence rate in CR-programs is low in most European countries. Therefore, novel ways of delivering secondary prevention using information technology and self-monitoring are being explored. Hence, this study will investigate the effectiveness of a mobile, patient tailored, app based multidisciplinary telerehabilitation program (HeartHab app) in improving exercise capacity, lifestyle and risk factors in patients with coronary artery disease in a post-rehabilitation setting.
The present study aimed to investigated the effect of Enhanced External Counterpulsation (EECP) on vascular hemodynamics and atherosclerosis, and the underlying shear stress related mechanisms
Background: Coronary artery bypass grafting (CABG) due to coronary artery disease (CAD) is one of the main surgical procedures performed in the area of cardiology. Individuals undergoing CABG present sarcopenia, decreased muscle strength of the lower limbs, decreased respiratory muscle strength and dyspnea due to immobility in the bed and the inherent conditions of the disease itself. Cardiorespiratory rehabilitation techniques are rarely used with measurement in hospitals and can greatly favor an early and effective reestablishment to this population in several parameters. Objective: To evaluate the effect of functional electrical stimulation (FES), ventilatory muscle training (TREMVEN), early aerobic training (AERO) and isometric handgrip training (ISO) on the functional capacity, endothelial function and cardiac parameters of individuals undergoing CABG. Methods: In a randomized clinical trial, volunteers will be allocated into four groups: EEF, TREMVEN, AERO or ISO in the preoperative period of CABG. After 48 hours (postoperative midway) of the surgery, the protocol will begin until after hospital discharge. The endpoints evaluated will be: functional capacity, respiratory muscle strength, systolic and diastolic function, arterial endothelial function, inflammatory profile and plasma levels of vascular endothelial growth factor (VEGF). Scientific contributions: Phase 1 cardiorespiratory rehabilitation with alternative interventions may provide an increase in functional capacity, strengthening of respiratory muscles, improvement in cardiac and endothelial functions, as well as increased systemic VEGF levels (myocardial revascularization) and improvement of the inflammatory profile, effectively forwarding the individuals to the rehabilitation phase 2.
NSTE-ACS represents the most frequent indication for coronary angiography and percutaneous coronary intervention (PCI) worldwide. PCI permit to reestablished coronary flow but effectiveness of PCI within thrombus containing lesions is limited by the risk of occurrence of distal embolization and no-reflow phenomenon. Distal embolization lead to coronary microcirculation lesions. This complication is related to poor prognosis. MGuard stent is a stainless-steel closed cell stent covered with an ultra-thin polymer mesh sleeve, which allows to prevent distal embolization during percutaneous coronary intervention in ST-segment-elevation myocardial infarction. Index of microcirculatory resistance (IMR) is a validated method to assess coronary microcirculation. Accordingly, the purpose of this study is to demonstrate that MGuard micronet mesh-covered stent prevent distal embolization and microvascular reperfusion impairment during primary PCI, compared with a bare metal stent (BMS) and drug eluting stent (DES) in patients with NSTE-ACS, assessed by Index of microcirculatory resistance.
The purpose of this study is to observe and evaluate the performance of a Sirolimus-eluting Drug Coated Balloon for the treatment of any type of coronary lesions, including native vessel disease and in stent restenosis.