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Browse 7,313 clinical trials for heart disease. Find studies that match your criteria and connect with research centers.
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Showing 2581-2600 of 7,313 trials
NCT05916612
This is an exploratory project with the purpose to describe the responses of the right ventricle (RV) and gas exchange during exercise in patients scheduled to undergo left ventricular assist device (LVAD) implant. Such information might be used to predict the likelihood of RV failure after LVAD implant. Additionally, although patients that undergo LVAD implantation have improved quality of life and survival, their exercise tolerance (although improved) remains markedly reduced compared to healthy subjects. No studies have used cardiopulmonary stress testing and echocardiography to assess cardiac function and gas exchange with LVAD implantation to determine potential factors responsible for their limited function. The aims of this study are as follows: 1. To assess the impact of right ventricle (RV) dysfunction on functional capacity before and after left ventricular assist device (LVAD) implant 2. To determine if the combined use of preoperative clinical, CPX and echo data can assist in predicting who will meet target improvements in functional capacity after LVAD implant.
NCT06050096
The percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) coronary artery disease is difficult, the success rate is low, and the incidence of re-occlusion and restenosis is high. With the wide application of imaging technology represented by intravascular ultrasound (IVUS), the success rate of CTO PCI has been significantly improved. Drug-coated balloons (DCB), as a treatment without metal implantation, has lower lumen loss and no significant increase in the rate of revascularization. Through IVUS measurement of vascular lumen after CTO opening, appropriate instruments can be selected for adequate dilation, and appropriate treatment methods can be selected according to different lumen structures. Therefore, the purpose of this study was to evaluate the clinical effect of IVUS-guided DCB therapy on CTO lesions.
NCT04881812
This is an investigator-initiated, randomized, multi-center, non-inferiority clinical trial. Patients with a Chronic Total Occlusion who are eligible for PCI will be randomized to additional Drug-Coated-Balloon treatment or stenting of adjacent residual disease to the CTO body. The aim of this study is to investigate whether treatment with DCB is non-inferior to complete stenting of the CTO body.