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Find 452 clinical trials for heart disease near Boston, Massachusetts. Connect with research centers in your area.
Showing 301-320 of 452 trials
NCT02468336
The objective of this study is to demonstrate that the investigational device, AngioDefender, is comparable to the established procedure referred to as 'brachial artery ultrasound imaging' in their abilities to quantify flow-mediated vasodilation of the brachial artery.
NCT01822769
The hypothesis of this study is that participation in a formal cardiopulmonary rehabilitation program improves aerobic exercise capacity and quality of life over the medium term for patients with congenital heart disease with reduced exercise capacity. To test this hypothesis, subjects will be randomized to either receive a 12-week cardiopulmonary rehabilitation program or standard of care, with interval testing of aerobic capacity and other physiologic markers improved fitness, as well as assessment of quality of life.
NCT00869869
The purpose of this study is to determine whether melatonin can improve sleep, quality of life and markers of heart failure in patients with heart failure.
NCT00683696
The EchoCRT trial evaluates the effects of Cardiac Resynchronization Therapy (CRT) on mortality and morbidity of subjects with heart failure due to left ventricular systolic dysfunction, already receiving optimized HF medication, with a narrow QRS width (\< 130 ms) and echocardiographic evidence of ventricular dyssynchrony.