View clinical trials related to Vascular Diseases.
Filter by:The REQUIRE STUDY is a multi-center, randomized, double-blind, sham-controlled study, which aims to confirm the efficacy and safety of PRDS-001 (ReCor Medical Inc. Paradise in Europe) for renal denervation therapy in patients with treatment resistance hypertension, in comparison with the sham procedure.
The primary objective of this study is to show that cardiovascular risk factors associated with the chronic elevation of arterial resistance may be associated with "false" profiles of intracranial hypertension during transcranial doppler ultrasound of the middle cerebral arteries in intensive care unit patients. A "false" profile of intracranial hypertension is defined by a high pulsatility index without any intracranial pathology.
The enormous and rapidly growing burden of Heart Failure with Preserved Ejection Fraction (HFpEF) has led to a need to understand the pathogenesis and treatment options for this morbid disease. Recent research from the investigator's group and others have shown that pulmonary hypertension (PH) is highly prevalent in HFpEF, and right ventricular (RV) dysfunction is present in both early and advanced stages of HFpEF. These abnormalities in the RV and pulmonary vasculature are coupled with limitations in pulmonary vasodilation during exercise. There are no therapies directly targeted at the pulmonary vasculature that have been clearly shown to be effective in HFpEF. A recent study by Mayo Clinic Investigators has demonstrated pulmonary vasodilation with dobutamine (a beta 2 agonist) in HFpEF. As an intravenous therapy, this is not feasible for outpatient use. In the proposed randomized, placebo-controlled double blinded trial, the investigators seek to evaluate whether the commonly used inhaled bronchodilator albuterol (a beta 2 agonist), administered through a high-efficiency nebulizer device that achieves true alveolar drug delivery, improves pulmonary vascular resistance (PVR) at rest and during exercise in patients with HFpEF as compared to placebo. This has the potential to lead to a simple cost effective intervention to improve symptoms in HFpEF, and potentially be tested in other World Health Organization (WHO) Pulmonary Hypertension groups. PVR is an excellent surrogate marker for pulmonary vasodilation and has been used in previous early trials of PH therapy.
Is real-time myocardial perfusion echocardiography (RTMPE) a feasible and effective non-invasive method to detect significant Coronary Allograft Vasculopathy in pediatric and adult cardiac transplant recipients? Will perfusion deficits correlate with significant coronary artery stenosis identified by standard stress echocardiography and Invasive Coronary Angiography (ICA), and identify diffuse small vessel disease more effectively than current non-invasive techniques?
The purpose of this study is to assess the effects of electronic cigarettes-nicotine and electronic cigarette-nicotine free on endothelial function as compared to traditional cigarettes. Due to ethical reasons, we cannot fully randomise all particpants to the three arms. Participants who wish to quit smoking will be randomized to 1. Switch to electronic cigarettes containing nicotine plus flavor 2. Switch to electronic cigarettes containing flavor alone Those who do not wish to quit smoking will continue on the Tobacco Cigarette arm Treatment period will be 28 days
The aim of this study is to prospectively collect information to evaluate the safety and performance of the Akesys Prava Sirolimus Eluting Bioresorbable Peripheral scaffold system for the treatment of symptomatic primary atherosclerotic stenoses and occlusions of the superficial femoral artery (SFA).
The aim of the study is to assess if venous distension in patients with aneurysmatic arteriopathy is higher compared to patients with peripheral arterial occlusive disease (PAOD) and in controls.
Patients scheduled for major extremity lower amputation to receive bone marrow cells (cBMA) injected IM in the leg proximal to the amputation in the index limb to prevent ischemic wound complications after surgery.
Measure microcirculatory responses after localized ischemia obtained by local application of pressure (laser speckle).
Objective: To evaluate the efficacy of intravitreal aflibercept injection on visual acuity in patients with symptomatic macular PCV.