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Varicose Veins Clinical Trials

A listing of Varicose Veins medical research trials actively recruiting patient volunteers. Search for closest city to find more detailed information on a research study in your area.


Found (94) clinical trials

Studies of the Natural History Pathogenesis and Outcome of Idiopathic Systemic Vasculitis

The purpose of this protocol is to study the natural history of idiopathic systemic vasculitis in children and adults. The idiopathic vasculitides are a group of rare, systemic diseases involving inflammation of arteries and other tissue with resulting organ- and lifethreatening disease courses. The different forms of idiopathic vasculitis are ...

Phase N/A

National Eye Institute Biorepository for Retinal Diseases

This study establishes a clinical database and biospecimen repository for the identification of novel factors relevant to the pathogenesis, progression, and response to treatment of a variety of retinal conditions, particularly age-related macular degeneration and diabetic retinopathy, and their associated systemic correlates of disease. Objectives: This study provides for standardized ...

Phase N/A

Prognostic Factors Keeping Track for Covid19 Pneumonia

It has been reported that nearly half of the patients who are hospitalized for Covid-19 pneumonia have on admission old age or comorbidities. In particular, hypertension was present in 30% of the cases, diabetes in 19%, coronary heart disease in 8% and chronic obstructive lung disease in 3% of the ...

Phase N/A

Validation of a Single Rest-Stress Imaging Protocol for Myocardial Perfusion Imaging

We propose a single-scan two-injection myocardial perfusion imaging protocol using ammonia. Subjects will undergo single-scan two-injection imaging as well as regular stress single-scan single-injection protocol and the myocardial blood flow of both techniques will be compared.

Phase N/A

Genetics of Type 2 Diabetes in West Africans

This research protocol is designed to study the genetic basis of Type 2 Diabetes (T2D) and related conditions in Africa. This project, the Africa America Diabetes Mellitus (AADM) Study, has been continuously funded for over a decade by multiple institutes at NIH including an R01 grant from the NIDDK to ...

Phase N/A

Spontaneous Coronary Artery Dissection (SCAD) and Autoimmunity

This case control study aims to determine whether spontaneous coronary artery dissection (SCAD) is associated with autoimmune diseases and to update the incidence of SCAD in a population-based cohort.

Phase N/A

Renin-Angiotensin System Inhibitors and COVID-19

The recent SARS-CoV-2 Coronavirus pandemic and subsequent spread of the disease called COVID-19 brought back to the discussion a topic already highlighted during the SARS-CoV-4 crown-related SARS epidemic of 2002. In particular, the angiotensin converting enzyme 2 (ACE2) has been identified as a functional receptor for coronaviruses, therefore including SARS-CoV-2. ...

Phase N/A

Tissue Oxygenation During Treatment of Infant Congenital Heart Defects

Using near-infrared spectroscopyNIRS to monitor intraoperative and postoperative tissue oxygen saturation (brain, kidney, intestine) and to investigate the correlation with postoperative complications. A NIRS sensor(CASMED, Branford, CT, USA) will be placed on forehead to monitor the cerebral tissue oxygen saturation (StO2) of frontal cortex; another sensor will be placed on ...

Phase N/A

Study of Cerebral Venous System in Acute Ischemic Stroke Patients Receiving Reperfusion Therapy

Stroke therapy had entered a new era since endovascular therapy was introduced in addition to intravenous thrombolysis. The benefit of endovascular therapy for patients with a proven proximal intracranial arterial occlusion has recently been revealed in several large randomized controlled trials. However, a substantial number of patients treated with reperfusion ...

Phase N/A

Sodium Storage in Singaporeans

Cardiovascular disease (CVD) occurs with increasing age and is the leading cause of death worldwide. A causal relationship between salt and CVD, although well established in animal models, has been difficult to prove in human populations. First, because humans do not live under the strict experimental conditions necessary to quantify ...

Phase N/A