Active clinical trials for "Venous Insufficiency"

The purpose of this study is to learn about the safety, efficacy and utility of a medical device called the Cook® Venous Valve System. This device, percutaneously placed in the leg, is meant to help the blood flow correctly through the veins in the leg.

This study compares the efficacy and safety of sulodexide (Vessel) to placebo in patients with chronic venous disease of the lower extremities. The primary hypothesis is that more patients will achieve a decrease in rVCSS score of at least 4 points with sulodexide than with placebo.

A prospective, non blinded, single arm, multicenter study designed to assess the safety and effectiveness of the bioprosthetic, VenoValve, which is surgically implanted into the deep venous system for treatment of patients with deep venous valvular insufficiency ( C4b-C6 patients).

This study aims to evaluate the safety (incidence of adverse events including serious adverse events and clinical significant laboratory abnormalities) of personalized tissue engineered veins (P-TEV) with valves implanted in patients with severe chronic venous insufficiency (CVI). For each patient a segment of the femoral vein containing the non-functioning valve will be surgically replaced with a single P-TEV containing a functioning valve.

Chronic obstruction of the iliac veins or inferior vena cava can occur as a result of deep vein thrombosis (DVT), or due to extrinsic compression in non-thrombotic iliac vein lesions (NIVLs). This obstruction can manifest as post-thrombotic syndrome (PTS) after DVT or as chronic venous disease (CVD) in NIVL. Despite sparse evidence, rates of venous stenting for PTS and NIVLs are increasing. A pragmatic, observer-blind, multi-centre, randomised-controlled trial for adults with CVD secondary to either PTS or NIVLs randomised to either best endovenous therapy (including venoplasty and deep venous stenting) or standard therapy (compression +/- anticoagulation). Included participants will have chronic venous disease (CEAP classification 3 - 6) secondary to proximal deep venous disease. The primary outcome is severity of venous disease at 6 months as ascertained by the Venous Clinical Severity Score (VCSS).

The present study aims to use a game-based tele-exercise program for patients using a compression garment to improve lower extremity edema. This tele-exercise gaming platform can work as an efficient exercise to improve patients' muscle strength. It also can be helpful in improving edema and venous return and can be used in addition to compression garments to increase efficacy. The sample size (n=30) is convenient and designed to explore acceptability and feasibility. Eligible participants will be screened at the Baylor college of Medicine Clinic based on the inclusion/exclusion criteria. Participants who satisfy the inclusion and exclusion criteria and sign the informed consent form will be randomly assigned with ratio of 1:1 into two groups. Both groups will receive a compression garment to use for 4 weeks, and in the intervention group, patients will receive a sensor and a tablet to play foot & ankle exercise games twice a day for 5 minutes. Study participation will be 4 weeks for all participants. Participants will be assessed in two visits: a baseline visit (BL) and a visit at the end of the 4 weeks (W4). The primary outcomes will be calf circumference, foot volume, and pitting edema grade. Secondary outcomes include limb strength, foot perfusion, gait assessment (gait speed, stride length, double stance, and gait steadiness), balance, and quality of life. The coordinator will monitor patients weekly to see their adherence to the compression garment and game-based exercise.

This is a prospective, multi-center, single-arm, non-blinded clinical trial designed to investigate the safety and efficacy of the Vesper DUO Venous Stent System as compared to a pre-defined performance goal (PG) established from published, peer reviewed scientific literature related to stenting of iliofemoral venous outflow obstructions.

EVLA is used in in treating refluxing veins, commonly the GSV. The tip of catheter is usually placed 2-2.5 cm distal to the sapheno-femoral junction. This technique theoretically provides the lowest risk for endothermal heat-induced thrombosis (EHIT). In the present study we aimed to evaluate the zero-distance technique (the kissing technique) compared to 2-cm distance from SFJ valve in ablating incompetent GSV.

Varicose veins are a common problem, affecting up to a third of the western adult population. Most suffer with aching, discomfort, pruritis, and muscle cramps, whilst complications include oedema, eczema, lipodermatosclerosis, ulceration, phlebitis, and bleeding. This is known to have a significant negative effect on patient's quality of life (QoL). Surgery has been used for many years, but it is known that there is a temporary decline in QoL post-op. This was demonstrated in our pilot study. Surgery leads to painful and prolonged recovery in some patients and has the risks of infection, haematoma and nerve injury. Recurrence rates are known to be significant. Duplex of veins post surgery has demonstrated persistent reflux in 9-29% of cases at 1 year, 13-40% at 2 years, 40% at 5 years and 60% at 34 years. 26% of NHS patients were 'very dissatisfied' with their varicose vein surgery. Newer, less invasive treatments are being developed. It would be advantageous to find a treatment that avoided the morbidity of surgery, one that could be performed as a day-case procedure under a local anaesthetic, a treatment that could offer lower recurrence rates and allow an early return to work. These should be the aims of any new treatment for varicose veins. Endovenous Laser Treatment (EVLT) is performed under a local anaesthetic and uses laser energy delivered into the vein to obliterate it. The vein therefore need not be tied off surgically and stripped out. The aim of this study is to compare the clinical, cost effectiveness and safety of Surgery and EVLT.

200 patients with insufficient great saphenous veins will be randomized to either radiofrequency ablation or high ligation/stripping (open surgery). They will be examined according to standardized examination protocol Venous Clinical Severity Score (VCSS), with duplex ultrasound and plethysmography pre- and postoperatively (1-month, 1-, 3 and 5 years). They are to fill questionnaires EuroQol 5 Dimensions (EQ-5D) and disease specific Aberdeen Varicose Vein Questionnaire (AVVQ).