Active clinical trials for "Venous Insufficiency"

This study is a retrospective, chart review of treatment of patients with symptomatic varicose veins. Treated limbs must have the Great Saphenous Vein and/or Small Saphenous Vein treated with either cyanoacrylate closure (VenaSeal) or Endothermal Ablation (either Radiofrequency Ablation or Endovenous Laser Ablation).

Nocturia, or waking during the night to pass urine, is a multifactorial disease. An important cause of nocturia are peripheral edema due to accumulation of fluid in the lower limbs. Venous insufficiency is an important cause of peripheral edema. The investigators hypothesize that, as a result of the lying position during the night, the accumulated fluid in the lower limbs returns to the systemical circulation leading and is excreted during nighttime. This will lead to a higher voiding frequency during the night. With this trail the investigators wanst to prove the difference in leg edema between healthy volunteers and volunteers with venous insufficiency (Type 1 or 2).

It is known that 33-50% of Classic and Hypermobile Ehlers-Danlos Syndrome patients eventually develop dysautonomia, otherwise known as "POTS" (Postural Orthostatic Tachycardia Syndrome). Some of these patients develop dysautonomia as a result of a retroflexed odontoid, Chiari 1 Malformation or cranial settling and the resulting basilar impression. Many Ehlers-Danlos patients suffer with the same symptomology with no evidence of a cause according to MRI imaging. It is the author's hypothesis that low-level External Communicating Hydrocephalus appears to be responsible for the constellation of autonomic and cranial nerve symptoms, and if present in the very young, an analysis of head circumference growth in the first 15 months of life should reflect abnormally rapid head growth, supporting this hypothesis.

Venous thrombosis is the development of a blood clot in a vein. Post-thrombotic syndrome (PTS) is a painful condition that can develop following a venous thrombosis in one of the deep veins of the leg. While PTS is mainly thought to occur because of damage to the vein, other factors may be responsible for the development of this condition. This study will analyze genetic and biologic samples from participants of a previous study to examine other possible causes of venous diseases and PTS.

Endothelial dysfunction is assessed in patients with chronic venous insufficiency of lower limbs (grade C4 according to C - clinical manifestations, E - etiologic factors, A - anatomic distribution of disease, and P - underlying pathophysiologic findings (CEAP) classification) prior to and after endovenous surgical procedure, i.e. endovenous laser ablation of great saphenous vein, microphlebectomy of varicose branches. Two treatment groups (with and without additional pharmacotherapy) are compared.

Venous disease effects 25% of the population and most healthy people experience venous symptoms after standing for too long. The prime function of leg veins is drainage. Failure leads to a condition called chronic venous insufficiency (CVI) with leg pain, heaviness, swelling, varicose veins, ankle skin changes, eczema and occasionally venous ulcers. The aim of the study is to identify blood components (biomarkers) that occur during the damaging phase of standing versus the healing phases of lying recovery and with medical compression stockings. This will be achieved by taking a blood sample from the ankle region at 3 separate visits (days) to the vascular laboratory at Ealing Hospital. The first visit will be after supervised standing for 1 hour. The second after supervised lying and the third standing whilst wearing a medical compression stocking. Healthy volunteers will be compared to patients with advanced CVI. The potential importance to patients and the public is threefold. Firstly, biomarker profiles will be obtained in each of the 3 states to increase understanding in the cellular mechanisms of damage and recovery. In this way "bad" and "good" biomarkers can be identified. Secondly, drug treatments may develop from this research to adjust biomarkers towards a favourable profile. Thirdly, the success of treating CVI with surgery, venous intervention or compression can be monitored. Whilst it is known that relief of gravitational stress is the treatment for all forms of CVI, the mechanisms of repair and its discrimination from damage have yet to be identified.

Clinical study to evaluate impact on quality of life in patients with Chronic Venous Insufficiency during 4 weeks period of using SANKOM® Patent Socks

Validation of a new short Swedish patient reported outcome measure for superficial venous insufficiency. Analysis of its capacity to measure quality of life and its responsiveness to change caused by treatment.

Classic ballet dance is a demonstration of complex motor skills to be revealed in aesthetic combinations and repetitively, and it demands intensive use of the lower extremities within extreme of range of motion (ROM). Because ballet practice depends on advanced technical skills, it involves intensive physical training and causes an overload on the musculoskeletal system and foot deformities such as pes planus. Plantar venous pump (PVP) is a network of multiple venous vessels located between the muscles of the foot arch. PVP is considered the first step of venous return and discharges into the posterior tibial vein (PTV). PVP is reported to be active during gait while it is inactive in resting position. There are different views on the mechanisms enabling its activation 1-3. The general view is that during the stance phase of the gait, the flattening of the plantar arch with weight transfer causes the veins in this region to narrow and creates a force that pumps the blood up. The aim of this study is the investigation what kind of hemodynamic changes ballet training causes in the lower extremity

The main objective of this study is to obtain data to determine, in each individual with and without wearing compression stockings of different strengths and during different postures, the relationship between interface pressure and the area and circumference of the great saphenous vein and posterior tibial veins in the calf and ankle.