View clinical trials related to Venous Insufficiency.
Filter by:This study seeks to determine if compliance with compression therapy is increased in patients with healed venous insufficiency ulcerations when lower levels of compression therapy are prescribed. This study will measure compliance with compression therapy at low levels of compression. It will also seek to determine if compression therapy aids in the prevention of venous insufficiency ulcer recurrence.
Aim of the study: To investigate if there is a differences in expression of inflammatory markers in venous wall and blood among patients treated with Detralex and those not treated with Detralex (control group).
Chronic wounds cause significant morbidity and cost our healthcare system millions of dollars each year.Their healing is slowed by biofilms, communities of bacteria surrounded by a protective layer that stops the immune system and antibiotics from getting close enough to kill them. The investigators will develop a new strategy to destroy biofilms using a protein made from bacteria that live on our skin.The Staphylococcus epidermidis Esp protein will be used to destroy Staphylococcus aureus biofilms, the most common bacterium in chronic wounds. The investigators hypothesize that the use of the Esp protein will breakdown S. aureus biofilms, decrease bacterial colonization of chronic wounds and improve healing times.
This is a single center, prospective, non-randomized, feasibility study for the evaluation of safety, efficacy and performance of the Sapheon™ Closure System for the treatment of incompetent saphenous veins.
To establish if there are venous obstructions in patients with neurodegenerative disorders
Volumetry is essential for the diagnosis and follow-up of patients with limb edema. The objective of this project is the validation of real-time reconstruction and calculation of limb volume using a 3D laser scanner. Water - displacement volumetry (water-filled boot) is the reference method with known accuracy and reproducibility, but is not commonly used in clinical practice because it is cumbersome, difficult, and time-consuming. The most commonly used method remains segmental limb perimetry with a tape measure, followed by volume calculation using the truncated cones formula, thus excluding de facts extremities (hands and feet) which can neither be likened to cones nor easily measured. Quantification limb volume and volume changes is essential for the diagnosis and follow-up of patients with chronic venous insufficiency or lymphedema, two very common pathological conditions. It is mandatory for the evaluation of therapeutic approaches. The present study will use an innovative technology of volume acquisition by freehand laser scanning with a hand-held camera with Quantification limb volume and volume changes is essential for the diagnosis and follow-up of patients with chronic venous insufficiency or lymphedema, two very common pathological conditions. It is mandatory for the evaluation of therapeutic approaches. The present study will use an innovative technology of volume acquisition by freehand laser scanning with a hand-held camera with real-time 3D reconstruction. Its advantages are non-contact, accurate and detailed quantification of edema, including extremities, allowing to assess the magnitude and topography of physiological, pathological, or treatment - induced volume changes. This approach will ultimately provide data that will used for designing personalized limb compression ortheses.
The primary objective for this clinical study is to assess the role of the CE Marked Sapheon Closure System in closure of incompetent great saphenous veins "GSV" in a routine clinical setting.
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.
Multiple Sclerosis (MS) is a demyelinating disease of the central nervous system (CNS) that often results in reduced muscle function which produces fatigue, weakness and a decline in daily mobility. Although the underlying cause of the disease is unknown a possible contributory mechanism is chronic cerebrospinal venous insufficiency (CCSVI). Post-mortem studies and magnetic resonance venography have shown a strong relationship between the cerebral venous system and MS cortical plaques. From this a role for CCSVI in MS has been suggested: venous malformations that result in venous hypertension, pressure on the blood brain barrier and subsequent inflammation due to leakage of haemosiderin into the parenchyma. This provokes an immune response which results in neurodegeneration. A procedure known as percutaneous venoplasty whereupon a balloon is inserted and inflated into the jugular vein has been developed to improve this drainage of the CNS, reduce venous hypertension and improve symptoms associated with MS. Although this procedure is widely practiced throughout the world it has yet to be fully accepted as it needs to be supported by evidence based clinical trials. As such NHS National Institute for Health and Clinical Excellence (NICE) recently issued a consultation document to determine more about the procedure's clinical safety and efficacy. A common concern raised is the ability to prevent any possible placebo effect and like any other clinical trial should offer a sham procedure to a matched control group. The difficulty with this option are the ethical issues associated with an invasive sham treatment and also the practical issues of masking a potentially painful treatment such as venoplasty. One option is to have blinded neurological assessment of patients who have either been treated with venoplasty or had no active treatment. Another option is to use dependent measures that are unaffected by motivational or psychological influences which avoids any placebo effect issue. One such dependent measure is motor unit firing behaviour whilst contracting at a submaximal target force. Typically clinicians have used this to manage motor disorder patients but have used cumbersome invasive technology that can only measure a few motor units with limited accuracy. However, De Luca et al recently developed a high density surface electromyographic (HDsEMG) system that can measure 30-40 motor units with 92-97% accuracy. From this it has been proposed as a highly effective tool for evaluating efficacy of therapeutic interventions for upper motoneuron disorders such as MS. Accordingly the investigators propose to use a repeated measures design on an experimental (receiving venoplasty) and control (not receiving venoplasty) MS groups (6 patients in each group) to determine the effect of the treatment on muscular function, mobility and fatigue. This would be combined with independent blinded neurological assessment of the two groups of patients. This design enables us to achieve two aims: 1. Acute neuromuscular response to the treatment 2. Chronic response to the treatment (6 weeks) to determine the effect on muscular function, mobility and fatigue.* Methods - Four (first two to establish baseline variability of measures) repeat visits to the laboratory at University of Stirling to establish neuromuscular measures: 1. HDsEMG pre and post tetanic induced fatigue 2. Muscle fibre conduction velocity as previously described (Hunter et al., 2011) 3. Ultrasound for CCSVI determination on visits 1 and 3 4. DEXA scans for alterations in body composition on visits 2 and 4 - With the use of accelerometers monitor free living activity on days 0-7 and 9-42 (post venoplasty).
This trial is a prospective, randomized, controlled, multi-center study of subjects presenting with chronic lower extremity venous ulcers. The study will evaluate the safety and effectiveness of MIST Therapy® plus standard of care (MIST+SOC) compared to Standard of Care (SOC) alone in the treatment of lower extremity venous ulcers.