View clinical trials related to Peripheral Arterial Disease.
Filter by:The purpose of this study is to investigate the current standard of wound care following vascular operations compared to to a negative pressure wound therapy (vacuum dressing) and the rate of surgical site infections (SSIs) in patients undergoing surgery to restore blood flow to the lower limb(s). Negative pressure wound therapy consists of a closed, sealed system that produces negative pressure (vacuum) to the wound surface. The device itself consists of open-cell foam that is sealed with an occlusive adhesive dressing (covers and sticks to the incision) and suction is maintained by connecting suction tubes to a vacuum pump and waste collector. The investigators objectives are to determine whether there will be any reduction in surgical site infection and this potential reduction will influence length of hospital stay, emergency room visits, antibiotic use and need for re-operation.
This study aims to demonstrate if remote ischaemic preconditioning (RIPC) may confer renal protection in patients undergoing peripheral angioplasty. Patients will be randomised to receive RIPC and biomarkers for renal injury will be analysed post procedure to determine if any protective benefit was obtained.
In patients with critical limb ischemia (CLI) and foot ulcers wound healing is an important goal which can normally only be achieved after sufficient treatment of the underlying ischemia (revascularization either by an operation, e. g. bypass, or a catheter intervention). After successful revascularization everything should be done to improve wound healing because this regularly takes weeks up to several months. One possibility to speed up healing could be treatment with the VADOplex device which delivers an automatic intermittent painless compression of the sole of the foot thereby increasing perfusion of the leg. This system can be easily operated by patients themselves and at home. Our goal is to prove that the VADOPlex system accelerates healing up and improves quality of life.
This randomized clinical study is intended to evaluate the use of Zilver PTX stents for treatment of thigh atherosclerosis. Research question: Is there an adjuvant benefit of angioplasty and stenting using the new paclitaxel eluting stent, Zilver-PTX, over risk factor modification and medical therapy alone in patients with stable, mild to moderate intermittent claudication caused by femoropopliteal lesions suitable for endovascular management.
Non-randomized multicenter post-market study to confirm the long-term safety and effectiveness of the CE-approved Camouflage-coated self-expandable RESISTANT Camouflage stent system for revascularization of de novo stenotic lesions in the superficial femoral artery in 100 compliant patients suitable for stent angioplasty. The CE-approved device will be used according to its intended use. Beyond the standard of care no further interventions are scheduled. Therefore, this trial is subject to the exception to the rule §23b of the German Medical Device Act (MPG), which includes the national implementation of EC directive 93/42/EEC.
Title: How does exercise improve the calf muscle in patients with poor blood supply to their leg? Purpose of the project: Patients with peripheral arterial disease have a poor blood supply to their lower leg. The reduced inflow prevents the leg from utilising nutrients and oxygen as easily as a healthy leg would. This causes pain when walking (intermittent claudication), which often occurs after a reproducible distance e.g. every 50 yards. These patients have a reduction in their quality of life as they feel embarrassed in social situations e.g. walking around town requires multiple breaks, so they tend to avoid this and isolate themselves more. One treatment for claudication is exercising until the pain comes onÍž which most are reluctant to do. Walking up to three times a week for an hour, can double most people's walking distances, but doesn't always. The reason why some improve with exercise and others do not remains unknown. This project will be the first randomised controlled trial of exercise in claudicants that focuses on the adaptations that occur in the muscle at a cellular level. We wish to compare muscle cells from a group that have exercised and group that have not. We will focus on the change in muscle cell size and function at present, and later progress to why and how this happens. Methods: We will take measurements at the start of the study (baseline), after 6 weeks and then 3, 6 and 12 months. These measurements will be of a patient's fitness, actual walking distances and blood samples. At the time of surgery, muscle from the calf will be taken from the affected leg. This will be processed at the University's biomedical science department to look at the different types of muscle fibre and how efficiently they are working.
To determine in patients with symptomatic femoropopliteal lesions whether percutaneous revascularization with paclitaxel-eluting balloon angioplasty (PEB) and provisional nitinol stent is superior with respect to the 12-month incidence of restenosis compared to treatment with systematic paclitaxel-eluting stent (PES) angioplasty
The primary objective of this prospective, Randomized, Controlled, Multicentre, Open Study is to investigate the inhibition of restenosis by the Paclitaxel-eluting Percutaneous transluminal angioplasty (PTA) balloon Freeway versus PTA alone in the treatment of de-novo occluded, stenotic or reoccluded, restenotic superficial femoral (SFA) or popliteal arteries.
XLPAD is an observational study designed to evaluate the effectiveness and use of stent and non-stent based therapies among PAD patients. The study will create a registry that will include entry of procedural and clinical follow-up information into an online data collection software, REDCAP.Data available since Jan 1 2005 will be included in the registry, until 14,000 patients have been included. The primary objectives of this observational registry study are to: 1. Compare stent and non-stent based outcomes defined as a composite of symptom driven target vessel revascularization (TVR), unplanned surgical revascularization of the target limb and need for target limb amputation through 12 months post-index procedure (Primary efficacy endpoint) 2. Compare stent and non-stent based outcomes defined as a composite of causes such as: death, myocardial infarction (MI), stroke, peri-procedural complications, target vessel revascularization (TVR) and unplanned surgical revascularization/amputation of the target limb through 12 months (Primary safety endpoint) 3. Compare stent and non-stent based change in walking distance, Rutherford category and/or ankle- brachial index (ABI) at 12 months compared to baseline (Primary clinical improvement endpoint) Approximately 14,000patients will be enrolled at approximately 60 sites worldwide. Enrollment in the observational study will be monitored in an effort to achieve at least 20% (and no more than 80%) of the population receiving stents as the initial treatment strategy. Follow-up visits by sites will be reported at 6 and 12 months after index procedure to collect data on treatment patterns and effectiveness, and outcomes. The follow-up procedures are not mandated by the registry protocol. Each site will be encouraged to enter follow-up information derived from clinically indicated follow-up visits. All events post-index procedure till the 7th month will be reported under the 6 month follow-up form and subsequent follow-up till the 13th month post-procedure will be entered on the 12 month follow-up form. Patient management and treatment decisions are at the discretion of the care team per routine clinical practice. The procedural aspects (including selection of stent type or non-stent based treatments) and follow-up are not mandated by the registry and will be up to the discretion of the operator and/or based upon the practice dictated by the clinical care of the patient. Therefore the study poses minimal risk to the patient.
A prospective case-control study was performed to investigate the effect of iloprost on the intraoperative flow volume in diabetic and non-diabetic patients as well as the effect of peripheral neuropathy in patients with peripheral arterial occlusive disease (PAOD) undergoing arterial reconstruction (primary endpoint). 100 patients undergoing femoral artery reconstruction or femorodistal bypass surgery were included. Prior to surgery, peripheral nerve conduction velocity was measured. Blood flow volume at the common femoral artery was assessed using a Doppler flowmeter (Sono TT FlowLab; ) before reconstruction, prior to the intraarterial application of 3000ng of iloprost and 5 and 10 minutes afterwards. Peripheral resistance units (PRU) were calculated as a function of mean systemic arterial pressure (MAP) and flow volume (VF): PRU = MAP (mmHg) / VF (ml/min).