Active clinical trials for "Peripheral Vascular Diseases"

Upper limb arterial disease is a rare condition compared to lower limb arterial disease. In the lower limb, chronic limb ischemia (CLI) is characterized by an intractable pain or an ulceration present for at least 2 weeks. Guidelines recommend to use Transcutaneous Oxygen pressure (TcPO2) measurement when a CLI is suspected to establish diagnostic with a threshold of 30 mmHg when ankle and toe systolic pressure are not available. In the upper limb, there is no guideline to define CLI. When there is a wound preventing finger pressure measurement, TcPO2 is theoretically indicated. However, there is neither standardized site to measure nor threshold value of TcPO2. The investigators hypothesized that normal TcPO2 may be different in the upper limb and that threshold value for CLI may also be different compared to lower limb. The investigators planned a study with two parts: Prospective study of normal TcPO2 value in healthy volunteers Retrospective analysis of patients with upper limb arterial disease to approach the TcPO2 threshold of CLI allowing healing in upper limb

The study will be designed as a prospective clinical trial. Patients scheduled for lower limb arterial bypass surgery will be randomly allocated for treatment with spinal anesthesia associated with spontaneous ventilation (nasal cannula with supplemental oxygen - Group 1) or treatment with general anesthesia under controlled mechanical ventilation (tidal volume 6 to 8 ml / kg of the predicted body weight and PEEP of 5 cmH2O - Group 2).

Non-interventional study aiming to ascertain the mechanical properties of human saphenous and popliteal vein tissue.

Single-centre prospective cohort study of patients presenting with severe limb ischaemia (SLI). The primary outcome measure will be 12 month major amputation rate. A historical cohort of patients identified retrospectively will be the comparitor group used to assess the impact of a newly-established rapid-access limb salvage clinic. Primary aim: - Determine the proportion of patients with SLI undergoing major lower limb amputation within 12 months of presentation. Secondary aims: Assess clinically important short-, medium- and long-term outcomes in those undergoing and not undergoing amputation Prevalence and degree of frailty and cognitive impairment Pevalence and degree of cardiac disease (detected by stress MRI) Establish a biobank for future biomarker analysis Investigate the role of frailty and cognitive assessments, cardiac MRI and biomarkers in risk-stratification of patients with SLI

This registry is created under the sponsorship of the Outpatient Endovascular and Interventional Society (OEIS) to monitor the clinical course and treatment outcomes of patients undergoing office-based endovascular procedures.

The purpose of this study is to evaluate the genome-wide association for the development of collateral circulation for patients with coronary or peripheral artery disease and to develop the molecular genetic treatment model based on genome-wide association data.

A research project capturing experiences of patients with critical limb threatening ischemia, with the ultimate goal of setting new standards for diagnosing, describing detailed patient-centered outcomes, and evaluating the variability in therapeutic approaches and their association with outcomes.

The objective of the proposed study is to define independent parameters for the diagnostic assessment of the perfusion situation of the calf muscle based on multispectral optoacoustic tomography (MSOT) in a cross-sectional collective of patients with PAD in Fontaine stage II (intermittent claudication) and a healthy control collective (study group 1). The results will be validated using an independent validation group (study group 2).

The purpose of this project is to evaluate the effectiveness of a virtual diabetes group visits on patients with type 2 diabetes mellitus (T2DM).

The goal of the proposed pilot study is to evaluate the feasibility of a new leg heat therapy system treatment for patients with lower extremity PAD. The new system is comprised of leg-length water circulating pads surrounded by a separate pneumatic compression outer garment that compresses the pads against the skin for efficient heat transfer. The new leg garment is easily closed with a zipper. The air chambers automatically adjust the amount of air inflation enabling use of the garment independent of patient leg size. Six patients with PAD will be asked to complete daily (90 min/day) home-based leg HT for 12 weeks using the newly developed system. The primary study outcome is the change from baseline in walking performance on the 6-minute walk test at the 12-week follow-up. Secondary outcomes include plantar flexion power, as assessed using isokinetic dynamometry, sit-to-stand muscle power and perceived quality of life.