View clinical trials related to Peripheral Vascular Diseases.
Filter by:A prospective, non-randomized, international, multi-center study to evaluate the safety and effectiveness of the Pantheris OCT-Imaging System to perform atherectomy in In-Stent Restenotic (ISR) lesions in lower extremity arteries.
Over the past years, arterial closure systems have tended to replace manual compression to ensure hemostasis at femoral artery puncture points. Arterial closure systems reduce hemostasis and patient immobilization times, thus enabling early resumption of walking. These devices have contributed extensively to the development of outpatient stays for cardiology, vascular and neuro-radiology procedures. However, main arterial closure devices use different technology to close the arterial puncture point. For some, hemostasis is achieved by sealing the arteriotomy between two discs (an inner and an outer). For others, they are designed to close puncture sites delivering a single monofilament polypropylene suture mediated by needles. The investigators hypothesis is based on a different efficacy between both arterial closure devices for peripheral arterial disease (PAD) patients.
This is a prospective, multicenter, single-arm clinical trial to evaluate safety and efficacy of a steerable catheter in the establishment of vascular intervention access. five centers participate in this study. The total enrollment number is 68. In the procedure of vascular interventional surgery or angiography diagnosis, the steerable catheter are used to building vascular interventional access. Evaluate the safety and efficacy of the product, by the observation and record the relative index of subjects intraoperative and postoperative (discharge) before and after 30 days .
The vascular surgery is a highest risk procedure when considering postoperative complications associated with the cardiovascular system. The leading clinical presentation is acute hemodynamic decompensation. However, one of the possible pathomechanisms might be repolarization disturbances. Many of perioperative risk factors of cardiac complications are modifiable. The identification may help in the global perioperative risk reduction. Aim: The aim of the study was an identification of the factors which may release clinically overt repolarization disturbances. Methods: The study group consisted of 100 patients, diagnosed with abdominal subrenal aortic aneurysms or peripheral arterial disease scheduled for an elective "open" vascular surgery procedure. The authors investigated whether age, gender, comorbidities or some perioperative factors (including hemodynamic, metabolic or genetic) were related to the occurrence of clinically concealed repolarization disturbances or clinically disclosed cardiac complications in postoperative time up to 30 day and one year after vascular surgery procedure.
Over the past years, arterial closure systems have tended to replace manual compression to ensure hemostasis at femoral artery puncture points. Arterial closure systems reduce hemostasis and patient immobilization times, thus enabling early resumption of walking. These devices have contributed extensively to the development of outpatient stays for cardiology, vascular and neuro-radiology procedures. According to certain studies however, it would appear that arterial closure devices do not present any greater benefits than manual compression in terms of hemostasis and complications. Moreover, the use of increasingly small diameter instruments would tend to render manual compression sufficient. Finally, the use of these devices generates additional costs. The purpose of our prospective study is to evaluate the feasibility and safety of same-day discharge after manual compression in patients treated for peripheral artery disease by endovascular technique with 5F sheath.
This study evaluates the effects of Aspirin and thienopyridine resistance in relation to clinical cardiovascular outcomes as the genetic predictors of, and outcomes associated with aspirin and thienopyridine resistance in patients with peripheral arterial disease (PAD) currently remain unknown.
This trial is a pivotal, placebo-controlled, double-blind, parallel-group, adaptive trial conducted in subjects with DM and CLI Rutherford Category 5. Minimisation will be used to assign eligible subjects in a 2:1 ratio to receive a single intra-arterial administration of REX-001 or matching placebo into the index limb.
Primary objective: To document change in translesional pressure gradients (TLPGs) and ratios (fractional flow reserve) using the NAVVUS RXi catheter following endovascular treatment for symptomatic lower extremity peripheral arterial disease. Secondary objectives: - Evaluation of correlation of the ABI and TBI and TLPGs at baseline and following endovascular therapy - Evaluation of the correlation between the change in WIQ, TCOMs, wound size and change in TLPGS - Evaluation of correlation between lesion severity by QVA (MLD, % diameter stenosis) and TLPGs - Evaluation of baseline MLA, MLD, plaque burden by intravascular ultrasound (optional) and TLPGs
Peripheral artery disease (PAD) affects 8-18 million in the US and is an economic burden, currently estimated to be greater than cancer and heart disease. Older age (> 65 years), smoking, diabetes and kidney diseases are some risk factors associated with PAD and are known to have increased morbidity and mortality.Early detection is critical for mitigating PAD progression. Ankle-brachial index (ABI) testing is recommended by the US Preventative Services Task Force as an affordable and effective screening tool for evaluating PAD risk. QuantaFlo™ (Semler Scientific, Inc.) is a novel, noninvasive, 510K FDA approved digital device that is used as a screening tool to measure ABI of patients at risk of PAD. This single center prospective clinical trial will evaluate the sensitivity and specificity of digital ABI in detecting PAD using color Doppler ultrasound and 'gold standard' angiography as reference. Specifically in patient undergoing dialysis and who cannot undergo ABI using pressure cuffs dialysis grafts/ fistulae in the arms, we will evaluate the value of digital ABI in detecting PAD.
The NVS Therapy is being studied to evaluate the safety and efficacy of retention of acute luminal gain, leading to acute hemodynamic improvement in superficial femoral and popliteal arteries with reference vessel diameters between 3.5 and 7.0 mm and lesion lengths between 36 and 96mm. The system is intended for use in patients with de novo lesions in the superficial femoral and proximal popliteal arteries.