View clinical trials related to Chronic Lower Limb Ischemia.
Filter by:The fascia iliaca block (FIB) is an anterior approach to block the lumbar plexus. It disturbed mainly to the anterior region of the thigh by blocking the femoral nerve (LFC) and the lateral femoral cutaneous nerve. Moreover, FIB may possibly be extended to the obturator, ilioinguinal, genitofemoral, lateral cutaneous nerve of the thigh and over the psoas muscle but, rarely reaches the lumbar plexus. The fascia iliaca compartment could be detected by bony landmarks palpation and the loss of resistance technique. Feeling two tactile ''pops'' due to loss of resistance occurred during the needle passage through the fascia lata and the fascia iliaca. Ultrasound (US) guidance of FIB will increase the success rate and the efficacy of sensory blockade by decreasing the needed local anesthetic amount.
Chronic lower limb ischemia due to atherosclerosis causes significant morbidity especially in elderly: the prevalence of asymptomatic obstructive peripheral atherosclerosis among 40-74 old is 4-22%. The prevalence of its milder symptomatic manifestation, intermittent claudication among 40 years old men is about 1% and among 70 years old it is 7%. In about 10% of the patients the ischemia worsens to threat the vitality of the limb. Although intermittent claudication has a benign prognosis and can often treated conservatively, more severe forms with extensive arterial obstructions require revascularization, either open surgical or endovascular. Surgical bypass operations are currently the standard reference for treating long femoral artery obstructions. Surgical bypass operations are accompanied by significant acute complications and late adverse effects, especially in patients with associated cardio-cerebrovascular and pulmonary diseases, and less invasive, safe, and effective endovascular therapies are seeked for. The long term patency rates of infrainguinal balloon angioplasty (PTA) vary largely in different studies but they are mostly poor when long femoral arterial obstructions have been treated. Drug eluting stents have shown great promise in coronary artery interventions. The purpose of this study is to compare Paclitaxel eluting Zilver PTX nitinol stent (Cook INC) with bypass surgery using PTFE graft to proximal popliteal artery in the treatment of long femoral artery obstructions (total length of 10-25 cm) in a prospective, randomized, Finnish multi center trial with consecutive claudicant and chronic critical ischemia patients. The aim is to randomize altogether 400 patients during about two years in five universities and in 2-3 central hospitals. The primary end point is patency at 24 month follow up. Secondary end points are primary success at patient discharge, complications, 30-day mortality, target lesion revascularization, quality of life, and economical analysis.