Femoropopliteal Artery Occlusion Clinical Trial
Official title:
Clinical and Economic Outcome of Endovascular Therapies in Chronic Femoropopliteal Occlusive Disease With Severe Calcification (The Evolution Study): a Prospective, Multi-centerļ¼Observational Study
This study is a prospective, multicenter, real world, observational study, which aims at evaluating the safety, efficacy and economic cost of endovascular treatments for endovascular therapies in chronic femoropopliteal occlusive disease with severe calcification. It is estimated that 400 subjects diagnosed with chronic femoropopliteal occlusive disease with severe calcification and receive endovascular treatments will be enrolled in eight centers nationwide from January 2021 to December 2022. All the subjects will be under follow-up for two years. There is no restriction on the endovascular techniques. The primary outcomes include the technical success rate of each endovascular techniques and the reintervention rate driven by lesions' clinical symptoms.
Arteriosclerosis obliterans (ASO) is a common disease in middle-aged and elderly people, which affects up to 30% people who are over 70 years in the general population. Its symptoms include claudication, rest pain and ischemic tissue loss depending on its severity. Nowadays, endovascular treatments have become the first-line therapy. If ASO is combined with severe calcification, the treatment will be much more challenging. The efficacy of plain old balloon angioplasty is limited. New devices including drug-coated balloon, intravascular Lithotripsy, directional atherectomy, Supera stent and drug-eluting stent offer another chance and better prognosis. The data of these new devices, however, are mainly from low quality evidence. Therefore, we start this prospective, multicenter, real world, observational study, providing new data on the safety, efficacy and health economics evaluation of endovascular treatments for endovascular therapies in chronic femoropopliteal occlusive disease with severe calcification. ;
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