Vessel Recoil in Specific CLTI Populations

Chronic limb threatening ischemia (CLTI) represents the most advanced stage of peripheral arterial disease (PAD) and is characterized by ischemic rest pain, non-healing wounds, or ischemic gangrene. High-risk PAD populations including patients with end-stage renal disease and or diabetes also experience worse outcomes with significantly increased rates of amputation and mortality. Although some patients with PAD are best treated with a combination of medical management, exercise and lifestyle modification, revascularization is indicated in those with advanced stages of disease and particularly in the presence of CLTI. Revascularization of below-the-knee (BTK) arteries is required for most patients suffering from CLTI, but treatment faces numerous challenges comprising calcification, small vessel size, long-lesion length and early elastic recoil. With regard to these challenges, numerous innovative techniques and devices have been developed within the past decades to optimize endovascular treatment of BTK vessels. The Spur Peripheral Retrievable Scaffold System (Spur) was developed to directly address many of these pitfalls of infrapopliteal arterial disease. The premise of the design of the Spur is to provide temporary mechanical scaffolding and to prepare the vessel for treatment with a drug-coated balloon (DCB) to enhance drug absorption by creating channels in the endothelium by the deployed Spur. The objective of this study is to perform a prospective, single-center, s…

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