Abstract：
Chronic limb-threatening ischemia is defined as ischemic rest pain or tissue loss (eg, ulceration/gangrene) that has been present for greater than 2 weeks. Workup includes a careful history, physical examination focused on evaluation of pulses and wounds, lower extremity noninvasive vascular studies (eg, ankle-brachial indices, toe pressures), saphenous vein mapping, and imaging of the lower extremity arterial anatomy (eg, computed tomography, magnetic resonance, or subtraction angiography) if a revascularization intervention is planned.
摘要：
慢性威胁肢体缺血定义为缺血性静息疼痛或组织丢失（例如，溃疡/坏疽）存在超过2周。整理包括一个仔细的历史，体检的重点是评估脉搏和伤口，下肢无创血管研究(如，踝臂指数,脚趾压力)，大隐静脉标测,和下肢动脉解剖成像(例如，计算机断层扫描,磁共振,或减影血管造影），如果计划进行血运重建干预。
