Abstract
Acute limb ischemia (ALI) is characterized by a sudden decrease or interruption of arterial blood flow in limb arteries. It is one of the most common emergencies in vascular surgery and interventional radiology because there is insufficient time for vascular angiogenesis to compensate the loss of perfusion. The reported incidence of ALI is approximately 1.9 cases per 10,000 individuals per year. Complications in ALI patients are high, even after surgical and/or endovascular treatment, with an amputation rate ranging from 10% to 30% and a risk of mortality approximately 15%–20% within the first year, due to comorbidities. ALI etiologies are due to three main causes: embolism, thrombosis, and vessel trauma with a thrombosis to embolism ratio of about 9:1. A peculiar picture of ALI is the thrombosis of popliteal aneurysm that requires a specific diagnostic and therapeutic approach.
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