Arterial embolism is a pathological process in which an embolus is dislodged from the wall of the heart or proximal artery, or enters the artery from outside and is pushed distally by the blood flow, blocking the arterial blood flow and causing ischemia or necrosis of the limb or internal organs. In peripheral arterial embolism, the affected limb shows pain, pallor, loss of distal arterial pulsation, syncope, numbness and motor impairment. The degree of diagnosis is based on clinical signs and examination findings, and acute arterial embolism can be divided into 3 categories: 1. mild ischemia: such patients have severe intermittent claudication, mild resting pain, and often a few days from the onset to the consultation, with no motor and sensory impairment except for pallor and decreased skin temperature of the affected limb. The distal end of the arterial occlusion is not yet secondary to thrombosis or is small in extent, with abundant collateral circulation. Such patients can have more time to do the corresponding examination and pre-surgical preparation, and can be considered for conservative treatment with anticoagulation and thrombolysis according to their specific conditions. 2.Moderate ischemia: Most of the clinical patients belong to this category. Resting pain is obvious but tolerable, with mild sensory impairment, such as decreased sensitivity to light touch, but no motor impairment, which requires active pre-surgical preparation and timely surgical removal of embolus. 3.Severe ischemia: loss of sensory and motor functions of the affected limb, stiffness of gastrocnemius muscle, purple spots or blisters on the skin, etc., often require amputation to save life. Some scholars point out that patients with severe ischemia, such as action vein embolism reconstruction, the morbidity and mortality rate is as high as 50% to 75%. If the patient’s general condition allows, no renal insufficiency, only limb sensory and motor dysfunction but no muscle stiffness, myofascial compartment syndrome and skin purple spots, Fogarty catheter embolization is still safe and effective for most patients, but most of the postoperative period often leaves nerve injury sequelae such as numbness of the affected limb and foot drop.