Mr. Zhang two years ago began to feel cold lower limbs, numbness, leg cramps, walking distance of less than 200 meters after the calf belly swelling pain, not to mention going out, even from home to buy a vegetable market nearby are to stop to rest a foot, pounding legs and other swelling pain better before walking, winter symptoms more serious, has been thought to be rheumatic diseases caused by the so-called “old cold leg “The symptoms are worse in winter. See a few hospital clinics one after another, a lot of medicine, experienced acupuncture and physical therapy, but the symptoms did not reduce, this year, with the cold weather, Mr. Zhang “old cold leg” symptoms aggravated, sleep at night also feel numbness, pain in the lower limbs, legs down or sitting when the pain slightly better, often need to hold the knee and lying until dawn, painful! Recently, Mr. Zhang came to Changzhou First People’s Hospital for vascular surgery, and after physical examination, he was diagnosed with “lower limb arteriosclerosis occlusive disease” and was hospitalized. Through the lower extremity artery CTA and other examinations to clarify the indications for surgery, the choice of minimally invasive surgery – arterial balloon dilation plus stenting, coupled with targeted drug treatment, soon after the operation, Mr. Zhang felt his calves obviously “warm” up, cold, numbness, swelling and pain and other symptoms significantly alleviated, sleep at night, a week after recovery from the hospital. Every day to adhere to walking exercise, walking a mile away has basically no effect. What is “lower limb arteriosclerosis occlusive disease”? It is a clinical manifestation of chronic ischemia of the lower extremities due to the formation of atherosclerotic plaques on the inner wall of the arteries, which proliferate and protrude into the lumen of the blood vessels, causing the narrowing and even occlusion of the blood vessels, resulting in the supply of blood that cannot meet the needs of the lower extremities. With the continuous improvement of people’s living standard, the change of diet structure, the progress of population aging, and the continuous improvement of vascular surgery treatment level, the incidence of this disease has a significantly higher trend, according to statistics: the incidence rate of 10% in people over 70 years old, and the incidence rate of 1%-2% in 40-70 years old, and 100,000 people receive surgical treatment every year. Smoking, hypertension, diabetes, hyperlipidemia, etc. are the main causative factors of “lower limb atherosclerosis occlusive disease” What are the manifestations of lower limb atherosclerosis? The progression of atherosclerosis is a chronic process, which is generally divided into four stages according to the degree of lesion. The first stage is the mild complaint stage. Patients only feel that the skin temperature of the affected limb is reduced, afraid of cold, or mild numbness, easy to fatigue after activity, extremity pediculosis prone to infection and not easy to control. The second stage, intermittent claudication period. When the patient is walking, due to ischemia and hypoxia, the more common area is the muscles of the lower leg that produce spasm, pain and fatigue, and it is necessary to stop walking and rest for a moment before the symptoms are relieved and the activity can be continued. If the symptoms are repeated after walking a certain distance again, the symptoms recur. Intermittent claudication of the lower leg is the most common symptom of ischemic lesion of the lower extremity. The third stage, the resting pain stage. When the lesion develops further and the establishment of collateral circulation is severely insufficient, the affected limb is in a rather severe ischemic state, and pain, numbness and abnormal sensation are felt even at rest. The pain is usually predominant at the extremity. The fourth stage, tissue necrosis stage. It mainly refers to the continuation of the lesion to the occlusive stage, where the collateral circulation is very limited and symptoms of nutritional disorders appear. Prior to the development of ulceration or gangrene, the skin temperature decreases and the color is dark purple. Early gangrene and ulcers often occur in the toes, and as the lesion progresses, infection, gangrene can gradually progress upward to the foot, ankle or lower leg, and in severe cases, systemic symptoms of toxicity can occur. Only amputation can be performed to save life. When middle-aged and elderly patients, especially those with hypertension, hyperlipidemia, hyperglycemia, coronary artery disease, and long-term smokers present with the above clinical manifestations, they should go to the hospital in time to be diagnosed by Doppler ultrasound, MRA, CTA, DSA, etc. If the lesion is early, the symptoms can be improved through lipid-lowering, sugar-lowering, blood pressure control and other medications, smoking cessation and other bad lifestyle habits, and exercise. If the lesion is more serious and intermittent claudication, resting pain, skin necrosis and other conditions have appeared, we should go to a regular specialized hospital for consultation and treatment as soon as possible and make a treatment plan according to the specific condition. Treatment includes surgical procedures such as autologous or artificial vascular bridging, vascular interventional endoluminal molding, etc. With the development of medical technology, a series of vascular surgery interventional techniques such as catheter perfusion thrombolysis, endovascular balloon dilation, stent implantation, endovascular excision and suction have become the mainstream and preferred treatment for lower limb atherosclerosis occlusive disease. It is less traumatic, less painful and faster recovery.