Abdominal aortic aneurysm mostly occurs in the elderly over 60 years old According to the introduction, with the aging of China’s population, changes in food structure, reduced exercise and increased work pressure, the formerly rare disease aortic aneurysm has become more and more common, and its incidence has increased from 5/100,000 in the past to 23/100,000 now, which is close to the incidence in the United States and other western countries. Aneurysm is a pathological expansion of large arteries in human body such as thoracic aorta, abdominal aorta and iliac artery, when it exceeds 1/3 or more of the normal caliber, it is a large aneurysm with great risk of rupture, among which abdominal aortic aneurysm is the most common, accounting for more than 80%, mostly occurs in elderly people over 60 years old, and is closely related to hypertension and atherosclerosis. Most patients with abdominal aortic aneurysms are discovered during a health checkup. A pulsating abdominal mass may be the only clinical symptom in patients with abdominal aortic aneurysm. When patients present with chest pain and abdominal pain, it often signals a ruptured aneurysm or the formation of a coarctation. Aneurysm rupture is the main hazard of large aneurysms and is often fatal. “In general, large aneurysms, high blood pressure, or concurrent chronic bronchitis and emphysema are risk factors for aneurysm rupture.” Once diagnosed, early surgery should be performed Aneurysm is a disease of abnormal arterial structure, which cannot be cured by relying on drugs at present, and surgery is the only effective treatment method. In recent years, it is believed that once a large aneurysm is clearly diagnosed, it should be actively treated surgically regardless of the size of the aneurysm. First, because the chance of aneurysm rupture increases with time, more than 90% of patients with open ruptured abdominal aortic aneurysms often die within a few hours after the onset of the aneurysm. Second, the risk of surgery gradually increases as patients age and their organ function decreases. Once again, the distance from a large hospital with adequate facilities makes aggressive surgical treatment even more important. This is because once the aneurysm ruptures in such patients, there is almost no possibility of salvage survival. Senior patients can receive minimally invasive treatment” Traditional surgery, i.e. aneurysm removal + artificial vessel replacement, is more traumatic and has a higher complication rate (the complication rate of abdominal aortic aneurysm surgery is about 27%). The majority of patients with large aneurysms are on average over 65 years old and are often associated with significant organ insufficiency. Most elderly patients are often lost to treatment because they have difficulty withstanding the traumatic blow of conventional surgery.” In the early 1990s, Parodi, an Argentinean doctor, invented the stent with membrane and has since cured thousands of patients with large aneurysms with its minimally invasive advantages. The country has been applying this technology since 1997, and it has gained momentum in recent years. The principle of the procedure is that a metal stent covered with artificial blood vessels is delivered to the aneurysm cavity through a 2-4 cm diameter incision at the root of the thigh through a specially designed delivery device, isolating the aneurysm cavity so that the blood flow is no longer in contact with the aneurysm wall and flows to the distal side through the artificial blood vessel stent. The original aneurysm cavity is cured by gradual atrophy of the aneurysm body because it is no longer under pressure from blood flow and a thrombus is formed. The procedure can be performed under general anesthesia, epidural anesthesia or even local anesthesia. The operation is less risky, with fewer complications and faster recovery after surgery. This allows patients with large aneurysms who were previously unable to undergo traditional surgery due to old age and frailty, and with significant organ insufficiency, to have the opportunity to be treated and to extend their lives.