Examination of CT: The beginning of occlusion in the plane of the renal arteries is seen, together with an abdominal aortic aneurysm. Imaging: Conventional surgical plan: 1. Abdominal aortic thrombus removal, endarterectomy, abdominal aorta – double femoral (iliac) artery diversion. Disadvantages: intraoperative reconstruction of the renal artery or avoiding renal function damage has been difficult, increasing the risk and difficulty of surgery. 2, first renal artery diversion, in the aortic surgery. Advantage: avoid the risk of renal embolism and renal ischemia, disadvantage: increase the operation time, increase the trauma, and unfavorable to the elderly and severe patients with cardiovascular and cerebrovascular diseases. 3, the use of intraoperative nephroprotective measures. Advantages: improve renal tolerance. Disadvantages: limited improvement of renal ischemia, limited improvement of blocking time. 4. Abdominal aortic dissection, retrograde thrombus extraction. Disadvantages: intraoperative bleeding, trauma, easy to lead to vascular rupture, thrombus residual, ineffective for hard spots. 5.Stent implantation. Advantages: minimally invasive, effective for some patients with aortic occlusion. Disadvantages: the disease cumulative renal artery, stent placement risk. At the same time, the patient’s long end occlusion, stent opening possibility is low, at the same time bilateral internal iliac arteries may not be able to be preserved, and the economic costs are expensive. Our doctors decided to apply other new interventional techniques to the patient’s surgical treatment plan after a detailed study of the patient’s condition. Therefore, after 3 days of preoperative catheterization and thrombolysis, it was found that the plane of vascular occlusion was shifted down by 3cm and both renal arteries were patent. This greatly reduces the difficulty of surgery and avoids the problem of renal artery ischemia. At the same time for the patient to reduce the cost and risk of treatment. The patient recovered well after the operation. Before the operation, some doctors also suggested that cannula thrombolysis could not dissolve blood vessels and had no obvious significance for the treatment of the disease. However, we still insisted on the use of thrombolysis before surgery, which has the following advantages: 1. The occlusion plane is shifted downward, avoiding the problem of renal artery ischemia, and reducing the difficult surgery to a routine surgery. 2. It can help to determine whether the material in the occluded lesion is a fresh thrombus, or a hard plaque. It is of guiding significance for the preparation of the second stage surgical program. The final result proves the correctness of the program. Therefore, in addition to the high, difficult, and major surgeries that can reflect a group’s level of treatment, the flexible application of various techniques and the use of individualized treatment for each patient are also factors that cannot be ignored.