缺血性肾脏病(Ischemic renal disease,IRD)是指肾动脉重度狭窄阻塞(>60%),肾血流动力学改变引起肾小球滤过率降低和肾功能不全的慢性肾脏疾病[1]。慢性缺血性肾脏病已经成为危害公共健康的重大疾病之一。美国第三次国家健康和营养调查的结果显示11%的美国人患有慢性肾脏病,我国的调查提示40岁以上人群慢性肾脏病患病率高达8%~9%。近年来的流行病学调查显示,在50岁以上的肾功能不全患者中有22%为缺血性肾脏病,是中老年慢性肾功能不全的重要原因之 Ischemic renal disease (IRD) refers to severe renal artery stenosis (> 60%), changes in renal hemodynamics lead to decreased glomerular filtration rate and renal insufficiency in chronic kidney disease [1] . Chronic ischemic kidney disease has become one of the major diseases that endanger public health. The results of the third national health and nutrition survey in the United States show that 11% of Americans suffer from chronic kidney disease. Our survey suggests that the prevalence of chronic kidney disease in people over 40 years old is as high as 8% -9%. Epidemiological surveys in recent years show that 22% of patients with renal insufficiency over the age of 50 are ischemic kidney disease, which is an important cause of chronic renal insufficiency in the elderly