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目的探讨老年急性肾功能衰竭（ＡＲＦ）的病因特点及其与预后的关系。方法对７４例老年（年龄大于６０岁）ＡＲＦ的病因特点、治愈率、肾功能恢复速度和病死率等指标进行回顾性分析，并与同期收治的１５６例非老年（小于６０岁）ＡＲＦ进行比较。结果老年ＡＲＦ约占所有ＡＲＦ的１／３，缺血是引起ＡＲＦ的最主要病因。老年ＡＲＦ恢复慢，治愈率低，而病死率高。结论积极防治原发病是改善老年ＡＲＦ预后的关键。
Objective To investigate the etiological characteristics of elderly acute renal failure (ARF) and its relationship with prognosis. Methods Retrospective analysis was performed on the etiological characteristics, cure rate, recovery rate of renal function and mortality of 74 elderly ARF patients (older than 60 years old), and compared with 156 non-elderly (less than 60 years) ARF patients admitted in the same period . Results The elderly ARF accounted for about 1/3 of all ARF, ischemia is the most important cause of ARF. Elderly ARF recovery is slow, the cure rate is low, and the case fatality rate is high. Conclusion The active prevention and treatment of primary disease is the key to improve the prognosis of elderly ARF.