以往急性肾功能衰竭(ARF)的病死率很高,约30％死于其并发症,如充血性心力衰竭、高血钾、感染和消化道大出血等.近年来,由于透析疗法的应用.ARF的病死率已明显下降.1 透析疗法的优点1.1 能迅速清除体内的水钠潴留,故对防治急性肾衰引起的充血性心力衰竭是较理想的疗法. In the past, the mortality rate of acute renal failure (ARF) was very high, about 30% died of complications such as congestive heart failure, hyperkalemia, infection and gastrointestinal bleeding, etc. In recent years, due to the application of dialysis therapy, ARF Of the mortality rate has dropped significantly.1 The advantages of dialysis therapy 1.1 can quickly clear the body of sodium and water retention, it is the prevention and treatment of acute renal failure caused by congestive heart failure is the ideal therapy.