急性肾功能衰竭(ARF)在新生儿发病率高于儿童,导致ARF的多数原因是肾前性的,也可由肾实质性损伤或肾后性梗阻引起。据报道,新生儿ARF病死率高达25%～50%,有实质性肾损害患儿 Acute renal failure (ARF) has a higher incidence of neonatal morbidity than children. The majority of causes of ARF are prerenal and can also be caused by renal parenchymal or postrenal obstruction. It is reported that neonatal ARF mortality rate as high as 25% to 50%, with substantial renal damage in children