目的：回顾分析血浆置换在慢性重型肝炎治疗中的疗效和影响预后的因素。
Objective to analyze retrospectively the efficacy of plasma exchange on chronic gravis hepatitis and the factors influencing prognosis of the patients.
在肝硬化基础上发生的重型肝炎患者血浆置换的疗效低于在慢性肝炎基础上发生的重型肝炎（P<0.01）；
The plasma exchange's efficacy for chronic severe hepatitis patients with underlying liver cirrhosis were lower than those with chronic hepatitis(P<0.01).
方法2 0 2例慢性重型病毒性肝炎患者在不同病期进行肝穿刺作肝脏病理检查。
Methods Liver biopsies were performed by hepatocentesis in different stages of the courses in 202 patients with chronic viral hepatitis gravis.
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