All 120, 30 and 40 patients with ascites caused by liver cirrhosis, tuberculosis and carcinoma respectively were collected. SAAG≥ 11 g/L and TP ＜25 g,/L as a standard in diagnosing liver cirrhosis, the positive rate was 98％ , false positive rate was 0, false negative rate was 2％ in liver cirrhosis patient. In tuberculosis patients, there was no SAAG ≥ 11 g/L and TP ＜ 25 g/L patient. In carcinoma patients, SAAG≥ 11 g/L and TP ＜ 25 g/L were 2.5％ , so SAAG≥ 11 g/L and TP ＜ 25 g/L might be very useful in diagnosing the ascetes of liver cirrhosis.%回顾性调查我院120例肝硬化腹水患者SAAG及腹水总蛋白水平,并以30例结核性腹膜炎、40例癌性腹水作对照.结果 发现,以SAAG≥11 g/L且腹水总蛋白＜25 g/L为标准,判断为肝硬化腹水,其准确率为98%,无假阳性,假阴性率为2%;结核性腹膜炎患者中无SAAG≥11 g/L且总蛋白＜25 g/L患者;癌性腹水SAAG≥11 g/L且总蛋白＜25 g/L占2.5%.我们认为,以SAAG≥11 g/L且腹水总蛋白＜25 g/L为标准,判断为肝硬化腹水,其准确率为98%,无假阳性,假阴性率为2%;结核性腹膜炎患者中无SAAG≥11 g/L且总蛋白＜25 g/L患者;癌性腹水SAAG≥11 g/L且总蛋白＜25 g/L占2.5%.我们认为,以SAAG≥11 g/L且腹水总蛋白<25 g/L,可有效判断肝硬化腹水.
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