摘要
研究铁蛋白 (ferritin ,Ft)检测在胸腹液渗、漏性质鉴别中的实验诊断价值。用常规法和Light标准作出胸腹液的初步渗、漏性质鉴别 ,并测定胸腹液Ft(PFt)及血清Ft(SFt) ,计算其比值 (PFt/SFt) ;根据临床资料将标本按病例分为 4组 ,比较各组Ft含量及PFt/SFt值 ;用常规法和Light标准的鉴别结果比较PFt及PFt/SFt值在胸腹液渗、漏性质鉴别上的敏感性和特异性。结果表明 ,结核性胸膜炎组、非结核性良性胸腹液组与恶性肿瘤组胸腹液中Ft浓度均大于 10 0 μg·L-1,PFt/SFt>0 .5 ;心衰与肝硬化组胸腹液中Ft浓度均小于 10 0 μg·L-1,PFt/SFt<0 .5 ;渗出液Ft明显高于漏出液 (P <0 .0 1) ;血清Ft无明显差异 (P >0 .0 5 )。界定值是 :胸腹液Ft 浓度为 10 0 μg·L-1及PFt/SFt为 0 .5。诊断的敏感性为 94 .2 % ,特异性为 87.0 %。渗出性胸腹液中Ft浓度大于 10 0 μg·L-1,PFt/SFt>0 .5 ,而漏出性胸腹液中Ft浓度小于 10 0 μg·L-1,PFt/SFt<0 .5。胸腹液Ft及其与血清Ft的比值在胸腹液渗、漏性质的鉴别中敏感性高和特异性强 ,具有实验诊断价值。
To explore the diagnostic value of measuring the level of ferritin in pleural and peritoneal effusion for differentiating exudates from transudates, 128 effusion samples were initially detected for differentiating exudates from transudates by traditional method and Light′s criteria.Ferritin in the effusions and serum ferritin were detected simultaneously, and the ratio of effusion ferritin (P Ft ) to serum ferritin (S Ft ) was counted. Based on the clinical data, the samples were divided into four groups and P Ft and P Ft /S Ft were compared. At the same time, the sensitivity and specificity of P Ft and P Ft /S Ft in differentiating exudates from transudates were compared with traditional method and Light′s criteria.The results showed that in the groups of tuberculous pleurisy,non-tuberculous, benign pleurisy, and malignant tumor, the concentration of Ft in the effusions was significantly higher than that in the group of congestive heart failure and cirrhosis; and the Ft in exudates was significantly higher than that in transudates( P <0.01),but it had no difference in serum( P >0.05).If the cut-off value was set up for Ft in the effusion as 100μg/L and P Ft /S Ft ratio as 0.5, respectively, the differentiating sensitivity and specificity were 94.2% and 87.0%, respectively.Conclusion was that the concentration of P Ft and P Ft /S Ft in exudates are higher than 100μg/L and 0.5,respectively. On the contrary, they are lower than the cut-off level in transudates. P Ft and P Ft /S Ft have high sensitivity and high specificity in differentiating exudates from transudates, and have great diagnostic value.
出处
《标记免疫分析与临床》
CAS
2003年第3期144-147,共4页
Labeled Immunoassays and Clinical Medicine
