检测胸水中CEA、CA125、CA153及CA199对肺癌的诊断价值

目的　探讨检测胸水中癌胚抗原 (CEA)、癌抗原 12 5 (CA12 5 )、癌抗原 15 3 (CA15 3 )及癌抗原 199(CA199)在肺癌诊断中的应用价值。方法　采用化学发光法对 5 2例肺癌患者的胸水、血清及 5 0例非肺癌患者的胸水进行了免疫蛋白定量分析。结果　肺癌组胸水内 4项标志物水平均明显高于非肺癌组水平 (P <0 .0 1或P <0 .0 5 ) ;肺癌组胸水中 4项标志物水平明显高于血清中水平 (P <0 .0 1或P <0 .0 5 ) ;CEA与CA199联合检测其敏感性和特异性高达 96.2 %和 96.0 %。结论　检测胸水中CEA、CA12 5、CA15 3及CA199对肺癌的诊断具有重要的临床意义 ,其中CEA与CA199联合检测为最佳组合

Diagnostic value of determination of CEA, CA125, CA153 and CA199 assay in pleural fluid for lung cancer

Objective To study the diagnostic value of detection of carcinoembryonic antigen (CEA), cancer antigen 125 (CA125), cancer antigen 153 (CA153) and cancer antigen 199 (CA199) in pleural fluid samples for lung cancer. Methods Immunoprotein quantity of CEA, CA125, CA153 and CA199 was analyzed in pleural fluid and serum from patients with lung cancer (52 cases) and in pleural fluid from non cancerous patients (50 cases) by chemiluminescence. Results The levels of CEA, CA125, CA153 and CA199 in pleural fluid of patients with lung cancer were significantly higher than those of non cancerous patients ( P <0.01 or P <0.05). In lung cancer patients, the levels of CEA, CA125, CA153 and CA199 in pleural fluid were obviously higher than those in serum ( P <0.01 or P <0.05). The sensitivity and the specificity of CEA+CA199 were 96.2% and 96.0%, respectively. Conclusion Detection of CEA, CA125, CA153 and CA199 in pleural fluid might be helpful for diagnosing lung cancer, and the optimal combination for assay is CEA+CA199.