纤支镜检查联合痰液肿瘤标志物检测对肺癌的诊断价值

目的：探讨纤维支气管镜检查联合痰液肿瘤标志物检测对肺癌的诊断价值。方法：对52例肺癌患者和46例肺部良性病变患者行纤维支气管镜检查,并采用化学发光免疫分析法检测其痰液中的肿瘤标志物。结果：52例肺癌患者痰液中癌胚抗原（CEA）、糖类抗原125（CA125）、糖尿抗原19-9（CA199）和细胞角蛋白19片段21-1（CYFRA21-1）的阳性率分别为42.3%、46.2%、36.5%和51.9%;46例肺部良性病变患者的阳性率分别为13.0%、15.2%、10.7%和17.4%。比较2组阳性率差异有统计学意义（P〈0.05）。52例肺癌患者中纤维支气管镜检查确诊30例,敏感度为57.7%,特异度和准确度分别为100.0%和77.6%。鳞癌患者痰液CYFRA21-1阳性率较CEA、CA125、CA199升高更显著（P=0.028）。Ⅲ期＋Ⅳ期肺癌患者痰液CA125的阳性率较Ⅰ~Ⅱ期高（P=0.023）。纤维支气管镜检查联合痰液肿瘤标志物检测的敏感度为94.2%,特异度和准确度分别为87.0%和90.8%。结论：纤维支气管镜检查联合痰液肿瘤标志物检测可以提高肺癌的诊断水平。

Diagnostic Value of Fibro-Optic Bronchoscope Examination Combined with Tumor Marker Assays in Sputum Analysis of Patients with Lung Cancer

Objective:To investigate the diagnosis value of undergoing fibro-optic bronchoscope(FB) examinations combination with tumor marker(TM) assays in sputum to lung cancer.Methods:By fibro-optic bronchoscope examinations and using the method of chemi-luminescent enzyme immunoassay for the assay of tumor marker in sputum,52 cases with lung cancer and 46 cases with benign lung disease were studied.Results: Among the 52 cases of lung cancer,the positive percentage of carcinoembryonic antigen(CEA),cancer antigen(CA)...