CA19-9、CA242及CEA联合检测在良恶性梗阻性黄疸鉴别诊断中的应用

目的: 评价血清肿瘤标志物糖链抗原19-9(CA19-9)、糖链抗原242(CA242)及癌胚抗原(CEA)联合检测鉴别诊断良恶性梗阻性黄疸的临床价值。方法: 采用免疫放射分析法对88例恶性梗阻性黄疸患者和52例良性梗阻性黄疸患者的血清CA19-9、CA242和CEA进行检测,绘制ROC曲线并计算曲线下面积(AUC),对CA19-9、CA242和CEA单独及联合检测的灵敏度、特异度、阳性预测值、阴性预测值、阳性似然比、阴性似然比进行分析。结果: CA19-9、CA242和CEA在恶性梗阻性黄疸组的水平均显著高于良性梗阻性黄疸组(P < 0.01),CA19-9、CA242和CEA、AUC分别为0.882、0.904和0.843,阳性似然比依次为1.96、6.04和10.44,阴性似然比依次为0.11、0.30和0.42。系列联合检测(三项检查)阳性,其特异性较单项检查明显增高;而平行联合检测(三项检查中有一项为阳性)阳性,则灵敏度较单项检查明显增高。结论: CA19-9、CA242及CEA联合检测对鉴别良恶性梗阻性黄疸有一定的临床意义。

Combination detection of carbohydrate antigen 19-9,carbohydrate antigen 242 and carcinoembryonic antigen in differential diagnosis of benign and malignant obstructive jaundice

Objective:To evaluate the clinical significance of serum tumor markers carbohydrate antigen 19-9(CA19-9),carbohydrate antigen 242(CA242)and carcinoembryonic antigen(CEA)in differential diagnosis of benign and malignant obstructive jaundice.Methods:Serum levels of CA199,CA242 and CEA were detected by radioimmunoassay in 88 patients with malignant obstructive jaundice and 52 patients with benign obstructive jaundice.The receiver-operating characteristics curve(ROC) of the three serum tumor markers was made an...