老年胃癌患者胃液中肿瘤标志物联合检测的临床意义

目的探讨老年患者胃液中TNFα、CA199和CA724联合检测对胃癌的诊断意义。方法采用放射免疫技术测定42例胃癌、30例浅表性胃炎和31例胃癌前病变的老年患者胃液中TNFα、CA199和CA724浓度。结果胃癌组胃液中TNFα、CA199和CA724的浓度分别显著高于浅表性胃炎组、胃癌前病变组(8.96±2.10)ng/mlvs(5.66±1.65)ng/ml,(4.92±1.24)ng/ml;(59.47±10.58)U/mlvs(38.73±9.23)U/ml,(36.89±11.23)U/ml;(37.08±7.06)U/mlvs(25.42±7.26)U/ml,(23.87±6.31)U/ml;P均<0.001);胃癌组联合检测胃液中TNFα、CA199和CA724,其敏感度、特异度分别为86.9%,83.3%,均分别高于3项标志物的敏感度和特异度(TNFα69.1%,75.4%;CA19965.7%,67.2%;CA72466.7%,70.5%)。结论联合检测胃液中TNFα、CA199和CA724等肿瘤标志物能有助于提高老年患者胃癌的诊断准确率。