摘要:
目的 探讨血清肿瘤标志物在消化系统恶性肿瘤中的应用价值.方法 采用电化学发光仪检测224例消化系统恶性肿瘤患者和103例健康对照者血清中六种肿瘤标志物:甲胎蛋白(AFP),糖类抗原125 (CA-125),糖类抗原1 99(CA-199),癌胚抗原(CEA),细胞角蛋白21-1(CYFRA21-1)和转铁蛋白(Ferritin),对比两组检测结果的差异及其灵敏度和特异度.结果 ①肿瘤组六种肿瘤标志物AFP,CA125,CA199,CEA,CYFRA21-1和Ferritin水平均高于对照组(Z=-2.174,-1.917,-3.012,-2.122,-1.954,-2.997;P=0.037,0.000,0.000,0.000,0.000,0.000).②消化肿瘤组中AFP,CA125,CA199,CEA,CYFRA21-1和Ferritin六种标志物阳性率较对照组差异均有统计学显著性意义(x2=31.23,23.63,36.89,29.12,30.11,27.18;P=0.002,0.000,0.000,0.000,0.000,0.000),CA-199阳性率最高(50.45%).③六种血清肿瘤标记物在消化系统肿瘤中的灵敏度、特异度和准确度不同,消化系统肿瘤以CEA+ CA-199+ AFP和CEA+ CA-125+CA-199联合较与其他标志物联合敏感度(70.98%,70.98%),特异度(92.23%,85.44%)更高.结论 血清肿瘤标志物对消化系统恶性肿瘤的诊断具有积极的作用,其可提高恶性肿瘤的早期检出率.