胆胰疾病CA19-9升高相关因素及其临床价值研究

目的研究影响胆胰疾病CA19-9水平的因素,评价CA19-9升高在鉴别诊断消化道良恶性疾病中的临床价值。方法回顾性分析2003—2009年北京大学人民医院201例胆胰疾病(73例胰腺癌、45例胆管癌、83例胆总管结石),分析胆总管结石患者的CA19-9水平和胆汁淤积以及胆管炎症相关指标的相关性。分析胰腺癌、胆管癌患者CA19-9水平和肿瘤分期及分化程度的相关性。绘制胰腺癌、胆管癌CA19-9的ROC曲线。结果CA19-9升高组胆总管结石患者胆汁淤积以及胆管炎症相关指标均较CA19-9正常组高(P值均0.05),患者的CA19-9水平与上述指标呈正相关(P值均0.05)。胰腺癌患者的CA19-9水平与年龄和肿瘤分期呈正相关(P值均0.05)。CA19-9诊断胰腺癌的灵敏度(临界值为37kU/L)86.30%,特异度42.16%,据ROC曲线当临界值为42kU/L时灵敏度为86.30%,特异度为53.06%。CA19-9临界值为37kU/L诊断胆管癌的灵敏度95.56%,特异度42.16%,根据ROC曲线当临界值为63.14kU/L时,灵敏度95.56%,特异度60.24%。结论胆总管结石患者的CA19-9非特异性升高水平与胆汁淤积以及胆管炎症相关指标呈正相关。胰腺癌患者的CA19-9水平和肿瘤分期呈正相关。以CA19-9临界值为37kU/L诊断胰腺癌和胆管癌灵敏度较高,但是鉴别良恶性疾病的特异性不理想,提高临界值可以提高特异度。

A study on the factors associated with elevated CA19-9 in pancreaticobiliary diseases

Objective To investigate the factors associated with elevated CA19-9 in pancreaticobiliary disease and to evaluate the clinical value of the elevated CA19-9 levels in differential diagnosis between benign and malignant alimentary tract diseases.Methods 201 cases (including 73 pancreatic cancer,45 cholangiocarcinoma and 83 choledocholithiasis) were enrolled in this retrospective study.The relationship between the CA19-9 level and the factors related to cholangitis or cholestasis was analyzed in patients with...