幽门螺杆菌唾液测试板与14C-尿素呼气试验检测幽门螺杆菌感染的比较

目的:比较幽门螺杆菌唾液测试板(HPS)与14C-尿素呼气试验(14C-UBT)检测幽门螺杆菌(Hp)感染的临床价值。方法:用HPS检测唾液中的尿素酶,同时行14C-UBT及胃镜检查行快速尿素酶试验(rapidurease test,RUT)、胃黏膜组织学检查(改良Giemsa染色)及细菌培养联合检测来判断胃黏膜Hp感染情况,并比较HPS与14C-UBT诊断Hp感染的阳性率、敏感性、特异性、准确性、阳性预测值及阴性预测值。结果:160例患者行Hp联合检测检出阳性患者102例,阳性率为63.75%,其中HPS检出76例,阳性率47.50%,14C-UBT检出94例,阳性率58.75%。HPS、14C-UBT诊断Hp感染的敏感性分别为72.55%、80.39%;特异性分别为96.55%、79.31%;准确性分别为81.25%、80.00%;阳性预测值分别为97.37%、87.23%;阴性预测值分别为66.67%、69.70%。对以上结果进行χ2检验,差异均无统计学意义。结论:HPS检测Hp感染的阳性率及准确性、敏感性、特异性与14C-UBT相近,且此法快速、简便,价格低廉,不需要任何其他仪器,是值得临床进一步验证的一种新的非侵入性Hp感染诊断方法。

Comparison of the Hp saliva test plate and 14C urease breath test for detecting Hp infection

Objective To investigate the clinical value of the Hp saliva test plate(HPS) and 14C urease breath test(14C-UBT) for Hp infection. Methods Urease was detected in saliva of patients by means of HPS,and Hp infection were detected in the biopsy specimen of gastric mucosa with 14C-UBT and the combined detection of RUT,modified Giemsa staining and bacterial culture at the same time. Then comparisons were made between HPS and 14C-UBT groups by the positive rate,sensitivity,specificity,and the positive(or negative...