唾液测试板检测口腔幽门螺杆菌的实用性研究

时间:2022-06-14 04:38:22

唾液测试板检测口腔幽门螺杆菌的实用性研究

[摘要] 目的 探讨幽门螺杆菌唾液测试板(HPS)与碳-13尿素呼气试验(13C-UBT)检测口腔幽门螺杆菌的相关性及其诊断的特异性及灵敏性。方法 选择13C-UBT检测阳性者106例和13C-UBT检测阴性者24例,共130例研究对象,采用HPS法进行口腔幽门螺杆菌检测。以13C-UBT为金标准,对HPS法检测结果用贝叶斯定理方法进行评价。结果 HPS的灵敏度为68.87%,特异度为58.33%,准确度为66.92%,阳性预测值为87.95%,阴性预测值为29.79%。二者的符合率为66.92%。结论 HPS法与13C-UBT法的检测结果具有一定的相关性,13C-UBT法对口腔幽门螺杆菌检测存在盲区,不适用于作为评价口腔幽门螺杆菌检测方法HPS的金标准。HPS法与13C-UBT法可临床上同步使用。

[关键词] 幽门螺杆菌; 特异度; 灵敏度; 碳-13尿素呼气试验; 幽门螺杆菌唾液测试板

[中图分类号] R 780.2 [文献标志码] A [doi] 10.3969/j.issn.1000-1182.2012.05.012

Study of the pragmatic of saliva test cassette to detect the Helicobacter pylori in oral cavity Wang Xiaomin, Zhao Yan, Chen Nan, Wang Junhong, Xing Yantong, Zhang Gengyue. (Dept. of Stomatology, Peking University First Hospital, Beijing 100034, China)

[Abstract] Objective To study the link of Helicobacter pylori salive test cassette(HPS) and 13C-urea breath test(13C-UBT) on detecting Helicobacter pylori infection of stomach, and the sensitivity as well as specificity should be determined. Methods A screening trial of 13C-UBT and HPS tests was carried out 130 patients included 106 positive and 24 negative results of 13C-UBT. As gold standards of 13C-UBT, a comparison study with HPS was evaluated using Bayes formula. Results The sensitivity, specificity, accuracy, positive and negative predictive value of HPS was 68.87%, 58.33%, 66.92%, 87.95%, 29.79% respectively. The coincidence was 66.92%. Conclusion There is a correlation between results of 13C-UBT and HPS. Combination of 13C-UBT and HPS may compensate the blind zone of 13C-UBT in detecting oral Helicobacter pylori infection. 13C-UBT could not be used as a gold standard to judge the validation of HPS in detecting Helicobacter pylori oral infection. The methods can be used at the same time in clinic.

[Key words] Helicobacter pylori; specificity; sensitivity; 13C-urea breath test; Helicobacter pylori salive test cassette

幽门螺杆菌(Helicobacter pylori,H. pylori)是

一种感染率极高(50%以上)的人类致病菌,与慢性胃炎、消化性溃疡和胃部恶性肿瘤的发生密切相关,在1994年被世界卫生组织定为一类致癌物,也是引起牙周健康人群口臭的主要原因之一[1-3]。胃内幽门螺杆菌的三联根治失败率逐年提高,口腔内幽门螺杆菌的储存是胃幽门螺杆菌感染复发的重要原因。胃黏膜的生态环境适宜于幽门螺杆菌的生长繁殖,牙菌斑及牙周病患者牙周袋的微生态环境也是幽门螺杆菌生长与繁殖的摇篮[4-6]。

现有的口腔内幽门螺杆菌检测方法,如聚合酶链反应(polymerase chain reaction,PCR)、细菌培养、快速尿素酶试验(rapid urease test,RUT)等,因其

各具有一定的局限性而不适宜临床上应用于口腔幽门螺杆菌的检测[7]。而及时检测口腔内是否存在幽

门螺杆菌感染,对于防治因口腔幽门螺杆菌感染导致的胃病、幽门螺杆菌根治失败的再治疗及控制口臭等都具有重要的临床意义。幽门螺杆菌唾液测试板(Helicobacter pylori salive test cassette,HPS)是应用胶体金层析式双抗体夹心法原理,定性检测人体口腔唾液中幽门螺杆菌尿素酶的一种方法,具有简便易行、无创、快速、经济等特点,但在临床广泛应用之前对其诊断的特异性及敏感性还有待进一步确认。本研究以碳-13尿素呼气试验(13C-urea breath

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