【摘要】 目的：采用国产胶囊０．７５μｃｌ剂量１４Ｃ－尿素呼气试验（１４Ｃ－ＵＢＴ）检测内镜存否幽门螺杆菌（Ｈｐ）交叉感染。方法：胃镜活检组织进行快速尿素酶试验（ＲＵＴ），在阴性者中随机抽选７０例。在镜检后观察４组时间（同步８例、１～５０天３２例、５１～１００天１３例、１０１～１５０天１７例），未经中西药抗Ｈｐ治疗，进行１４Ｃ－ＵＢＴ检测。结果：４组时间共７０例全是校正值系小于１００ＤＰＭ／ｍｍｏｌＣＯ２为阴性者与ＲＵＴ阴性者７０例相同。结论：１４Ｃ－ＵＢＴ对诊断Ｈｐ具有敏感度较高，特异性强、简便、快速安全、便于检测根治手段和监测内镜有否Ｈｐ交叉感染更多还原

【Abstract】 Abstract Objectire To determine whether cross infection of H.pylori between patients undergoing endoscopy occured using 14C-urea breath test(14C-UBT).Methods Seventy patients with a negative rapid urease test(RUT)for H.pylori in gastric biopsy specimens were randomly enrolled into the study.After endoscopy,at the same day,1～50 days,51～100days.and 101～105 days respectively after endoscopy ended,there were 8 patients,32 patients,13 patients and 17 patients respectively performing 14C-UBT,and the adjusted value less than 100 DPM/mmolCO2 was defined as negative for H.pylori.All patients haven’t been administered with anti-H.pylori therapy.Resultis All 70 patients were negative four 14C-UBT in four different period after endoscopy compared with all 70 patients with a negative RUT test.Conclusion 14C-UBT is a simple,rapid,safe,higher sensitive,and higher specific test in evaluating the effect of eradication of H.pylori and in detecting cross infection of H.pylori between patients undergoing endoscopy.更多还原