透明帽在Barrett食管诊断中的应用

目的探讨胃镜下采用透明帽对提高Barrett食管（BE）检出率的可行性。方法前瞻性收集168例胃镜检查疑诊为BE的患者，非选择性地分成两组：一组胃镜头端安装一个改良透明帽简称透明帽组，对疑似BE病变处进行活检，共60例；另一组为对照组108例，胃镜下直接对可疑病变进行活检，每例病变活检二块，检出柱状上皮即可诊断为BE。然后再比较两组的检出率。结果透明帽组BE检出率83．3％（50／60），对照组BE检出率69．4％（75／108），两组差异有统计学意义（P〈0．05）。结论胃镜下采用透明帽可使贲门部病变暴露清楚，易于定位活检，有助BE的检出，具有独特的优点和临床应用价值。

Transparent cap-fitted endoscopy in diagnosis of Barrett's esophagus

Objective To evaluate the feasibility of transparent cap-fitted endoscopy in improving diagnostic yield of Barrett's esophagus(BE).Methods A total of 168 patients with endoscopieally suspected BE were randomly divided into cap group(n=60)and control group(n=108).A transparent cap-fitted endoscopy Was applied in cap group to take biopsy,while a routine one was used in control group,and 2 biopsies from suspected lesions were collected in each patient.BE was diagnosed in the presence of columnar epithelium and the diagnostic rate was compared between 2 groups.Results The diagnostic rates of BE were 83.3%(50/60)and 69.4%(75/108)in cap and control group,respectively(P＜0.05).Conclusion The lesions at cardia Call be exposed clearly with capped endoscopy,which facilitates localized biopsy and BE diagnosis.