Gastroenterology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.
J Gastroenterol Hepatol. 2022 Aug;37(8):1507-1516. doi: 10.1111/jgh.15902. Epub 2022 Jun 2.
BACKGROUND AND AIM: Gastro-esophageal reflux (GER) is the main predisposing factor for Barrett's esophagus (BE). A more precise estimate of the association of GER symptoms with the risk of BE would be important to prioritize endoscopic screening. We conducted a systematic review and meta-analysis to examine this issue. METHODS: MEDLINE, EMBASE, and EMBASE Classic were searched to identify cross-sectional studies that reported the prevalence of BE based on presence of GER symptoms. The prevalence of BE was compared according to presence or absence of GER symptoms using an odds ratio (OR), with a 95% confidence interval (CI). Specificity and sensitivity of GER symptoms for predicting BE was calculated. RESULTS: Of 10,463 citations evaluated, 19 studies reported the prevalence of BE in 43,017 subjects. The pooled OR among individuals with weekly GER symptoms compared with those without was 1.67 (95% CI 1.30-2.15) for endoscopically suspected BE, and 2.42 (95% CI 1.59-3.68) for histologically confirmed BE. No significant association was found between weekly GER symptoms and the presence of short segment BE (OR 1.30; 95% CI 0.86-1.97), whereas a strong association was present with long segment BE, with an OR of 6.30 (95% CI 2.26-17.61). CONCLUSIONS: Gastro-esophageal reflux symptoms are associated with an increased odds of BE, with a further increase when weekly symptoms are present. Overall, GER symptoms showed low sensitivity and specificity for predicting BE; however, a strong association was found between weekly GER symptoms and long segment BE, but not short segment BE, suggesting that it may be worth considering screening individuals with weekly GER symptoms to rule out long segment BE.
背景与目的:胃食管反流(GER)是 Barrett 食管(BE)的主要诱发因素。更准确地评估 GER 症状与 BE 风险之间的关联,对于确定内镜筛查的优先级非常重要。我们进行了一项系统评价和荟萃分析,以研究这个问题。
方法:通过检索 MEDLINE、EMBASE 和 EMBASE Classic,我们找到了基于 GER 症状存在与否,报告 BE 患病率的横断面研究。使用比值比(OR),并结合 95%置信区间(CI),比较了存在或不存在 GER 症状时 BE 的患病率。计算了 GER 症状预测 BE 的特异性和敏感性。
结果:在评估的 10463 条引文中有 19 项研究报告了 43017 名受试者的 BE 患病率。与没有 GER 症状的人相比,每周有 GER 症状的个体中内镜可疑 BE 的合并 OR 为 1.67(95%CI 1.30-2.15),而组织学证实的 BE 的合并 OR 为 2.42(95%CI 1.59-3.68)。每周有 GER 症状与短节段 BE 的存在之间没有显著相关性(OR 1.30;95%CI 0.86-1.97),但与长节段 BE 存在显著相关性,OR 为 6.30(95%CI 2.26-17.61)。
结论:GER 症状与 BE 的发生几率增加相关,当每周出现症状时,这种相关性进一步增加。总体而言,GER 症状预测 BE 的敏感性和特异性均较低;然而,每周有 GER 症状与长节段 BE 之间存在很强的相关性,而与短节段 BE 之间无相关性,这表明对于每周有 GER 症状的个体,可能值得考虑进行筛查以排除长节段 BE。
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