Outcomes of Radiofrequency Ablation versus Endoscopic Surveillance for Barrett's Esophagus with Low-Grade Dysplasia: A Systematic Review and Meta-Analysis.

ABSTRACT

BACKGROUND: Endoscopic therapy using radiofrequency ablation (RFA) is a recommended treatment for Barrett's esophagus with high-grade dysplasia (BE-HGD) without a visible lesion which is managed by resection. However, currently, there is no consensus on the management of BE with low-grade dysplasia (BE-LGD) - RFA versus endoscopic surveillance. Hence, we performed a systematic review and meta-analysis of these comparative studies to compare the risk of progression to HGD or esophageal adenocarcinoma (EAC) among patients with BE-LGD treated with RFA versus endoscopic surveillance. METHODS: The primary outcome was to compare the risk of progression to HGD or EAC among patients with BE-LGD treated with RFA versus endoscopic surveillance. RESULTS: Four comparative studies reporting a total of 543 patients with BE-LGD were included in the meta-analysis (234 in RFA and 309 in endoscopic surveillance). The progression of BE-LGD to either HGD or EAC was significantly lower in patients treated with RFA compared to endoscopic surveillance (OR 0.17, 95% confidence interval [CI] 0.04-0.65, p = 0.01). The progression to HGD alone was significantly lower in patients treated with RFA versus endoscopic surveillance (OR 0.23, 95% CI 0.08-0.61, p = 0.003). The progression to EAC alone was numerically lower in RFA than endoscopic surveillance without statistical significance (OR 0.44, 95% CI 0.17-1.16, p = 0.09). Moderate heterogeneity was noted in the analysis. CONCLUSIONS: Based on our meta-analysis, there was a significant reduction in the risk of progression to HGD or EAC among patients with BE-LGD treated with RFA compared with those undergoing endoscopic surveillance. Endoscopic eradication therapy with RFA should be the preferred management approach for BE-LGD.