Feasibility and safety of peroral endoscopic myotomy with fundoplication in patients with achalasia: a systematic review and meta-analysis

Background Achalasia can cause disabling symptoms that may substantially impair the quality of life. Peroral endoscopic myotomy (POEM) has shown promising results in the management of achalasia. In this meta -analysis we have evaluated the feasibility and safety of single -session POEM with fundoplication (POEM+F) in patients with achalasia. Methods We reviewed several databases from inception to July 08, 2022, to identify studies evaluating the feasibility and/or safety of single -session POEM+F for patients with achalasia. Our outcomes of interest included the technical success of POEM+F, adverse events, esophagitis and wrap integrity on follow-up upper endoscopy, total procedure time, and fundoplication time. Pooled rates with 95% confidence intervals (CI) for outcomes were calculated using a random effect model. Heterogeneity was assessed using the I 2 statistic. Results We included 4 studies with 90 patients. Pooled rates (95%CI) of technical success and adverse events were 92% (83-96%) and 5% (2-11%), respectively. Pooled rates (95%CI) of esophagitis and wrap integrity on follow-up upper endoscopy were 18% (11-30%) and 85% (43- 98%) respectively. Pooled mean procedure time and fundoplication time were 113.2 (98.7127.6) and 55.3 (43.7-66.8) min, respectively. Conclusions This meta -analysis demonstrates the feasibility and safety of POEM+F in patients with achalasia. More studies with long-term follow up are required to further validate these findings.