Peroral endoscopic pyloromyotomy for gastroparesis: a systematic review and meta-analysis

Abstract

Background and aim Gastric peroral endoscopic pyloromyotomy (G-POEM) is a new therapeutic option for refractory gastroparesis (GP). A systematic review and meta-analysis was conducted to assess the effectiveness of G-POEM in refractory GP. For the quality of evidence, we used the Grading of Recommendations Assessment, Development and Evaluation (GRADE) criteria.

Methods We performed a literature search using MEDLINE, Embase, Cochrane library, LILACS and the Science citation index for studies related to G-POEM from the inception of its technique through January 2019. We selected studies that analyzed the gastroparesis cardinal symptom index (GCSI) and 4-hour solid-phase gastric emptying scintigraphy (GES) before and after the procedure to verify the efficacy of G-POEM, the main outcome measured. An analysis was performed using RevMan 5.3.

Results Ten studies comprising 281 patients were included in this systematic review. The pooled mean difference in GCSI following the procedure was 1.76 (95 % CI: [1.43, 2.08], I² = 72 %). We also performed GCSI subgroup analysis by follow-up duration that showed a pooled mean difference of 1.84 (95 % CI: [1.57, 2.12], I² = 71 %). The pooled mean difference in GES after the procedure was 26.28 (95 % CI: [19.74, 32.83], I² = 87 %), corresponding to a significant drop in percentage values of the gastric retention 4-hour scintigraphy.

Conclusion This meta-analysis demonstrates that G-POEM is effective and shows promising outcomes in the clinical response and gastric emptying scintigraphy for gastroparesis. Therefore, it should be considered in the management of refractory gastroparesis.

Publication History

Received: 23 October 2019

Accepted: 06 January 2020

Article published online:
16 June 2020

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