Year 2020 / Volume 112 / Number 3
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Year 2020 / Volume 112 / Number 3


Gastric per-oral endoscopic myotomy (G-POEM) is a promising treatment for refractory gastroparesis: a systematic review and meta-analysis


Jin Yan, Yuyong Tan, Bingyi Zhou, Shilan Zhang, Xuehong Wang, Deliang Liu,

Aim: to evaluate the efficacy and safety of gastric per-oral endoscopic myotomy (G-POEM) for the treatment of refractory gastroparesis. Methods: PubMed, Embase and Cochrane databases were searched and used for study inclusion. Clinical studies since January 2013 to October 2019 were identified as suitable for inclusion. Conference papers, review articles, case reports, animal studies, letters, studies with repetitive data, studies that did not mention the Gastroparesis Cardinal Symptom Index (GCSI) score/gastric emptying scintigraphy (GES) hours or were not indicated in the standard form were excluded. GCSI score, GCSI reduction, gastric emptying scintigraphy at four hours (GES-4h) and GES time (GET) reduction were considered as major indexes and the meta-analysis was achieved using Review Manager 5.3. Research bias was measured according to Cochrane handbook. Results: nine studies were included with a total of 235 patients that underwent G-POEM, and the technical success rate was 100%. After G-POEM, patients reported changes in GCSI score (6/9 studies, mean difference 1.41 [CI: 0.93, 1.88], p < 0.0001), GCSI reduction (8/9 studies, odds ratio 3.00 [CI: 2.24, 4.03], p < 0.0001), GES-4h (8/9 studies, mean difference 23.78 [CI: 19.88, 27.68], p < 0.00001) and GET reduction (6/9 studies, odds ratio 3.50 [CI: 2.12, 5.78], p < 0.00001). The intra-procedure complication rate was 5.1% (12/235), including capnoperitoneum (seven cases) and accidental mucotomy (five cases). The post-procedure complication rate was 6.8% (16/235), including abdominal pain (three cases), bleeding (three cases), ulcer (one case), difficulty swallowing (one case) and others (eight cases). Both per- and post-procedure complications were easily managed by conservative or endoscopic treatments. Conclusion: the results show that gastroparesis patients can benefit from G-POEM, the success rate was impressive and the complication rate was relatively low. However, caution is necessary when interpreting the results, primarily due to the limitations of uncontrolled studies. Randomized control studies are still needed for further evaluations.

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The Spanish Journal of Gastroenterology is the official organ of the Sociedad Española de Patología Digestiva, the Sociedad Española de Endoscopia Digestiva and the Asociación Española de Ecografía Digestiva
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