Endoscopy, Table of Contents Endoscopy 2025; 57(S 02): S104DOI: 10.1055/s-0045-1805299 Abstracts | ESGE Days 2025 Oral presentation Hot Topics in POEM 04/04/2025, 11:30 – 12:30 Room 122+123 Post-Myotomy Septum (PoMS) Following POEM: Incidence, Clinical Outcomes, and Management in a High-Volume Center Authors Author Affiliations R Maselli 1 Humanitas research hospital, milano, Italy F Minini 2 Humanitas Research Hospital, Cascina Perseghetto, Italy D De Deo 2 Humanitas Research Hospital, Cascina Perseghetto, Italy S Maritalia 3 Reunited Hospitals Torrette of Ancona, Torrette, Italy L Brandaleone 2 Humanitas Research Hospital, Cascina Perseghetto, Italy A Capogreco 2 Humanitas Research Hospital, Cascina Perseghetto, Italy D Massimi 1 Humanitas research hospital, milano, Italy R de Sire 4 Humanitas Research Hospital, Rozzano, Italy L Alfarone 2 Humanitas Research Hospital, Cascina Perseghetto, Italy E Carlani 5 Humanitas Research Hospital, Milan, Italy G Pellegatta 6 Humanitas Research Hospital,Department of Gastroenterology and Hepatology, Rozzano, Italy C Hassan 7 Humanitas University, Rozzano, Italy A Repici 8 Endoscopy Unit, Humanitas Clinical and Research Hospital, IRCCS, Rozzano, Italy Recommend Article Abstract Full Text References References 1 Triggs JR, Krause AJ, Carlson DA, Donnan EN, Campagna RAJ, Jain AS, Kahrilas PJ, Hungness ES, Pandolfino JE.. Blown-out myotomy: an adverse event of laparoscopic Heller myotomy and peroral endoscopic myotomy for achalasia. Gastrointest Endosc 2021; 93 (04): 861-868.e1 Epub 2020 Jul 25. PMID: 32721488; PMCID: PMC7855725. 2 Kuipers T, Ponds FA, Fockens P, Bastiaansen BAJ, Pandolfino JE, Bredenoord AJ.. Focal Distal Esophageal Dilation (Blown-Out Myotomy) After Achalasia Treatment: Prevalence and Associated Symptoms. Am J Gastroenterol 2024; 119 (10): 1983-1989 Epub 2024 Apr 15. PMID: 38619115; PMCID: PMC11446521. 3 Albers D, Witt M, Pandolfino JE, Rösch T, Schachschal G, Beyna T, Neuhaus H, Gerges C, Kandler J, Allescher HD, Martinek J, Repici A, Ebigbo A, Messmann H, Schumacher B, Werner YB.. Peroral endoscopic myotomy for hypercontractile (Jackhammer) esophagus: A retrospective multicenter series with long-term follow-up. United European Gastroenterol J 2024; 12 (07): 930-940 Epub 2024 Jun 14. PMID: 38873948; PMCID: PMC11497736