{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T01:06:20Z","timestamp":1788397580458,"version":"build-2803163510"},"reference-count":26,"publisher":"Springer Science and Business Media LLC","issue":"2","license":[{"start":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T00:00:00Z","timestamp":1762473600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T00:00:00Z","timestamp":1762473600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82370546"],"award-info":[{"award-number":["82370546"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82170555"],"award-info":[{"award-number":["82170555"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82270569"],"award-info":[{"award-number":["82270569"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82000507"],"award-info":[{"award-number":["82000507"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Shanghai Academic\/Technology Research Leader","award":["22XD1422400"],"award-info":[{"award-number":["22XD1422400"]}]},{"name":"Shuguang Program of Shanghai Education Development Foundation and Shanghai Municipal Education Commission","award":["22SG06"],"award-info":[{"award-number":["22SG06"]}]},{"name":"Shanghai \u201cRising Stars of Medical Talent\u201d Youth Development Program","award":["20224Z0005"],"award-info":[{"award-number":["20224Z0005"]}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Surg Endosc"],"published-print":{"date-parts":[[2026,2]]},"DOI":"10.1007\/s00464-025-12370-4","type":"journal-article","created":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T15:36:27Z","timestamp":1762529787000},"page":"1128-1135","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Long-term outcome of peroral endoscopic myotomy for sigmoid-type achalasia: S1 vs S2 subtypes"],"prefix":"10.1007","volume":"40","author":[{"given":"Peirong","family":"Xu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zuqiang","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanfang","family":"Tan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yicheng","family":"Tian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Hu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Quanlin","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5434-0540","authenticated-orcid":false,"given":"Pinghong","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,11,7]]},"reference":[{"key":"12370_CR1","doi-asserted-by":"publisher","first-page":"e14058","DOI":"10.1111\/nmo.14058","volume":"33","author":"R Yadlapati","year":"2021","unstructured":"Yadlapati R, Kahrilas PJ, Fox MR et al (2021) Esophageal motility disorders on high-resolution manometry: Chicago classification version 4.0((c)). Neurogastroent Motil 33:e14058","journal-title":"Neurogastroent Motil"},{"key":"12370_CR2","doi-asserted-by":"publisher","first-page":"e256","DOI":"10.1111\/j.1365-2982.2010.01511.x","volume":"22","author":"DC Sadowski","year":"2010","unstructured":"Sadowski DC, Ackah F, Jiang B, Svenson LW (2010) Achalasia: incidence, prevalence and survival. a population-based study. Neurogastroenterol Motil 22:e256\u2013e261","journal-title":"Neurogastroenterol Motil"},{"key":"12370_CR3","doi-asserted-by":"publisher","first-page":"1011","DOI":"10.1136\/gut.33.8.1011","volume":"33","author":"PJ Howard","year":"1992","unstructured":"Howard PJ, Maher L, Pryde A, Cameron EW, Heading RC (1992) Five year prospective study of the incidence, clinical features, and diagnosis of achalasia in Edinburgh. Gut 33:1011\u20131015","journal-title":"Gut"},{"key":"12370_CR4","first-page":"30","volume":"6","author":"P Mundre","year":"2021","unstructured":"Mundre P, Black CJ, Mohammed N, Ford AC (2021) Efficacy of surgical or endoscopic treatment of idiopathic achalasia: a systematic review and network meta-analysis. Lancet Gastroenterol 6:30\u201338","journal-title":"Lancet Gastroenterol"},{"key":"12370_CR5","doi-asserted-by":"publisher","first-page":"158","DOI":"10.1016\/S1072-7515(99)00091-5","volume":"189","author":"Y Shiino","year":"1999","unstructured":"Shiino Y, Houghton SG, Filipi CJ, Awad ZT, Tomonaga T, Marsh RE (1999) Manometric and radiographic verification of esophageal body decompensation for patients with achalasia. J Am Coll Surg 189:158\u2013163","journal-title":"J Am Coll Surg"},{"key":"12370_CR6","doi-asserted-by":"publisher","first-page":"2841","DOI":"10.1007\/s00464-014-4013-9","volume":"29","author":"JW Hu","year":"2015","unstructured":"Hu JW, Li QL, Zhou PH et al (2015) Peroral endoscopic myotomy for advanced achalasia with sigmoid-shaped esophagus: long-term outcomes from a prospective, single-center study. Surg Endosc 29:2841\u20132850","journal-title":"Surg Endosc"},{"key":"12370_CR7","doi-asserted-by":"publisher","first-page":"530","DOI":"10.1007\/s11605-020-04794-1","volume":"25","author":"Z Nabi","year":"2021","unstructured":"Nabi Z, Ramchandani M, Basha J, Goud R, Darisetty S, Reddy DN (2021) Outcomes of per-oral endoscopic myotomy in sigmoid and advanced sigmoid achalasia. J Gastrointest Surg 25:530\u2013532","journal-title":"J Gastrointest Surg"},{"key":"12370_CR8","doi-asserted-by":"publisher","first-page":"30","DOI":"10.1097\/MEG.0000000000000491","volume":"28","author":"L Lv","year":"2016","unstructured":"Lv L, Liu J, Tan Y, Liu D (2016) Peroral endoscopic full-thickness myotomy for the treatment of sigmoid-type achalasia: outcomes with a minimum follow-up of 12 months. Eur J Gastroen Hepat 28:30\u201336","journal-title":"Eur J Gastroen Hepat"},{"key":"12370_CR9","doi-asserted-by":"publisher","first-page":"505","DOI":"10.1097\/MCG.0000000000001388","volume":"55","author":"MR Sanaka","year":"2021","unstructured":"Sanaka MR, Garg R, Chadalavada P et al (2021) Peroral endoscopic myotomy is safe and highly effective treatment for advanced achalasia with sigmoid esophagus. J Clin Gastroenterol 55:505\u2013511","journal-title":"J Clin Gastroenterol"},{"key":"12370_CR10","doi-asserted-by":"publisher","first-page":"67","DOI":"10.5056\/jnm19144","volume":"26","author":"HJ Yoon","year":"2020","unstructured":"Yoon HJ, Lee JE, Jung DH, Park JC, Youn YH, Park H (2020) Morphologic restoration after peroral endoscopic myotomy in sigmoid-type achalasia. J Neurogastroenterol 26:67\u201373","journal-title":"J Neurogastroenterol"},{"key":"12370_CR11","doi-asserted-by":"publisher","first-page":"4124","DOI":"10.1007\/s00464-019-07180-4","volume":"34","author":"S Maruyama","year":"2020","unstructured":"Maruyama S, Taniyama Y, Sakurai T et al (2020) Per-oral endoscopic myotomy (POEM) for a sigmoid type of achalasia: short-term outcomes and changes in the esophageal angle. Surg Endosc 34:4124\u20134130","journal-title":"Surg Endosc"},{"key":"12370_CR12","doi-asserted-by":"crossref","unstructured":"Japan Esophageal Society (2017) Descriptive rules for achalasia of the esophagus, June 2012: 4th edition. Esophagus-Tokyo 14:275\u2013289","DOI":"10.1007\/s10388-017-0589-1"},{"key":"12370_CR13","doi-asserted-by":"publisher","first-page":"329","DOI":"10.2147\/TCRM.S32666","volume":"8","author":"N Eleftheriadis","year":"2012","unstructured":"Eleftheriadis N, Inoue H, Ikeda H et al (2012) Training in peroral endoscopic myotomy (POEM) for esophageal achalasia. Ther Clin Risk Manag 8:329\u2013342","journal-title":"Ther Clin Risk Manag"},{"key":"12370_CR14","doi-asserted-by":"publisher","first-page":"265","DOI":"10.1055\/s-0029-1244080","volume":"42","author":"H Inoue","year":"2010","unstructured":"Inoue H, Minami H, Kobayashi Y et al (2010) Peroral endoscopic myotomy (POEM) for esophageal achalasia. Endoscopy 42:265\u2013271","journal-title":"Endoscopy"},{"key":"12370_CR15","doi-asserted-by":"publisher","first-page":"769","DOI":"10.1016\/j.gie.2018.09.003","volume":"89","author":"Y Wang","year":"2019","unstructured":"Wang Y, Liu ZQ, Xu MD et al (2019) Clinical and endoscopic predictors for intraprocedural mucosal injury during per-oral endoscopic myotomy. Gastrointest Endosc 89:769\u2013778","journal-title":"Gastrointest Endosc"},{"key":"12370_CR16","doi-asserted-by":"publisher","first-page":"967","DOI":"10.1055\/s-0042-110397","volume":"48","author":"XC Zhang","year":"2016","unstructured":"Zhang XC, Li QL, Xu MD et al (2016) Major perioperative adverse events of peroral endoscopic myotomy: a systematic 5-year analysis. Endoscopy 48:967\u2013978","journal-title":"Endoscopy"},{"key":"12370_CR17","doi-asserted-by":"crossref","unstructured":"WEO Newsletter (2023) Digest Endosc 35:152\u2013159","DOI":"10.1111\/den.14491"},{"key":"12370_CR18","doi-asserted-by":"publisher","first-page":"3267","DOI":"10.1007\/s00464-012-2336-y","volume":"26","author":"Z Ren","year":"2012","unstructured":"Ren Z, Zhong Y, Zhou P et al (2012) Perioperative management and treatment for complications during and after peroral endoscopic myotomy (POEM) for esophageal achalasia (EA) (data from 119 cases). Surg Endosc 26:3267\u20133272","journal-title":"Surg Endosc"},{"key":"12370_CR19","doi-asserted-by":"publisher","first-page":"204","DOI":"10.1016\/j.ijsu.2010.11.010","volume":"9","author":"JM Howard","year":"2011","unstructured":"Howard JM, Ryan L, Lim KT, Reynolds JV (2011) Oesophagectomy in the management of end-stage achalasia - case reports and a review of the literature. Int J Surg 9:204\u2013208","journal-title":"Int J Surg"},{"key":"12370_CR20","doi-asserted-by":"publisher","first-page":"854","DOI":"10.1016\/S0003-4975(01)02890-9","volume":"72","author":"EJ Devaney","year":"2001","unstructured":"Devaney EJ, Lannettoni MD, Orringer MB, Marshall B (2001) Esophagectomy for achalasia: patient selection and clinical experience. Ann Thorac Surg 72:854\u2013858","journal-title":"Ann Thorac Surg"},{"key":"12370_CR21","doi-asserted-by":"publisher","first-page":"319","DOI":"10.1111\/j.1442-2050.2010.01157.x","volume":"25","author":"A Duranceau","year":"2012","unstructured":"Duranceau A, Liberman M, Martin J, Ferraro P (2012) End-stage achalasia. Dis Esophagus 25:319\u2013330","journal-title":"Dis Esophagus"},{"key":"12370_CR22","first-page":"470","volume":"38","author":"HW Pinotti","year":"1991","unstructured":"Pinotti HW, Cecconello I, Da RJ, Zilberstein B (1991) Resection for achalasia of the esophagus. Hepatogastroenterology 38:470\u2013473","journal-title":"Hepatogastroenterology"},{"key":"12370_CR23","doi-asserted-by":"publisher","first-page":"1742","DOI":"10.1007\/s00464-022-09696-8","volume":"37","author":"R Salvador","year":"2023","unstructured":"Salvador R, Nezi G, Forattini F et al (2023) Laparoscopic Heller-Dor is an effective long-term treatment for end-stage achalasia. Surg Endosc 37:1742\u20131748","journal-title":"Surg Endosc"},{"key":"12370_CR24","doi-asserted-by":"publisher","first-page":"402","DOI":"10.1016\/j.jtcvs.2004.02.018","volume":"128","author":"TC Mineo","year":"2004","unstructured":"Mineo TC, Pompeo E (2004) Long-term outcome of Heller myotomy in achalasic sigmoid esophagus. J Thorac Cardiovasc Surg 128:402\u2013407","journal-title":"J Thorac Cardiovasc Surg"},{"key":"12370_CR25","first-page":"49","volume":"16","author":"K Panchanatheeswaran","year":"2013","unstructured":"Panchanatheeswaran K, Parshad R, Rohila J, Saraya A, Makharia GK, Sharma R (2013) Laparoscopic Heller\u2019s cardiomyotomy: a viable treatment option for sigmoid oesophagus. Interact Cardiov Th 16:49\u201354","journal-title":"Interact Cardiov Th"},{"key":"12370_CR26","doi-asserted-by":"publisher","first-page":"377","DOI":"10.1016\/j.gie.2024.08.025","volume":"101","author":"E Swei","year":"2025","unstructured":"Swei E, Kassir Z, Shrigiriwar AP et al (2025) Short esophageal myotomy versus standard myotomy for treatment of sigmoid-type achalasia: results of an international multicenter study. Gastrointest Endosc 101:377\u2013384","journal-title":"Gastrointest Endosc"}],"container-title":["Surgical Endoscopy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00464-025-12370-4.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00464-025-12370-4","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00464-025-12370-4.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T19:05:30Z","timestamp":1770404730000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00464-025-12370-4"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,11,7]]},"references-count":26,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2026,2]]}},"alternative-id":["12370"],"URL":"https:\/\/doi.org\/10.1007\/s00464-025-12370-4","relation":{},"ISSN":["0930-2794","1432-2218"],"issn-type":[{"value":"0930-2794","type":"print"},{"value":"1432-2218","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,11,7]]},"assertion":[{"value":"23 July 2025","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"30 October 2025","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"7 November 2025","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Peirong Xu, Zuqiang Liu, Yanfang Tan, Yicheng Tian, Hao Hu, Quanlin Li, and Pinghong Zhou have no conflicts of interest or financial ties to disclose. All authors have no conflict of interest for this article.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Disclosures"}},{"value":"All procedures followed in this study were in accordance with the Declaration of Helsinki and Good Clinical Practice guidelines, and were approved by the Ethics Committee of Zhongshan Hospital affiliated to Fudan University.\u00a0Written informed consent was obtained from all patients.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}}]}}