PMID- 33905769 OWN - NLM STAT- MEDLINE DCOM- 20210909 LR - 20230205 IS - 1542-7714 (Electronic) IS - 1542-3565 (Linking) VI - 19 IP - 9 DP - 2021 Sep TI - Landscape of Adverse Events Related to Peroral Endoscopic Myotomy in 3135 Patients and a Risk-Scoring System to Predict Major Adverse Events. PG - 1959-1966.e3 LID - S1542-3565(21)00467-5 [pii] LID - 10.1016/j.cgh.2021.04.033 [doi] AB - BACKGROUND AND AIMS: This article systemically describes the landscape of peroral endoscopic myotomy (POEM)-related adverse events (AEs) and compares the different grading systems; and establishes and validates a combined risk factor model and a simplified risk-scoring system to predict POEM-related major AEs. METHODS: A total of 3135 patients with achalasia treated with POEM were included and the AEs were systemically described and graded. A predictive model and risk-scoring system was developed using logistic regression and then internally validated using bootstrapping approaches. RESULTS: A total of 258 out of 3135 patients, accounting for 8.23% of the total patients, presented with 297 AEs. According to Clavien-Dindo grading, 175 (67.83%), 23 (8.91%), 56 (21.71%), 4 (1.55%), and 0 (0.00%) patients were graded as grade I-V, respectively. By American Society of Gastrointestinal Endoscopy lexicon, 175 (67.83%) patients were classified with mild AE, 66 (25.58%) were classified with moderate AE, and 17 (6.59%) were classified with severe AE, respectively. Sixty-eight (2.17%) patients were classified with major AE. Air insufflation, selective myotomy, mucosal injury, and long operation time were selected into the predictive model with an area under the curve of 0.795. They were assigned with scores of 18, 5, 3, and 5 in the risk-scoring system, respectively. By applying the risk scoring system, patients with higher scores had higher rates of major AEs. The model showed little evidence for overfitting and was well-calibrated. CONCLUSIONS: Based on a systematic landscape analysis, POEM is a safe procedure with low rates of severe AEs. Our prediction model and risk-scoring system demonstrated good performance in predicting major AEs. CI - Copyright (c) 2021 AGA Institute. Published by Elsevier Inc. All rights reserved. FAU - Liu, Xinyang AU - Liu X AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Yao, Lu AU - Yao L AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Cheng, Jing AU - Cheng J AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Xu, Meidong AU - Xu M AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Chen, Shiyao AU - Chen S AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Zhong, Yunshi AU - Zhong Y AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - He, Mengjiang AU - He M AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Chen, Weifeng AU - Chen W AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Zhang, Yiqun AU - Zhang Y AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Qin, Wenzheng AU - Qin W AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Hu, Jianwei AU - Hu J AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Cai, Mingyan AU - Cai M AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Yao, Liqing AU - Yao L AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. FAU - Zhou, Pinghong AU - Zhou P AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. Electronic address: zhou.pinghong@zs-hospital.sh.cn. FAU - Li, Quanlin AU - Li Q AD - Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan University, Shanghai, China. Electronic address: li.quanlin@zs-hospital.sh.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210424 PL - United States TA - Clin Gastroenterol Hepatol JT - Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association JID - 101160775 SB - IM CIN - Clin Gastroenterol Hepatol. 2023 Jan;21(1):234-235. PMID: 35085826 MH - Endoscopy, Gastrointestinal MH - *Esophageal Achalasia/diagnosis/surgery MH - Esophageal Sphincter, Lower MH - Humans MH - *Myotomy/adverse effects MH - *Natural Orifice Endoscopic Surgery/adverse effects MH - Risk Factors MH - Treatment Outcome OTO - NOTNLM OT - Adverse Events OT - Clinical Prediction OT - POEM EDAT- 2021/04/28 06:00 MHDA- 2021/09/10 06:00 CRDT- 2021/04/27 20:10 PHST- 2020/12/24 00:00 [received] PHST- 2021/04/14 00:00 [revised] PHST- 2021/04/19 00:00 [accepted] PHST- 2021/04/28 06:00 [pubmed] PHST- 2021/09/10 06:00 [medline] PHST- 2021/04/27 20:10 [entrez] AID - S1542-3565(21)00467-5 [pii] AID - 10.1016/j.cgh.2021.04.033 [doi] PST - ppublish SO - Clin Gastroenterol Hepatol. 2021 Sep;19(9):1959-1966.e3. doi: 10.1016/j.cgh.2021.04.033. Epub 2021 Apr 24.