• Chien-Ting Hsu, Chien-Chuan Chen, Ching-Tai Lee, Tze-Yu Shieh, Hsiu-Po Wang, Ming-Shiang Wu, Jang-Ming Lee, Jia-Feng Wu, and Ping-Huei Tseng.
• Department of Pediatrics, National Taiwan University BioMedical Park Hospital, Hsinchu County, Taiwan.
• J Formos Med Assoc. 2024 Jan 1; 123 (1): 627062-70.

Background/PurposePeroral endoscopic myotomy (POEM), a novel minimally invasive treatment for esophageal achalasia, has been shown to be effective and safe for both adult and pediatric patients. However, studies on its application in children in Taiwan and its impact on growth and esophageal motility are lacking.MethodsWe conducted a retrospective study on consecutive pediatric patients who were diagnosed with esophageal achalasia at National Taiwan University Hospital and underwent POEM during 2015-2022. Disease characteristics and treatment outcomes were analyzed.ResultsTen patients (age 16.9 ± 3.1 years), nine newly diagnosed and one previously treated with pneumatic dilatation, underwent POEM for achalasia (type I/II/III: 3/7/0). Average symptom duration before diagnosis was 19.4 ± 19.9 months, mean POEM procedure time was 83.6 ± 30.7 min, and clinical success (Eckardt score ≤3) was achieved in all patients. Eight patients experienced mild adverse events during POEM, but none required further endoscopic or surgical intervention. Over a mean follow-up period of 3.7 ± 1.6 years, mean Eckardt score decreased significantly from 5.7 ± 2.4 to 1.1 ± 0.7 (p = 0.0001). The BMI z-score also increased significantly after POEM (p = 0.023). Five patients received follow-up high-resolution impedance manometry (HRIM), and all had improved lower esophageal sphincter resting pressures (p = 0.011), body contractility, and bolus transit (p = 0.019).ConclusionPOEM is an effective and safe treatment for pediatric achalasia in Taiwan. Early diagnosis and treatment with POEM may help to restore esophageal function and nutrition status in children.Copyright © 2023 Formosan Medical Association. Published by Elsevier B.V. All rights reserved.

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