{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T16:28:55Z","timestamp":1777739335076,"version":"3.51.4"},"reference-count":28,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2018,2,15]],"date-time":"2018-02-15T00:00:00Z","timestamp":1518652800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Gastro and Hepatol"],"published-print":{"date-parts":[[2018,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background and Aim<\/jats:title><jats:p>Pneumatic dilation (PD) is the most popular nonsurgical treatment for achalasia. This study investigated predicting factors, including manometric subtypes for symptom recurrence in the long term, in patients with achalasia treated with a single PD.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Between 1983 and 2013, a total of 107 patients were treated initially with a single PD and included in this longitudinal cohort study. Outcomes were correlated with demographics, symptoms (Eckardt score), and esophagographic and manometric features. Manometric tracings were retrospectively classified according to the three subtypes of the Chicago classification.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Ninety\u2010one (85%) patients were successfully treated after the first PD. The median follow\u2010up was 13.8\u00a0years (interquartile range 7\u201320). During follow\u2010up, 54% of the patients experienced a clinical relapse. The overall cumulative success rates at 2, 5, 10, 15, 20, and 25\u00a0years were 64%, 53%, 49%, 42%, 36%, and 36%, respectively. Age &lt;\u00a040\u00a0years, lower esophageal sphincter pressure &gt;\u00a015\u00a0mmHg, a cardia width &lt;\u00a05\u00a0mm, and an esophageal barium column height &gt;\u00a01\u00a0cm 4 to 12\u00a0weeks post\u2010dilation significantly correlated with symptom recurrence, whereas achalasia subtypes did not significantly correlate with the treatment results.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Pneumatic dilation in achalasia is an effective therapy in the short term, but its effect wanes in the very long term. Young age at presentation, a high lower esophageal sphincter pressure, a narrow cardia, and an esophageal barium column of &gt;\u00a01\u00a0cm after PD are predictive factors for the need of repeated treatment.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jgh.14044","type":"journal-article","created":{"date-parts":[[2017,11,15]],"date-time":"2017-11-15T16:14:44Z","timestamp":1510762484000},"page":"1067-1074","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Outcomes of pneumatic dilation in achalasia: Extended follow\u2010up of more than 25\u00a0years with a focus on manometric subtypes"],"prefix":"10.1111","volume":"33","author":[{"given":"Michaela","family":"M\u00fcller","sequence":"first","affiliation":[{"name":"Department of Gastroenterology German Diagnostic Clinic Helios Clinic Wiesbaden  Wiesbaden 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