{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,9]],"date-time":"2025-11-09T03:41:06Z","timestamp":1762659666973},"reference-count":19,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2018,4,26]],"date-time":"2018-04-26T00:00:00Z","timestamp":1524700800000},"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":[[2018,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background and Aim<\/jats:title><jats:p>Esophagogastric junction outflow obstruction (EGJOO) may be due to anatomical abnormalities, but it is unclear how to evaluate them after high\u2010resolution manometry. We aimed to determine (i) clinical and high\u2010resolution manometry parameters differentiating anatomical EGJOO from functional EGJOO, (ii) investigations chosen and yield for anatomical EGJOO, and (iii) clinical outcomes of functional EGJOO.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Medical records of consecutive patients with symptomatic EGJOO from February 2012 to December 2015 were reviewed. EGJOO was defined as anatomical if investigations identified a macroscopic or microscopic pathology accounting for EGJOO.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Forty of 292 (13.7%) had EGJOO, of which 6\/40 (15%) had anatomical EGJOO (two PPI\u2010responsive esophageal eosinophilia, two infiltrating cancers, and two external compressions). Anatomical EGJOO was more likely to present with dysphagia (100% <jats:italic>vs<\/jats:italic> 29.4%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.001) and less likely with regurgitation (0% <jats:italic>vs<\/jats:italic> 41.2%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.05). Anatomical EGJOO had higher frequencies of premature contraction (50% <jats:italic>vs<\/jats:italic> 5.9%, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.003) and lower mean values of distal latency (5.6 +\/\u2212 1.3 <jats:italic>vs<\/jats:italic> 6.7 +\/\u2212 1.2, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.004). Computed tomography scans revealed 50% (3\/6) of etiologies of anatomical EGJOO. Approximately, 73.5% (25\/34) of patients with functional EGJOO had spontaneous resolution of their symptoms. One underwent pneumatic dilatation with symptom resolution while remaining eight with persistent symptoms were attributed to gastroesophageal reflux disease.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Anatomical causes are present in 15% of EGJOO. Evaluation is warranted especially in patients presenting with dysphagia. Esophageal biopsies, barium swallows, computed tomography scans, and endoscopic ultrasound are complementary in EGJOO evaluation. In patients with non\u2010obstructive symptoms and no anatomical etiologies, monitoring for spontaneous resolution is an option.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jgh.14155","type":"journal-article","created":{"date-parts":[[2018,4,16]],"date-time":"2018-04-16T18:42:12Z","timestamp":1523904132000},"page":"1745-1750","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Evaluation of symptomatic esophagogastric junction outflow obstruction"],"prefix":"10.1111","volume":"33","author":[{"given":"Andrew Ming Liang","family":"Ong","sequence":"first","affiliation":[{"name":"Department of Gastroenterology and Hepatology Singapore General Hospital  Singapore"},{"name":"Duke\u2010NUS Graduate Medical School  Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vikneswaran","family":"Namasivayam","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology Singapore General Hospital  Singapore"},{"name":"Duke\u2010NUS Graduate Medical School  Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu Tien","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology Singapore General Hospital  Singapore"},{"name":"Duke\u2010NUS Graduate Medical School  Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2018,4,26]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2982.2011.01834.x"},{"key":"e_1_2_5_3_1","first-page":"1","article-title":"Characterization of idiopathic esophagogastric junction outflow obstruction","author":"Hoeij FB","year":"2015","journal-title":"Neurogastroenterol. 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