{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T20:54:56Z","timestamp":1772830496792,"version":"3.50.1"},"reference-count":12,"publisher":"BMJ","issue":"8","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2019,8,7]]},"published-print":{"date-parts":[[2019,8]]},"abstract":"<jats:p>This report discusses a case of superior mesenteric artery (SMA) syndrome in a previously healthy 15-year-old boy with no weight loss or other common risk factors. The patient presented to the emergency department with acute bilious vomiting and epigastric pain after acute consumption of a meal and excessive quantities of water. The patient was diagnosed with SMA syndrome based on the findings of contrasted CT of the abdomen. In early puberty, boys have a significant increase in lean body mass and a concomitant loss of adipose tissues. These pubertal changes lead to a narrowing of the aortomesenteric space. The acute consumption of food and water caused a transient obstruction at the already-narrowed space, which resulted in the manifestation of SMA syndrome. This case demonstrates that pubertal growth spurt is a risk factor for SMA syndrome, and acute excessive ingestion can trigger SMA syndrome among those in puberty.<\/jats:p>","DOI":"10.1136\/bcr-2018-228758","type":"journal-article","created":{"date-parts":[[2019,8,26]],"date-time":"2019-08-26T13:55:15Z","timestamp":1566827715000},"page":"e228758","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":20,"title":["Superior mesenteric artery syndrome in a healthy active adolescent"],"prefix":"10.1136","volume":"12","author":[{"given":"Tsuyoshi","family":"Okamoto","sequence":"first","affiliation":[{"name":"Pediatric Intensive Care Unit, Nagano Children\u2019s Hospital, Azumino, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takumi","family":"Sato","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Hirosaki National Hospital, Hirosaki, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yukio","family":"Sasaki","sequence":"additional","affiliation":[{"name":"Department of Radiology, Hirosaki National Hospital, Hirosaki, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2019,8,26]]},"reference":[{"key":"2025082804330038000_12.8.e228758.1","doi-asserted-by":"publisher","DOI":"10.1159\/000102097"},{"key":"2025082804330038000_12.8.e228758.2","doi-asserted-by":"crossref","first-page":"24","DOI":"10.7205\/MILMED.172.1.24","article-title":"Superior mesenteric artery syndrome in a basic military trainee","volume":"172","author":"Anderson","year":"2007","journal-title":"Mil Med"},{"key":"2025082804330038000_12.8.e228758.3","doi-asserted-by":"publisher","DOI":"10.1097\/01.mpg.0000221888.36501.f2"},{"key":"2025082804330038000_12.8.e228758.4","first-page":"545","article-title":"Surgical anatomy of the superior mesenteric artery","volume":"31","author":"Derrick","year":"1965","journal-title":"Am Surg"},{"key":"2025082804330038000_12.8.e228758.5","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1007\/BF00389703","article-title":"Vascular compression of the duodenum (cast syndrome) associated with the treatment of spinal deformities. 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Acute abdominal pain caused by superior mesenteric artery syndrome in a healthy young boy. BMJ Case Rep\u00a0 2016;2016.","DOI":"10.1136\/bcr-2016-217512"},{"key":"2025082804330038000_12.8.e228758.12","doi-asserted-by":"crossref","unstructured":"Forsyth JM , Muhammad K , Mahmood K . Superior mesenteric artery syndrome as a cause for recurrent abdominal pain and vomiting in a 9-year-old girl. 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