{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,4]],"date-time":"2026-02-04T16:11:43Z","timestamp":1770221503686,"version":"3.49.0"},"reference-count":42,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2017,5,12]]},"abstract":"<jats:sec>\n                  <jats:title>Introduction<\/jats:title>\n                  <jats:p>Superior mesenteric artery (SMA) syndrome is a rare cause of duodenal obstruction resulting from vascular compression of the third part of the duodenum in the angle between the abdominal aorta and SMA.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Case presentation<\/jats:title>\n                  <jats:p>A 19-year-old woman with anorexia nervosa with upper gastrointestinal obstruction symptoms resorted to the emergency department. A diagnosis of SMA syndrome was made. Symptoms were solved with conservative treatment aimed at increase body weight.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Discussion<\/jats:title>\n                  <jats:p>SMA syndrome is most commonly associated with debilitating illnesses. Patients present with acute or insidious upper gastrointestinal obstruction symptoms. Aortomesenteric artery angle of \u226425\u00b0 is the most sensitive measure of diagnosis. Advances in both enteral and parenteral nutrition led to a shift towards conservative treatment.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Low threshold of suspicion is important to make a timely diagnosis and treatment. A conservative treatment aimed at increasing body weight is the first-line approach, leaving surgical intervention for failure cases.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1136\/bcr-2017-219378","type":"journal-article","created":{"date-parts":[[2017,6,2]],"date-time":"2017-06-02T04:50:16Z","timestamp":1496379016000},"page":"bcr-2017-219378","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":8,"title":["Increase body weight to treat superior mesenteric artery syndrome"],"prefix":"10.1136","volume":"2017","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2169-0859","authenticated-orcid":false,"given":"Miguel Nico","family":"Albano","sequence":"first","affiliation":[{"name":"Centro Hospitalar de Coimbra, Cirurgia C, Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3541-9974","authenticated-orcid":false,"given":"Carlos","family":"Costa Almeida","sequence":"additional","affiliation":[{"name":"Centro Hospitalar de Coimbra, Cirurgia C, Coimbra, Portugal"}]},{"given":"Jo\u00e3o Mendes","family":"Louro","sequence":"additional","affiliation":[{"name":"CHUC, HG, Coimbra, Coimbra, Portugal"}]},{"given":"Guillermo","family":"Martinez","sequence":"additional","affiliation":[{"name":"Centro Hospitalar de Coimbra, Cirurgia C, Coimbra, Portugal"}]}],"member":"239","published-online":{"date-parts":[[2017,6,2]]},"reference":[{"key":"2025082707410056000_2017.jun01_1.bcr-2017-219378.1","doi-asserted-by":"publisher","DOI":"10.1159\/000102097"},{"key":"2025082707410056000_2017.jun01_1.bcr-2017-219378.2","doi-asserted-by":"publisher","DOI":"10.1002\/bjs.1800093405"},{"key":"2025082707410056000_2017.jun01_1.bcr-2017-219378.3","doi-asserted-by":"publisher","DOI":"10.1007\/s00276-007-0238-9"},{"key":"2025082707410056000_2017.jun01_1.bcr-2017-219378.4","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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