{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T00:39:36Z","timestamp":1777941576559,"version":"3.51.4"},"reference-count":26,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2017,10,2]],"date-time":"2017-10-02T00:00:00Z","timestamp":1506902400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Vasc Endovascular Surg"],"published-print":{"date-parts":[[2017,11]]},"abstract":"<jats:sec>\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>There is no detailed information available about trend in the morphological change after conservative medical treatment in patients with symptomatic spontaneous isolated superior mesenteric artery dissection (SISMAD).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>We enrolled 27 consecutive patients with symptomatic SISMAD who underwent conservative medical treatment between 2006 and 2015. The long-term prognosis, natural history, and serial follow-up computed tomography (CT) findings of risk factors of rupture such as arterial diameter and false lumen enhancement were retrospectively assessed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Spontaneous isolated superior mesenteric artery dissection usually developed in middle-aged men around 50 years old who had a history of smoking. Follow-up CT was performed at 1 to 6 months, 7 to 12 months, and after 12 months. Superior mesenteric artery (SMA) maximum diameter was 10.3 mm (quartile 9.5-11.3) on initial CT and expanded in 47.1% patients during 1- to 6-month follow-up, which decreased over time ( P &lt; .001 at 7- to 12-month follow-up, P = .001 after 12-month follow-up). On the other hand, false lumen enhancements were revealed in 9 (33.3%) patients on initial CT. The size of false lumen enhancement was expanded in the longest diameter in 35.3% patients and in shortest diameter in 29.4% during 1- to 6-month follow-up. However, the size of false lumen decreased in all patients after 12-month follow-up. All patients were alive without arterial aneurysm rupture and hospital readmission during the median of 523 days (170-799) study period.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>We demonstrated that both SMA maximum diameter and false lumen enhancement were transiently expanded in some patients during 6-month follow-up, but no longer expanded after 12-month follow-up. Patients with symptomatic SISMAD could be treated medically with scheduled careful follow-up CT evaluations.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/1538574417729271","type":"journal-article","created":{"date-parts":[[2017,10,3]],"date-time":"2017-10-03T13:40:53Z","timestamp":1507038053000},"page":"538-544","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Serial Follow-Up Evaluation With Computed Tomography After Conservative Medical Treatment in Patients With Symptomatic Spontaneous Isolated Superior Mesenteric Artery Dissection"],"prefix":"10.1177","volume":"51","author":[{"given":"Toshihisa","family":"Ichiba","sequence":"first","affiliation":[{"name":"Department of Emergency Medicine, Hiroshima City Hospital, Hiroshima-shi, Hiroshima, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masahiko","family":"Hara","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keiji","family":"Yunoki","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Surgery, Hiroshima City Hospital, Hiroshima-shi, Hiroshima, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masaki","family":"Urashima","sequence":"additional","affiliation":[{"name":"Department of Radiology, Hiroshima City Hospital, Hiroshima-shi, Hiroshima, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Naitou","sequence":"additional","affiliation":[{"name":"Department of Emergency Medicine, Hiroshima City Hospital, Hiroshima-shi, Hiroshima, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2017,10,2]]},"reference":[{"key":"bibr1-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2014.01.040"},{"key":"bibr2-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1016\/j.avsg.2014.04.007"},{"key":"bibr3-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2015.09.047"},{"key":"bibr4-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2012.11.121"},{"key":"bibr5-1538574417729271","doi-asserted-by":"publisher","DOI":"10.3400\/avd.oa.14-00071"},{"key":"bibr6-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2011.03.001"},{"key":"bibr7-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1253\/circj.CJ-16-0406"},{"key":"bibr8-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2011.07.052"},{"key":"bibr9-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2013.07.112"},{"key":"bibr10-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1253\/circj.CJ-15-1369"},{"key":"bibr11-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1007\/s00595-014-0849-9"},{"key":"bibr12-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.109.927517"},{"key":"bibr13-1538574417729271","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2012.11.048"},{"key":"bibr14-1538574417729271","doi-asserted-by":"crossref","unstructured":"Ichiba T. 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