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Clinical impact of collateral circulation in patients with median arcuate ligament syndrome

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dc.contributor.authorHeo, S-
dc.contributor.authorKim, HJ-
dc.contributor.authorKim, B-
dc.contributor.authorLee, JH-
dc.contributor.authorKim, J-
dc.contributor.authorKim, JK-
dc.date.accessioned2019-11-13T00:18:46Z-
dc.date.available2019-11-13T00:18:46Z-
dc.date.issued2018-
dc.identifier.issn1305-3825-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/17027-
dc.description.abstractPURPOSE: We aimed to analyze computed tomography (CT) findings and medical records of patients diagnosed with median arcuate ligament syndrome (MALS) and evaluate possible risk factors associated with vascular complications that develop in patients with MALS.
METHODS: This retrospective study was approved by the institutional review board, and the requirement to obtain informed consent was waived. A total of 37 consecutive patients were diagnosed with MALS using both axial and sagittal CT reconstruction imaging at a single institution over a 7-year period. Dynamic contrast-enhanced CT data, medical records, and angiography results were reviewed.
RESULTS: Thirty-two (86.5%) patients were asymptomatic and incidentally diagnosed with MALS using CT. Seventeen (45.9%) patients exhibited significant arterial collateral circulations and nine (24.3%) were found to have splanchnic artery aneurysms, including one (2.7%) with acute bleeding secondary to aneurysm rupture. Peripancreatic vascular network including pancreaticoduodenal arcades and dorsal pancreatic artery was the most common site for development of both collateral circulations (16/22, 72.7%) and aneurysms (9/16, 56.3%). Splanchnic artery aneurysms were significantly more common in patients with collateral circulations (8/17, 47.1%) compared with those without collateral circulations (1/20, 5%) (P < 0.01). At least one peripancreatic vascular aneurysm was found in five of nine patients with splanchnic artery aneurysms (55.6%).
CONCLUSION: Splanchnic artery aneurysms are not uncommon in asymptomatic patients with collateral circulations caused by significant celiac trunk stenosis or obstruction due to median arcuate ligament. Therefore, careful imaging evaluation is necessary in patients with peripancreatic collateral circulations associated with MALS and regular follow-up is recommended for possibility of aneurysm development and rupture. Prophylactic endovascular treatment should be specifically performed in patients with pancreaticoduodenal arcade aneurysms to prevent life-threatening aneurysm rupture regardless of size.
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dc.language.isoen-
dc.subject.MESHAneurysm-
dc.subject.MESHCeliac Artery-
dc.subject.MESHCollateral Circulation-
dc.subject.MESHContrast Media-
dc.subject.MESHFemale-
dc.subject.MESHHumans-
dc.subject.MESHMale-
dc.subject.MESHMedian Arcuate Ligament Syndrome-
dc.subject.MESHMiddle Aged-
dc.subject.MESHRadiographic Image Enhancement-
dc.subject.MESHRetrospective Studies-
dc.subject.MESHTomography, X-Ray Computed-
dc.titleClinical impact of collateral circulation in patients with median arcuate ligament syndrome-
dc.typeArticle-
dc.identifier.pmid30091707-
dc.identifier.urlhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6045512/-
dc.contributor.affiliatedAuthor김, 혜진-
dc.contributor.affiliatedAuthor김, 보현-
dc.contributor.affiliatedAuthor이, 제희-
dc.contributor.affiliatedAuthor김, 진우-
dc.contributor.affiliatedAuthor김, 재근-
dc.type.localJournal Papers-
dc.identifier.doi10.5152/dir.2018.17514-
dc.citation.titleDiagnostic and interventional radiology (Ankara, Turkey)-
dc.citation.volume24-
dc.citation.number4-
dc.citation.date2018-
dc.citation.startPage181-
dc.citation.endPage186-
dc.identifier.bibliographicCitationDiagnostic and interventional radiology (Ankara, Turkey), 24(4). : 181-186, 2018-
dc.identifier.eissn1305-3612-
dc.relation.journalidJ013053825-
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
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