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. 1996 Jan;75(1):62–66. doi: 10.1136/hrt.75.1.62

Fate of the native aorta after repair of acute type A dissection: a magnetic resonance imaging study.

N R Moore 1, A J Parry 1, B Trottman-Dickenson 1, R Pillai 1, S Westaby 1
PMCID: PMC484224  PMID: 8624875

Abstract

OBJECTIVE--To determine late patency of the aortic false lumen and propensity for aneurysm formation after repair of type A dissection. DESIGN--Retrospective follow up study. SETTING--Regional cardiac surgical unit. PATIENTS--28 patients after repair of type A dissection. METHODS--Magnetic resonance imaging (MRI) was performed between 6 weeks and 12 months after operation. RESULTS--A patent distal false lumen with demonstrable blood flow was found in 22 patients (78%). Only six patients had complete obliteration of the false lumen by thrombus. The conduct of operation did not influence this. Nine patients (32%) showed aneurysmal dilatation of the false lumen and three had a repeat operation. CONCLUSIONS--So-called "successful repair" of aortic dissection does not obliterate the distal false lumen. MRI is a safe and effective radiological procedure for determining patency and dilatation in the false lumen. Patients with type A dissection with blood flow in the false lumen should be studied every 6 months to look for aneurysmal dilatation.

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Selected References

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