Fate of the native aorta after repair of acute type A dissection: a magnetic resonance imaging study.
AUTOR(ES)
Moore, N. R.
RESUMO
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.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=484224Documentos Relacionados
- Spontaneous basilar artery dissection: contribution of magnetic resonance imaging to diagnosis.
- Acute thoracic aorta dissection: unraveling the pathophysiology of a silent killer
- Damage to cerebellocortical pathways after closed head injury: a behavioural and magnetic resonance imaging study.
- Activation of human primary visual cortex during visual recall: a magnetic resonance imaging study.
- Morphometry of the corpus callosum in monozygotic twins discordant for schizophrenia: a magnetic resonance imaging study.