TYPE B AORTIC DISSECTION - A SINGLE CENTER SERIES
DOI:
https://doi.org/10.48729/pjctvs.127Abstract
Background: Type B aortic dissection (TBAD) is associated with high morbidity and mortality. The DISSECT classification aims to reunite clinical and anatomical characteristics of interest to clinicians involved in its management. This paper aims to characterize a cohort of patients admitted for type B aortic dissection in a tertiary institution.
Methods: This is a retrospective study that included all patients admitted to the hospital due to TBAD from 2006 to 2016. The computerized tomographic angiography that enabled the TBAD diagnosis were reevaluated using DISSECT classification.
Results: Thirty-two patients were included in this case series. As to DISSECT classification, 79.3% were acute (Duration), 66% had a primary Intimal tear location in aortic arch, the maximum aortic diameter was 44±13mm (Size), 60% extended from aortic arch to abdomen or iliac arteries (Segmental Extent), 28% presented with Complications, and 28% had partial Thrombosis of false lumen. Six patients underwent intervention during the follow-up period. At 12 months, overall survival was 75.4%±8.3% and survival free of aorta-related mortality was 87.0±6.1%. Survival free of aortic dilatation was 82.6±9.5%. In univariate analysis, the presence of complications and chronic kidney disease associated with increased overall and aorta-related mortality rates. Hypertension was associated with aortic dilatation.
Conclusions: The outcomes after TBAD in a Portuguese center are reported. All interventions in TBAD were performed due to complications. The presence of complications and chronic kidney disease was associated with overall mortality and aorta-related mortality and hypertension with aortic dilatation. DISSECT classification was possible to apply in all patients.
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References
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