4.6 Article

No Sex-Based Differences Exist in Clinical Outcomes of Extended Aortic Arch Repair for Acute Type A Aortic Dissection

Journal

CANADIAN JOURNAL OF CARDIOLOGY
Volume 39, Issue 11, Pages 1675-1685

Publisher

ELSEVIER SCIENCE INC
DOI: 10.1016/j.cjca.2023.07.019

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The association between sex and clinical outcomes after surgical repair of acute type A aortic dissection was studied in this research. The study found that there were no significant differences in terms of in-hospital and midterm outcomes between male and female patients who underwent extended arch repair for ATAAD. However, female patients tended to be older, have a lower body mass index, and were less likely to be current smokers compared to male patients.
Background: Reports regarding the association between sex and clinical outcomes after surgical repair of acute type A aortic dissection (ATAAD) are not exhaustive and in part even conflicting.Methods: A total of 786 eligible adult patients with ATAAD undergoing extended arch repair from January 2015 to December 2021 were included. They were divided into a female group (n = 161) and a male group (n = 625). In-hospital outcomes (surgical mortality and major postoperative morbidity) and midterm outcomes (survival and aortic reintervention) between the 2 groups were compared before and after propensity score matching (1:1).Results: Compared with male patients, female patients were more likely to be older (median [interquartile range]: 57 [46-67] vs 50 [42-59] years; P < 0.001) and to have a lower body mass index, but were less likely to be current smokers. Operative death occurred in 66 patients (6.8% female vs 8.8% male), without significant differences between groups before and after matching (P = 0.422 and P > 0.999, respectively). Major postoperative morbidity was observed in 313 patients (39.8%), including 57 (35.4%) female and 256 (41.0%) male patients (P = 0.199). Sex-based grouping was not significantly associated with operative mortality or major postoperative morbidity. The 5-year cumulative survival and incidence of aortic reintervention among female patients were 90.6% and 6.0%, respectively, which were not statistically different from those observed in male patients before and after matching.Conclusions: No sex-based differences were found in terms of in-hospital and midterm outcomes of extended arch repair for ATAAD.

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