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Acute aortic dissection type A: Impact of aortic specialists on short and long term outcomes. | LitMetric

AI Article Synopsis

Article Abstract

Objectives: Acute aortic dissection type-A (AADA) is a life threatening condition which requires emergency surgery. Surgery is usually performed by cardiac surgeons with various levels of aortic surgical experience. We compared the short-term perioperative outcome and long-term survival of patients operated by specialist aortic surgeons (SASs)and those who were operated by surgeons without specialist expertise.

Methods: A single center retrospective review of 232 patients who underwent acute surgery for AADA was conducted between 2005 and 2020. The cohort was divided into those operated on by SASs (Group A, n = 186) and those operated on by nonaortic surgeons (Group B, n = 46). Statistical comparison was done using regression modelling and groups were propensity matched. Kaplan-Meier comparison was undertaken using STATA14.

Results: Of 232 patients, 186 were operated on by an aortic specialist and 46 were operated by a nonaortic specialist. Overall 30-day mortality was 10% in Group A compared to 26.0% in Group B (unadjusted: p = .01, multivariate: p = .02, and propensity matched p = .05). Long-term mortality at 14 years was 26% in Group A compared to 52.0% in Group B (unadjusted: p = .001, multivariate: p = .001, and propensity matched: p = .01). Aortic surgeons performed a significantly higher number of aortic root procedures (43.0% vs. 17.3%, p = .001). The cross-clamp time and bypass time was significantly shorter in Group A patients (89 vs. 105 min, p < .01 and 153 vs. 185, p = < .001). Postoperative requirement for renal filtration was (19% vs. 37%, unadjusted p = .01, multivariate p = .03 and propensity matched p = .04). Although postoperative bleeding was less in Group A (4.0% vs. 11.0%, unadjusted p = .05) after propensity matching it was not statistically significant.

Conclusions: In patients with AADA, surgery performed by aortic specialist's results in improved outcomes. Aortic specialists replaced more of dissected aorta, resulting in an increased number of complex procedures, which may explain improved long-term survival after AADA in this cohort. This study adds further support in establishing a specialist aortic surgical service in cardiac centers.

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Source
http://dx.doi.org/10.1111/jocs.15292DOI Listing

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