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Short- and long-term outcomes of aortic root repair and replacement in patients undergoing acute type A aortic dissection repair: Twenty-year experience



Short- and long-term outcomes of aortic root repair and replacement in patients undergoing acute type A aortic dissection repair: Twenty-year experience



Journal of Thoracic and Cardiovascular Surgery 157(6): 2125-2136



The study objective was to evaluate the perioperative and long-term outcomes of aortic root repair and aortic root replacement and provide evidence for root management in acute type A aortic dissection. From 1996 to 2017, 491 patients underwent aortic root repair (n = 307) or aortic root replacement (n = 184) (62% bioprosthesis) for acute type A aortic dissection. Indications for aortic root replacement were intimal tear at the aortic root, root measuring 4.5 cm or more, connective tissue disease, or unrepairable aortic valvulopathy. Primary outcomes were in-hospital mortality, long-term survival, and reoperation rate for root pathology. Patients' median age was 61 years and 56 years in the aortic root repair group and aortic root replacement group, respectively. The aortic root replacement group had more renal failure requiring dialysis, previous cardiac intervention or surgery, heart failure, coronary malperfusion syndrome, acute myocardial infarction, and severe aortic insufficiency, as well as concomitant coronary artery bypass grafting, tricuspid valve repair, and longer cardiopulmonary bypass and aortic crossclamp times but similar arch procedures. Perioperative outcomes were similar in the aortic root repair and aortic root replacement groups, including in-hospital mortality (8.5% and 8.2%), new-onset renal failure requiring permanent dialysis, stroke, myocardial infarction, and sepsis. Kaplan-Meier 10-year survival was 62% and 65%, and the 15-year cumulative incidence of reoperation was 11% and 7% in the aortic root repair and aortic root replacement groups, respectively. The primary indication for root reoperation was aortic root aneurysm in the aortic root repair group and bioprosthetic valve deterioration in the aortic root replacement group. Aortic root repair and aortic root replacement are appropriate surgical options for acute type A aortic dissection repair with favorable short- and long-term outcomes. Aortic root replacement should be performed for patients with acute type A aortic dissection presenting with an intimal tear at the aortic root, root aneurysm 4.5 cm or greater, connective tissue disease, or unrepairable aortic valvulopathy.

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Accession: 066474514

Download citation: RISBibTeXText

PMID: 30737109

DOI: 10.1016/j.jtcvs.2018.09.129


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