Current Role and Outcomes of Ascending Aortic Replacement for Severe Nonaneurysmal Aortic Atherosclerosis

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Abstract

Background: Severe atherosclerosis of the ascending aorta is a challenging issue potentially affecting indications for surgery, operative choices, and patients' outcome. No standard treatment has emerged to date, and uncertainties persist about criteria for selecting patients and procedures. Methods: Replacement of the atherosclerotic ascending aorta was performed in 64 patients at time of either aortic (n = 49), mitral (n = 21), or tricuspid (n = 7) valve surgery. Coronary artery bypass grafting was performed in 53 patients, and the majority of patients underwent combined procedures (n = 49). Mean age was 72.0 ± 7.6 years. The expected operative mortality, by logistic European System for Cardiac Operative Risk Evaluation, was 29.0% accounting for ascending aortic replacement and 13.1% disregarding it. Circulatory arrest under deep hypothermia, eventually combined with either retrograde or antegrade brain perfusion, was required in 61 cases. Results: Early death, stroke, and myocardial infarction rates were 10.9%, 6.3%, and 7.8%, respectively. Factors univariately associated with early deaths were preoperative renal failure requiring dialysis (p = 0.001) and longer cardiopulmonary bypass (p = 0.001) and cardioplegia (p = 0.008) times. Cumulative survival at 1, 3, and 5 years was 86% ± 4%, 74% ± 6%, and 68% ± 8%, respectively. Conclusions: Replacement of the atherosclerotic ascending aorta can be carried out at acceptable mortality rates despite the high rates of preoperative comorbidity and the significant incidence of postoperative complications. © 2010 The Society of Thoracic Surgeons.

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APA

Zingone, B., Gatti, G., Spina, A., Rauber, E., Dreas, L., Forti, G., & Pappalardo, A. (2010). Current Role and Outcomes of Ascending Aortic Replacement for Severe Nonaneurysmal Aortic Atherosclerosis. Annals of Thoracic Surgery, 89(2), 429–434. https://doi.org/10.1016/j.athoracsur.2009.11.035

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