BACKGROUND: Surgery for Stanford type A aortic dissection (TAAD) is associated with an increased risk of late aortic reoperations due to degeneration of the dissected aorta. METHODS: The subjects of this analysis were 990 TAAD patients who survived surgery for acute TAAD and had complete data on the diameter and dissection status of all aortic segments. RESULTS: After a mean follow-up of 4.2 ± 3.6 years, 60 patients underwent 85 distal aortic reoperations. Ten-year cumulative incidence of distal aortic reoperation was 9.6%. Multivariable competing risk analysis showed that the maximum preoperative diameter of the abdominal aorta (SHR 1.041, 95%CI 1.008-1.075), abdominal aorta dissection (SHR 2.133, 95%CI 1.156-3.937) and genetic syndromes (SHR 2.840, 95%CI 1.001-8.060) were independent predictors of distal aortic reoperation. Patients with a maximum diameter of the abdominal aorta >30 mm and/or abdominal aortic dissection had a cumulative incidence of 10-year distal aortic reoperation of 12.0% compared to 5.7% in those without these risk factors (adjusted SHR 2.076, 95%CI 1.062-4.060). CONCLUSION: TAAD patients with genetic syndromes, and increased size and dissection of the abdominal aorta have an increased the risk of distal aortic reoperations. A policy of extensive surgical or hybrid primary aortic repair, completion endovascular procedures for aortic remodeling and tight surveillance may be justified in these patients. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT04831073.

Cardiac Surgery Molinette Hospital University of Turin Turin Italy

Cardiothoracic Department Azienda Sanitaria Universitaria Friuli Centrale Udine Italy

Cardiovascular Surgery Department University Hospital Gregorio Marañón Madrid Spain

Department of Cardiac Surgery 3rd Faculty of Medicine Charles University and University Hospital Kralovske Vinohrady Prague Czech Republic

Department of Cardiac Surgery Centre Hospitalier Annecy Genevois Epagny Metz Tessy France

Department of Cardiac Surgery Glenfield Hospital Leicester United Kingdom

Department of Cardiac Surgery Hôpitaux Universitaires Henri Mondor Assistance Publique Hôpitaux de Paris Creteil France

Department of Cardiac Surgery LMU University Hospital Ludwig Maximilian University Munich Germany

Department of Cardiac Surgery Ziekenhuis Oost Limburg Genk Belgium

Department of Cardiothoracic Surgery University Hospital Muenster Muenster Germany

Department of Cardiovascular Surgery Hospital Clínic de Barcelona University of Barcelona Spain

Department of Cardiovascular Surgery University Heart and Vascular Center Hamburg Hamburg Germany

Department of Medicine South Karelia Central Hospital University of Helsinki Lappeenranta Finland

Department of Medicine South Karelia Central Hospital University of Helsinki Lappeenranta Finland; Heart and Lung Center Helsinki University Hospital University of Helsinki Helsinki Finland

Department of Thoracic and Cardiovascular Surgery University of Franche Comte Besancon France

Division of Cardiac Surgery Cardio thoracic and Vascular Department Azienda Sanitaria Universitaria Giuliano Isontina Trieste Italy

Division of Cardiac Surgery University of Verona Medical School Verona Italy

Heart and Lung Center Helsinki University Hospital University of Helsinki Helsinki Finland; Research Unit of Surgery Anesthesia and Critical Care University of Oulu Oulu Finland

Liverpool Centre for Cardiovascular Sciences Liverpool Heart and Chest Hospital Liverpool United Kingdom

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ClinicalTrials.gov
NCT04831073