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Eur J Cardiothorac Surg 2000;17:259-265
© 2000 Elsevier Science NL

Aortic root replacement with coronary button re-implantation: low risk and predictable outcome

Oxford Heart Centre, John Radcliffe Hospital, Headley Way, Headington, Oxford OX3 9DU, UK

Corresponding author. Tel.: +44-1865-220-269; fax: +44-1865-220-268
e-mail: swestaby{at}AHF.org.uk

Objective: Cardiac morbidity in aortic root replacement often occurs through myocardial ischaemia. We analyzed a 10 year experience of all root replacement operations by one surgeon to determine the incidence of coronary complications and risk factors for early mortality. Methods: The study included 140 aortic root replacement patients (aged from 2 to 77 years; median 53 years) operated between 1988 and 1999. Thirty-four had Marfan's syndrome. Eleven had root infection requiring homograft replacement. Nineteen were reoperations (14%). Concomitant procedures were arch replacement (16), mitral replacement (five), and coronary bypass (22). Mobilization and reimplantation of the coronary ostia was performed in 139 patients. We performed the distal graft anastomosis before right coronary reimplantation. Results: There were eight hospital deaths (5.7%). Risk factors for hospital mortality were: preoperative NYHA class IV, shock, LVEF 30%, acute dissection, concomitant mitral valve replacement, pump time 160 min, reentry for bleeding, and postoperative renal failure. Neither myocardial ischaemia nor right ventricular dysfunction contribute to mortality. There were 18 late deaths with an actuarial survival of 79% at 5 years. There were no late coronary false aneurysms. Conclusions: Button reimplantation with the sequence described is predictable and safe. Wrap-around is unnecessary. Coronary aneurysms have been eliminated.

Key Words: Aorta • Coronary • Replacement • Root • Technique • Valve

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