[Clinical Outcomes of Aortic Root Reoperation]

We presented our experiences of reoperative aortic root replacement and technical details. Between April 2000 and February 2021, 80 patients underwent reoperative aortic root replacement (60 male, mean age 59.3±14.4 years). The previous procedures were ascending or arch replacement in 36, aortic valve replacement (AVR) in 32, and aortic root replacement in 12. Surgical indications for reoperation included infective endocarditis or graft infection (n=31), root dilation/dissection (n=26), pseudoaneurysm(n=13), aortic valve regurgitation( n=7), and structural valve dysfunction( n=3). Mean interval from 1st operation was 6.7±6.1 years. Reoperative procedures were composed of modified Bentall( n=27), reimplantation technique (n=25), root replacement with stentless valve (n=16), partial remodeling/patch plasty( n=5), Commando operation( n=5), and Ross operation( n=2). In-hospital mortality was 8.8%(7/80 patients). The causes of mortality were sepsis in 3, pneumonia in 2, bowel perforation in 1, and anastmotic rupture with mediastinitis in 1. Freedom from 3rd time aortic root related opera tion was 90.8±4.8% at 10 years. Actuarial survival after reoperation was 67.3±6.6% at 10 years. In conclusion, the clinical short-and long-term outcomes of reoperative aortic root replacement were reasonable even in patients with complicated aortic pathologies.