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J Thorac Cardiovasc Surg 2004;127:1416-1420
© 2004 The American Association for Thoracic Surgery

Surgery for acquired cardiovascular disease

Replacement of the aortic root for acute prosthetic valve endocarditis: Prosthetic composite versus aortic allograft root replacement

^a Division of Thoracic and Cardiovascular Surgery, Hannover Medical School, Hannover, Germany

Received for publication June 15, 2003; revisions received July 30, 2003; accepted for publication August 21, 2003.

^* Address for reprints: Rainer G. Leyh, MD, PhD, Division of Thoracic and Cardiovascular Surgery, Hannover Medical School, Carl Neuberg St. 1, 30623 Hannover, Germany
leyh{at}thg.mh-hannover.de

OBJECTIVE: Aortic root replacement for prosthetic aortic valve endocarditis with accompanying destruction of the aortic root is a well-established surgical intervention. However, there is still no consensus whether prosthetic material or allogeneic material should be used. Here we report on our experience with prosthetic composite and aortic allograft root replacement in such patients during a 10-year interval.

METHODS: From 1991 through 2001, 29 patients with prosthetic aortic valve endocarditis combined with aortic root destruction underwent reoperation at our institution. Sixteen patients received aortic root replacement with a cryopreserved aortic root allograft (group A) and 13 with a prosthetic composite graft (group B). The interval between the initial operation and reoperation was 29 months (range, 5-168 months) in group A and 55 months (range, 7-248 months) in group B.

RESULTS: Hospital mortality was 18.5% (n = 5 patients, 3 in group A and 2 in group B). Median follow-up was 21 months (range, 1-48 months) for group A and 34 months (range, 1-152 months) for group B (P > .2). Survival at 1 and 5 years was 81% ± 10% and 81% ± 10% in group A and 85% ± 10% and 85% ± 10% in group B, respectively. No patient underwent reoperation for recurrent prosthetic aortic valve endocarditis.

CONCLUSIONS: Our results indicate that excellent long-term results can be achieved regardless of the material used for aortic root replacement in patients with prosthetic aortic valve endocarditis.

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