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Ann Thorac Surg 2007;83:S752-S756
© 2007 The Society of Thoracic Surgeons

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Supplement

Remodeling or Reimplantation for Valve-Sparing Aortic Root Surgery?

Clinic of Cardiac Surgery, University Clinic of Schleswig-Holstein, Campus Luebeck, Luebeck, Germany

^_* Address correspondence to Dr Sievers, Clinic of Cardiac Surgery, University Clinic of Schleswig-Holstein, Campus Luebeck, Ratzeburger Allee 160, 23538 Luebeck. (Email: herzchir{at}medinf.mu-luebeck.de).

Presented at Aortic Surgery Symposium X, New York, NY, April 27–28, 2006.

BACKGROUND: Valve-sparing operations are gaining increasing acceptance; however, there is an ongoing discussion about the technique-specific indications. We present our experience with a follow-up of 123 months.

METHODS: Between July 1993 and July 2005, 164 consecutive patients were operated on using the remodeling (group A, n = 96) or reimplantation technique (group B, n = 68). Fifty-seven patients presented with acute type A dissection. Aortic regurgitation was present in 84%. Follow-up was 54.7 ± 28 in group A and 48.4 ± 37.3 months in group B.

RESULTS: After urgent operations, 4 patients died in each group, but none died after elective surgery. Late mortality was 8% in group A and 4% in group B. Seven patients of group A and 1 in group B required reoperation. Echocardiographic follow-up of reoperation-free survivors showed that 3 patients (all group A, 1.3%) had aortic regurgitation of more than grade II. Root diameter, valve pressure gradient, and valve orifice area were comparable. No gross thromboembolic or bleeding events occurred.

CONCLUSIONS: Aortic valve–sparing operations can provide acceptable long-term results in both techniques. Particular care to the annulus in the remodeling technique and different prosthesis designs in the reimplantation technique may overcome the intrinsic problems of each procedure.

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