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J Thorac Cardiovasc Surg 1999;117:1151-1155
© 1999 Mosby, Inc.

SURGERY FOR ADULT CARDIOVASCULAR DISEASE

AORTIC ROOT RECONSTRUCTION WITH PRESERVATION OF NATIVE AORTIC VALVE AND SINUSES IN AORTIC ROOT DILATATION WITH AORTIC REGURGITATION

From the Department of Cardiac Surgery, Herzzentrum, University of Leipzig, Leipzig, Germany.

Received for publication Oct 26, 1998. Revisions requested Dec 9, 1998. Revisions received Feb 23, 1999. Accepted for publication Feb 26, 1999. Address for reprints: Jacques A. M. van Son, MD, PhD, Herzzentrum, University of Leipzig, Russenstrasse 19, D-04289, Leipzig, Germany.

Background: We assessed the results of a modified technique for aortic root reconstruction including preservation of the native aortic valve and sinuses.
Methods: A modified technique for reconstruction of the aortic root was devised in which the native aortic sinuses are preserved and remodeled, the diameter of the sinotubular junction is reduced, the ventriculoaortic junction is reinforced with a Dacron prosthesis, and the coronary ostia are reimplanted. Since January 1995, this modified operative technique was performed in 13 patients with a mean age of 54 ± 21 years. The median grade of aortic regurgitation was 3; in 10 patients it was caused by dilatation of the sinotubular junction, and 3 had additional annuloaortic ectasia.
Results: The aortic crossclamping time was 61 ± 18 minutes. In-hospital mortality was 2 of 13 (15.3%) patients, both deaths being related to complications of aortic dissection. In 1 patient aortic regurgitation increased to grade 3, necessitating aortic valve replacement. At a mean follow-up of 2.1 years, the remaining 10 patients had stable aortic valve function with a median grade of regurgitation of 1. The mean New York Heart Association functional class was 1.2.
Conclusions: Aortic root reconstruction with preservation of the native aortic valve and sinuses allows symmetric reconstruction of the aortic sinuses and adaptation of the diameters of the sinotubular and ventriculoaortic junctions, thus optimizing aortic valve function. Moreover, it prevents contact of the aortic valve leaflets with the Dacron graft, which may enhance the durability of the repair. (J Thorac Cardiovasc Surg 1999;117:1151-6)

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