The evidence in a Bentall procedure with Valsalva graft: is this standard of care?

BACKGROUND

Biologic valved-conduits avoids the need for anticoagulation and can exploit the excellent hemodynamic performance of stentless valves. Incorporation of the sinuses of Valsalva into the neoaortic root can improve the function and longevity of stentless valves. We report our experience in performing the Bentall procedure with a self-prefabricated composite valved-conduit and review the published experience with the Valsalva graft.

METHODS

From Feb 2005 through Sep 2017, 428 patients underwent aortic root replacement utilizing a composite graft constructed from a 27-29-mm Freestyle MS valve (Medtronic) sutured into a 28-30-mm Gelweave Valsalva prosthesis (Sulzer Vascutek, Renfrewshire, Scotland). Data were retrospectively analyzed.

RESULTS

Mean age was 58±13 years, with a male predominance (337, 79%). Additional surgical procedures included a mitral valve repair/replacement in 10 patients (2%), coronary artery bypass graft (CABG) in 114 patients (27%), and aortic arch (hemi or total) replacement in 252 patients (59%). Average cardiopulmonary bypass, cross-clamp, and circulatory arrest times were 210±57, 180±44, and 29±15 min, respectively. Thirty-day mortality was 7% (31 patients). Mean echocardiography follow-up was 27.2±29.0 months (range, 1-138 months). Pressure gradients (mean, peak) across the aortic valve on latest echocardiography were 5.59, 10.57 mmHg respectively. Freedom from >2+ aortic insufficiency (AI) at 6 and 9 years was 96%, and 87% respectively. Freedom from aortic valve replacement (AVR) at 6 and 9 years was 99%, and 95% respectively. To date, 4 (1%) patients required an additional aortic valve intervention secondary to structural valve degeneration.

CONCLUSIONS

Use of the Valsalva graft combined with the Freestyle valve for Bentall procedures is associated with favorable results. Clinical outcomes are excellent and in longitudinal follow-up, valve-related complications are minimal.