Hemodynamic assessment of Perceval sutureless bioprosthesis by dobutamine stress echocardiography

Objectives The aim of this study was to evaluate the hemodynamic performance of a sutureless bioprosthesis under high workload at mid‐term follow‐up. Methods Thirty‐two patients who underwent isolated aortic valve replacement with a Perceval sutureless bioprosthesis with a minimum follow‐up of 1 year were enrolled in this study. S size prosthesis was deployed in 10 patients (31.3%), M size in 9 (28.1%), L size in 8 (25%) and XL size in 5 (15.6%). Effective orifice area (EOA), EOA index (EOAi), and transvalvular gradients were assessed at rest and during dobutamine stress echocardiography (DSE) a median of 19.5 months after surgery. Results Dobutamine stress echocardiography (DSE) significantly increased heart rate, stroke volume, ejection fraction, and transvalvular gradients (peak gradient, 24.0 ± 7.6 vs 38.7 ± 13.6 mm Hg, P