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Postoperative exercise tolerance after aortic valve replacement by small-size prosthesis

Functional consequence of small-size aortic prosthesis

Pierre Becassis, MD^*, Maurice Hayot, MD, PhD, Jean-Marc Frapier, MD, Florence Leclercq, MD^*, Lionel Beck, MD^*, J.érome Brunet, MD^*, Eric Arnaud, MD^*, Christian Prefaut, MD, PhD, Paul-André Chaptal, MD, J. M. Davy, MD^*, Patrick Messner-Pellenc, MD, PhD^* and R. Grolleau, MD^*

^* Services de Cardiologie, Hopital Arnaud de Villeneuve, Montpellier, France
Service d’Exploration Fonctionnelle, Hopital Arnaud de Villeneuve, Montpellier, France
Service de Chirurgie Cardiaque et Vasculaire, Hopital Arnaud de Villeneuve, Montpellier, France

View larger version (24K): [in a new window]   Figure 1 Comparison between exercise capacity of patients (n = 14) with controls (n = 14).

View larger version (12K): [in a new window]   Figure 2 Plot of individual data of early after peak exercise gradients for No. 19 and No. 21 prostheses.

View larger version (12K): [in a new window]   Figure 3 Plot of individual data of early after peak exercise gradients for Medtronic Hall (MH) and St. Jude Medical (SJM).

View larger version (10K): [in a new window]   Figure 4 Correlation between rest and early after peak exercise prosthesis gradients. (The correlation does not persist if we suppress the leverage point in the upper right corner of the graph.)

View larger version (11K): [in a new window]   Figure 5 No correlations between peak gradients (rest and early after exercise) and VO2max were observed. Open square = early after exercise peak gradient; closed circle = rest peak gradient.