Task: Answer Verification
Input (English): Question: Does mitral valve repair by Alfieri 's technique limit exercise tolerance more than Carpentier 's correction?
Answer: Alfieri's technique has the same efficiency on improvement of MR and clinical status than classical repair. Despite a higher restriction of mitral valve area at rest in group A, gradient and mean VO2 max at peak exercise were similar in both groups.
Output (English): no