[1] Montreal Heart Inst, Dept Surg, Montreal, PQ H1T 1C8, Canada
[2] Montreal Heart Inst, Dept Anesthesiol, Montreal, PQ H1T 1C8, Canada
[3] Montreal Heart Inst, Dept Cardiol, Montreal, PQ H1T 1C8, Canada
[4] Univ Montreal, Montreal, PQ H3C 3J7, Canada
[5] Clin Pasteur, Dept Cardiol, Toulouse, France