[1] Kyushu Univ, Fac Med Sci, Dept Cardiovasc Med, Higashi Ku, Maidashi 311, Fukuoka 8128582, Japan
[2] Kyushu Univ, Fac Med Sci, Dept Adv Cardiopulm Failure, Fukuoka, Japan
[3] Kyushu Univ, Fac Med Sci, Dept Cardiovasc Surg, Fukuoka, Japan
[4] Kyushu Univ, Fac Med Sci, Dept Surg & Sci, Fukuoka, Japan