Affiliation: | (1) Division of Cardiovascular Surgery Cardiovascular Center, Owari Prefectural Hospital, 2135 Kariyasuka, Yamato-cho, 491 Ichinomiya, Aichi, Japan;(2) Division of Anesthesia, Cardiovascular Center, Owari Prefectural Hospital, 2135 Kariyasuka, Yamato-cho, 491 Ichinomiya, Aichi, Japan |