^○Norihisa Karube, Keiji Uchida, Tomoyuki Minami, Tomoki Cho, Yusuke Matsuki, Hiroko Nemoto, Naoto Yabu, Yoshihiro Kushida, Noritake Kikunishi, Mihwa Ju, Munetaka Masada (Cardiovascular Center, Yokohama City University Medical Center, Yokohama, Japan)

^○Akihisa Furuta, Shogo Mukai, Hironobu Morimoto, Daisuke Fugatami, Shuhei Okubo (Fukuyama Cardiovascular Hospital)

^○Hiromichi Sonoda, Satoshi Kimura, Tomoki Ushijima, Satoshi Fujita, Yasuhisa Oishi, Hideki Tatewaki, Yoshihisa Tanoue, Akira Shiose (Department of Cardiovascular Surgery, Kyushu University Hospital)

^○Hiroshi Kurazumi¹, Akihito Mikamo¹, Yutaro Matsuno¹, Akira Fujita¹, Ryo Suzuki¹, Masaya Takahashi², Shigeru Ikenaga², Kimikazu Hamano¹ (1.Department of Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, 2.JCHO Tokuyama Central Hospital)