^○Yu Oshima¹, Hideo Yoshida¹, Yuuto Narumiya¹, Shouhei Yokoyama¹, Yoshimasa Kishi¹, Takuya Kawabata¹, Munehiro Saiki¹, Keiji Yunoki¹, Kunikazu Hisamochi¹, Yuuki Oga² (1.Hiroshima City Hospital, Cardiovascular Surgery, Hiroshima, Japan, 2.Hiroshima Teishin Hospital, Surgery, Hiroshima, Japan)

^○Ryousuke Funahashi, Mitsuru Yuzaki, Kentaro Honda, Takahiro Fujimoto, Yasuka Nakanishi, Kouta Agematsu, Mitsugi Nagashima, Yoshiharu Nishimura (Departement of Thoracic and Cardiovascular Surgery, Wakayama Medical University, Wakayama, Japan)

^○Ken Yamanaka, Hiroshi Tsuneyoshi, Chikara Ueki, Hirofumi Sato, Masahiro Hirano (Shizuoka General Hospital)

^○Shinichiro Abe, Naoki Hayashida, Soichi Asano, Masashi Kabasawa, Hideomi Hasegawa, Hiroki Ikeuchi, Takahiro Ito, Shintaro Koizumi, Hirokazu Murayama (Chiba Cerebral and Cardiovascular Center)

^○Hiroshi Furukawa, Tekashi Honda, Noriaki Kuwada, Takahiko Yamasawa, Yoshiko Watanabe, Yasuhiro Yunoki, Atsushi Tabuchi, Yuji Kanaoka, Kazuo Tanemoto (Department of Cardiovascular Surgery, Kawasaki Medical School, Kurashiki, Japan)