^○Fuminori Kasashima, Kengo Kawakami, Yasushi Matsumoto, Masamitsu Endo (Department of Cardiovascular Surgery, National Hospital Organization, Kanazawa Medical Center, Kanazawa, Japan)

^○Nobuhiko Ichiki, Eisaku Nakamura, Kozhi Hurukawa, Hirohito Ishii, Yukie Shirasaki, Kazuhiro Higuchi, Daichi Sakurahara, Tomoka Hamahiro, Kunihide Nakamura (Faculty of Medicine, University of Miyazaki Hospital)

^○Satoshi Yamamoto, Masamitsu Suhara, Takuya Hashimoto, Juno Deguchi, Osamu Sato (Department of Vascular Surgery, Saitama Medical Center, Saitama Medical University)

^○Keiichiro Kawamura^1,2, Shigeru Sasaki², Tetsuo Watanabe¹, Shuji Toyama¹, Shingo Nakai¹ (1.Sendai City Hospital, 2.JCHO Sendai Hospital)