^○Satoru Murata¹, Tsutomu Itoh¹, Tomohiko Nakagawa¹, Shintaro Nakajima¹, Yuta Akamatsu¹, Hidetoshi Oka¹, Yu Inaba¹, Yujiro Kawai¹, Tatsuo Takahashi¹, Naritaka Kimura¹, Masataka Yamazaki¹, Motomi Ando², Hideyuki Shimizu¹ (1.Department of Cardiovascular Surgery Keio University Tokyo Japan, 2.Ichinomiyanishi Hospital Pulmonary Hypertension Treatment Center Ichinomiya Japan)

^○Hirotsugu Ozawa¹, Kenjirou Kaneko^1,2, Hikaru Nakagawa^1,2, Shigeki Hirayama¹, Takao Ohki² (1.Shin-yurigaoka general hospital, 2.Jikei Univesity School of Medicine)

^○Shuta Ikeda, Yohei Kawai, Takuya Tsuruoka, Masashi Sakakibara, Takayuki Fujii, Naohiro Akita, Katsuaki Meshii, Noriko Takahashi, Masayuki Sugimoto, Kiyoaki Niimi, Akio Kodama, Hiroshi Bannno, Kimihiro Komori (Division of Vascular Surgery,Department of Surgery,Nagoya University Graduate School of Medicine)

^○Shoji Fukuda, Ryumon Matsumoto, Masaki Kano, Shun Suzuki, Keita Maruno, Akinari Iwahori, Koji Kawago, Satoshi Takahashi, Toru Iwahashi, Kentaro Kamiya, Toshiya Nishibe, Hitoshi Ogino (Tokyo Medical University)

^○Shinsuke Kikuchi, Daiki Uchida, Tomoki Nakatsu, Takamitsu Tatsukawa, Ai Tochikubo, Naoya Kuriyama, Atsuhiro Koya, Nobuyoshi Azuma (Asahikawa Medical University)

^○Junichi Utoh¹, Yoshiharu Tsukamoto², Hironari Nobuoka² (1.Kumamoto Vascular Clinic, 2.Kikuchi Central Clinic)

^○Kenji Yamamoto, Shuuji Setozaki, Mamoru Hamuro, Sakae Enomoto (Okamura memorial hospital)