〇hisashi fukushima¹, yoshiaki tanaka¹, junpei osone¹, maki hosoya¹, masaru tanno² (1. National Hospital Organization Mito Medical Center, 2. Tanno Hospital)

〇Masahiro Kanazawa¹, Toshiyasu Suzuki² (1. Tokai Univ. School Oiso Hospital , 2. Tokai Univ.)

〇keika mukaihara¹, Maiko Hasegawa¹, Tomotsugu Yamada¹, Naoko Oohira¹, Takahiro Moriyama¹, Yuichi Kanmura¹ (1. Kagoshima university hospital)

〇Kuniko Iida¹, Hajime Segawa², Kouichi Kito¹ (1. Shiga Medical Center for Adults, 2. Kyoto University Hospital)

〇Seiichi Kamisawa¹, Yuka Matsuki¹, Yusuke Sagami², Ritsuko Saito², Ko Takakura³, Kenji Sigemi¹ (1. University of Fukui faculty of medical sciences Anesthesiology and Reanimatology, 2. University of Fukui Hospital Intensive Care Unit, 3. Gero Prefectual Gero Hospital)

〇YUJI SOEDA¹, RYOUHEI MIYAZAKI², SUMIO HOKA³ (1. Department of Anesthesiology Kyushu University Hospital, 2. Operating rooms Kyushu University Hospital, 3. Department of Anesthesiology and Critical care medicine Kyushu University Graduate School of Medicine)