〇Reiko Sato¹, Yoshifumi Okada¹, Tieko Omori¹, Jyun Suzuki¹, Tosie Takenaka¹, Teiji Irimada¹ (1. ishinomaki red cross hospital)

〇Kunie Sato¹, Michio Kumagai², Hiroaki Toyama³, Toru Murakami³, Yutaka Ejima⁴, Masanori Yamauchi² (1. Sendai Red Cross Hospital, 2. Tohoku University School of Medicine Anesthesiology and Perioperative Medicine, 3. Tohoku University Hospital Department of Anesthesiology, 4. Tohoku University Hospital Central Operation Division)

〇Ikuto Otsuki^1,2, Yukihiro Kumeta², Kenichi Nakabayashi², Michiaki Yamakage¹ (1. Department of Anesthesiology, school of medicine, Sapporo Medical University, 2. Department of Anesthesia, Otaru General Hospital)