Hideki Hino1, Tadashi Matsuura2. 1. Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka, 545-8586, Japan. m1165192@yahoo.co.jp. 2. Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka, 545-8586, Japan.