The above indicators are monitored and evaluated at 9 points as follows: + T1: before surgery + T2: before using JV / AIV 15 minutes + T3: 15 minutes after using JV / AIV + T3': 30 minutes after using JV / AIV + T4: 15 minutes after finishing JV / AIV + T5: 15 minutes after extubation + T6: 24 hours after surgery + T7: 36 hours after surgery + T8: 72 hours after surgery SpO2, BP, and heart rate are monitored on monitoring.