Comparison of Volume Controlled Ventilation With 1:1 Inspiratory to Expiratory Ratio and Autoflow-volume Controlled Ventilation in Robot-assisted Laparoscopic Radical Prostatectomy With Steep Trendelenburg Position and Pneumoperitoneum

Comparison of Volume Controlled Ventilation With 1:1 Inspiratory to Expiratory Ratio and Autoflow-volume Controlled Ventilation in Robot-assisted Laparoscopic Radical Prostatectomy With Steep Trendelenburg Position and Pneumoperitoneum

The purpose of this study is to compare the 1: 1 I: E ratio VCV and the autoflow VCV in patients undergoing robot assisted laparoscopic prostatectomy

Inclusion Criteria:

1. adult (20-80 years old)
2. patients undergoing robot assisted laparoscopic prostatectomy

Exclusion Criteria:

1. history of COPD
2. decreased heart function (EF <50%)
3. BMI>30
4. patients who cannot read the consent form (e.g., blind, foreigner)