Fig. 3.

Comparisons of PaO₂ (a) PaCO₂ (b) peak airway pressure (c) plateau airway pressure (d systolic blood pressure (e) heart rate (f) pulse pressure variation (g) and body temperature (h) between the propofol group (blue circle) and the sevoflurane group (red circle) during robot-assisted laparoscopic prostatectomy. Note that all parameters except heart rate do not significantly differ between the two groups. PaCO₂ = arterial carbon dioxide partial pressure, PaO₂ = arterial oxygen partial pressure, T1 = 10 min after anesthetic induction in the supine position, T2 = 5 min after establishing carbon dioxide pneumoperitoneum and a steep Trendelenburg position, T3 = 30 min after establishing carbon dioxide pneumoperitoneum and a steep Trendelenburg position, T4 = 60 min after establishing carbon dioxide pneumoperitoneum and a steep Trendelenburg position, and T5 = at the end of surgery after desufflation of pneumoperitoneum in the supine position. * indicates P < 0.05 between the two groups; † indicates P < 0.01 between the two groups