Fig. 4. Changes of peak inspiratory pressure and lung compliance between the i-gel group (○) and the SLMA group (●). Values are mean ± SD. ^*P < 0.05 compared with T2 value in each group. There were no significant differences in peak inspiratory pressure and lung compliance between the groups. T1: 1 min after induction, T2: 5 min before CO₂ pneumoperitoneum, T3: 5 min after start of CO₂ pneumoperitoneum, T4: 5 min before removal of pneumoperitoneum, T5: 5 min after removal of pneumoperitoneum.