The effects of robot-assisted laparoscopic surgery with Trendelenburg position on short-term postoperative respiratory diaphragmatic function

Table 2 Intraoperative pulmonary variables during the operation

Variables	Group	5 min after intubation	1 h after pneumoperi-toneum/ skin incision	2 h after pneumoperi-toneum/ skin incision	P value
Variables	Group	5 min after intubation	1 h after pneumoperi-toneum/ skin incision	2 h after pneumoperi-toneum/ skin incision	Group×time	Intergroup
Oxygenation index	robot-assisted surgery group	325.9 ± 96.9	329.6 ± 62.3	329.5 ± 63.7	0.237	0.463
Oxygenation index	general surgery group	310.9 ± 132.7	318.6 ± 69.9	297.8 ± 65.7	0.237	0.463
PaCO₂ (mmHg)	robot-assisted surgery group	31.5 ± 3.6	36.9 ± 4.2	37.4 ± 5.7*	<0.001	0.150
PaCO₂ (mmHg)	general surgery group	32.7 ± 4.0	33.1 ± 4.3	35.1 ± 4.0	<0.001	0.150
Peak airway pressure(mmHg)	robot-assisted surgery group	16.8 ± 4.5	25.0 ± 4.0	23.5 ± 4.9*	<0.001	<0.001
Peak airway pressure(mmHg)	general surgery group	15.3 ± 2.7	16.4 ± 2.6	17.1 ± 2.4	<0.001	<0.001
Lung compliance (ml/mmH₂O)	robot-assisted surgery group	47.2 ± 14.2	26.7 ± 8.5	28.5 ± 9.7*	<0.001	<0.001
Lung compliance (ml/mmH₂O)	general surgery group	38.4 ± 6.1	34.9 ± 5.2	34.6 ± 4.9	<0.001	<0.001

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