Table 2 Comparison between the two studied groups as regards partial pressure of oxygen (PO₂)

Preoperative (T0)

79.27 ± 3.91

80.69 ± 4.33

0.220

PO₂ (after intubation) (T1)

131.13 ± 5.57

131.19 ± 5.27

0.939

PO₂ before pneumoperitoneum (T2)

181.46 ±7.24

188.31 ± 5.72

0.0001*

PO₂ JUST after pneumoperitoneum (T3)

179.58 ± 7.65

191.88 ± 5.47

0.0001*

PO₂ (T4)

177.38 ± 7.66

189.00 ± 5.51

0.0001*

PO₂ (T5)

178.65 ± 8.24

194.04 ± 7.06

0.0001*

PO₂ (T6)

178.27 ± 8.45

194.62 ± 6.15

0.0001*