Comparative study between volume-controlled ventilation and pressure-controlled ventilation in prevention of postoperative pulmonary atelectasis in morbidly obese patients undergoing laparoscopic gastric sleeve surgery

Ain-Shams Journal of Anesthesiology

Table 3 SaO₂ (%)

SaO₂	Group (V), VCV (n = 26)	Group (P) PCV, (n = 26)	t test	p value
Preoperative	96.94 ± 1.45	97.35 ± 1.37	1.516	0.155
Intraoperative	96.32 ± 1.85	97.25 ± 1.37	2.384	0.027*
30 min after extubation	96.64 ± 1.45	97.18 ± 1.45	0.489	0.581
12 h after extubation	96.29 ± 2.71	96.89 ± 2.48	0.267	0.729
24 h after extubation	96.35 ± 2.29	97.21 ± 2.33	0.510	0.563

This table shows statistically significant increase in intraoperative arterial oxygen saturation in group P compared to group V
t independent sample t test, PCV pressure-controlled ventilation, VCV volume-controlled ventilation
p value > 0.05 NS; *p value < 0.05 S