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 1 Demographic data

Demographic data	Group (V), VCV (n = 26)	Group (P), PCV (n = 26)	t/#χ²	p value
Age (years)
Range	21–50	20–50	1.457	0.124
Mean ± SD	31.82 ± 7.32	30.87 ± 7.10	1.457	0.124
Gender (number, %)
Male	8 (30.8%)	7 (26.9%)	0.894	0.497
Female	18 (69.2%)	19 (73.1%)	0.894	0.497
Duration of surgery (min)
Range	90–180	90–180	0.192	0.663
Mean ± SD	143.21 ± 26.20	138.91 ± 25.42	0.192	0.663

This table shows no statistically significant difference between groups according to demographic data
t independent sample t test, #χ² chi-square test, PCV pressure-controlled ventilation, VCV volume-controlled ventilation
p value > 0.05 NS; *p value < 0.05 S; **p value < 0.001 HS