Comparison between volume-controlled ventilation and pressure-controlled volume-guaranteed ventilation in postoperative lung atelectasis using lung ultrasound following upper abdominal laparotomies: a prospective randomized study

Ain-Shams Journal of Anesthesiology

Table 2 Comparison between group A: VCV and group B: PCV-VG according to the type of surgery

Type of surgery	Group A: VCV *(n = 30)*	Group B: PCV-VG *(n = 30)*	x²	p value
Panhysterectomy	12 (40.0%)	13 (43.3%)	0.052	0.862
Ovariectomy	8 (26.7%)	9 (30.0%)	0.052	0.862
Right hemicolectomy	2 (6.7%)	2 (6.7%)	0.000	1.000
Partial gastrectomy	2 (6.7%)	1 (3.3%)	0.052	0.862
Open cholecystectomy	4 (13.3%)	3 (10.0%)	0.052	0.862
Spleenectomy	2 (6.7%)	2 (6.7%)	0.000	1.000

Data are presented as the number of cases and the percentage of each to the total number of cases in each group
x² chi-square test; P value > 0.05 NS