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Table 6 Comparison between group A: VCV and group B: PCV-VG according to PaCO2

From: 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

PaCO2 Group A: VCV (n = 30) Group B: PCV-VG (n = 30) t test p value
Preoperative 33.57 ± 3.05 32.35 ± 4.31 1.266 0.210
After induction 34.24 ± 3.11 32.49 ± 4.40 1.779 0.080
Immediate postoperative 33.85 ± 3.72 33.39 ± 5.07 0.401 0.690
Postoperative at 30 min 34.05 ± 3.61 34.08 ± 4.77 0.027 0.978
Postoperative at 120 min 34.32 ± 3.68 34.85 ± 4.26 0.516 0.608
Postoperative at 240 min 35.07 ± 4.13 35.56 ± 4.60 0.434 0.665
Postoperative at 360 min 35.35 ± 3.48 35.51 ± 4.34 0.158 0.875
  1. Data presented as mean ± SD
  2. Independent sample t test; p value > 0.05 NS; *p value < 0.05 S
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