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Table 5 Comparison between group A: VCV and group B: PCV-VG according to SaO2

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

SaO2 Group A: VCV (n = 30) Group B: PCV-VG (n = 30) t test p value
Preoperative 96.75 ± 1.45 97.16 ± 1.37 1.126 0.264
After induction 96.65 ± 1.47 97.06 ± 1.30 1.144 0.257
Immediate postoperative 95.83 ± 1.85 96.99 ± 1.45 2.703 0.009*
Postoperative at 30 min 95.81 ± 1.55 96.79 ± 1.32 2.637 0.0107*
Postoperative at 120 min 95.84 ± 2.24 96.64 ± 2.23 1.386 0.171
Postoperative at 240 min 96.10 ± 2.70 96.70 ± 2.48 0.896 0.373
Postoperative at 360 min 96.16 ± 2.29 97.02 ± 2.33 1.442 0.154
  1. Data presented as mean ± SD and numbers as appropriate
  2. Independent sample t test; p value > 0.05 NS; *p value < 0.05 S
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