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Table 4 Intraoperative and postoperative variables

From: Lung ultrasound score to determine the effect of fraction inspired oxygen during alveolar recruitment on absorption atelectasis in laparoscopic surgery: a randomized controlled trial

 

Low-Fio2 group (n = 44)

High-Fio2 group (n = 46)

P-value

Hemodynamic variables during anesthesia

 Heart rate (beats min−1)

62.2 (57.0–67.4)

62.5 (57.8–70.3)

0.214

 Mean arterial pressure (mmHg)

88.8 (9.3)

87.8 (7.8)

0.586

 Cardiac index (L min−1 m−2)

2.5 (2.2–3.3)

2.5 (2.1–3.0)

0.457

 Stroke volume variation (%)

9.5 (3.9)

10.8 (3.6)

0.103

 Mean Spo2 (%)

99.9 (99.5–100.0)

99.8 (99.1–100.0)

0.154

 Lowest Spo2 (%)

99.0 (98.0–100.0)

98.0 (97.0–100.0)

0.119

 Intraoperative desaturation (Spo2 < 95%), n

3 (6.8%)

2 (4.3%)

0.959

Respiratory parameters during capnoperitoneum

 Minute ventilation (L min−1)

6.3 (0.9)

6.4 (1.0)

0.563

 Peak inspiratory pressure (cmH2O)

23.8 (3.6)

23.3 (3.1)

0.485

 Static compliance (ml cmH2O−1)

29.7 (7.8)

30.1 (7.3)

0.776

Postoperative outcome variables

 Fever within postoperative 24 h (> 38.0 °C), n

6 (13.6%)

10 (21.7%)

0.317

 Atelectasis on postoperative chest X-ray, n

4 (9.1%)

3 (6.5%)

0.710

 Length of hospital stay (day)

3.5 (2.0–5.0)

5.0 (2.0–6.0)

0.096

 In-hospital pulmonary complication, n

0 (0.0%)

0 (0.0%)

 
  1. Data are expressed as mean (standard deviation), median (interquartile range), or number (%)