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Table 5 Peripheral oxygen saturation after extubation

From: Effects of ultrasound-guided alveolar recruitment manoeuvres compared with sustained inflation or no recruitment manoeuvres on atelectasis in laparoscopic gynaecological surgery as assessed by ultrasonography: a randomized clinical trial

  C group
(n = 30)
SI group
(n = 30)
UD group
(n = 30)
χ2 P Value
SpO2 ≤ 90% 2 (6.70%) 0 (0.00%) 0 (0.00%) 36.47 0.00
90% < SpO2 < 95% 21 (70.00%) 3 (10.00%) 5 (16.70%)
SpO2 ≥ 95% 7 (23.300%) 27 (90.00%) 25 (83.30%)