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Table 4 Perioperative hypoxemia associations

From: Perioperative hypoxemia is common with horizontal positioning during general anesthesia and is associated with major adverse outcomes: a retrospective study of consecutive patients

 

No hypoxia

Hypoxia

P-value

Number

350 (70.0%)

150 (30.0%)

 

Fluid input (−) output

1.3 ± 1.0

1.5 ± 1.2

0.0475

Fluid input (mL per hour)

938 ± 470

870 ± 498

0.1483

OR minutes

119 ± 70

152 ± 88

< 0.0001

ASA level

2.7 ± 0.7

3.0 ± 0.5

< 0.0001

Age

52.2 ± 17

59.0 ± 17

< 0.0001

Pre-existing lung disease

12.0%

18.0%

0.0747

Weight (kg)

84 ± 23

92 ± 27

0.0024

BMI

29.5 ± 7.6

32.0 ± 8.4

0.0012

Glycopyrrolate

27.1%

16.0%

0.0082

Acute Trauma

6.0%

10.7%

0.0677

Increased IAP

9.7%

19.3%

0.0030

Decubitus position

6.0%

11.3%

0.0392

Cranial procedure

2.3%

7.3%

0.0068

Not extubated in OR

0.6%

11.3%

< 0.0001

  1. OR: operating room; ASA: American Society of Anesthesiologists; BMI: body mass index; IAP: intra-abdominal pressure.
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BMC Anesthesiology

ISSN: 1471-2253

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