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Table 3 Comparison of intraoperative hemodynamic and blood gas analysis data among the study groups

From: Intraoperative mild hyperoxia may be associated with improved survival after off-pump coronary artery bypass grafting: a retrospective observational study

 

Normoxia/near-normoxia (n = 229)

Mild hyperoxia (n = 991)

Severe hyperoxia (n = 173)

P

PaO2 (mmHg)

132 (121–141)

194 (175–214)

292 (262–358)

< 0.001

Haematocrit (%)

31 (29–34)

30 (28–32)

30 (28–33)

0.027

Cardiac output (L/min)a

3.7 (3.1–4.2)

3.6 (3.1–4.1)

3.4 (3.0–3.8)

< 0.001

Cardiac index (L/min/m2)a

2.1 (1.9–2.4)

2.1 (1.9–2.4)

2.0 (1.9–2.2)

< 0.001

SvO2 (%)b

67 (63–71)

70 (66–74)

72 (69–76)

< 0.001

  1. PaO2 Arterial oxygen partial pressure, SvO2 Mixed venous oxygen saturation
  2. aTwenty-six missing values
  3. b45 missing values