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Table 2 Outcome variables

From: Hematocrit of 20% versus 25% during normothermic cardiopulmonary bypass for elective coronary artery bypass graft surgery

 

Hematocrit 25%

Hematocrit 20%

 
 

Median

IQR

Median

IQR

P

Hematocrit on admission to ICU (%)

25.8

24.0–26.9

23.5

20.8–25.3

0.04

DO2 on admission to ICU (ml/m2/min)

819

675–1089

787

665–948

0.43

VO2 on admission to ICU (ml/m2/min)

227

190–289

211

185–263

0.78

DO2 18 hours after admission to ICU (ml/m2/min)

991

743–1299

910

807–1032

0.66

VO2 18 hours after admission to ICU (ml/m2/min)

327

269–399

285

265–347

0.16

Blood lactate on admission to ICU (mmol/l)

1.4

1.1–2.1

1.4

1.1–2.0

0.95

Blood lactate 18 hours after admission to ICU (mmol/l)

1.4

1.1–2.1

1.8

1.2–2.2

0.69

Drainage loss (ml)

390

280–470

400

270–580

0.88

Transfused patients (n)

0

0%

2

9%

0.51

Agitated arousal reaction (n)

3

13%

3

14%

0.59

Myocardial infarction (n)

0

0%

0

0%

0.99

CK/CK-MB

0.05

0.04–0.07

0.05

0.04–0.08

0.99

Ventilator support (hours)

10

7–13

10

9–12

0.74

Creatinine 18 hours after admission to ICU (mg/dl)

0.86

0.80–1.08

1.02

0.82–1.13

0.65

Patients with acute renal failure (n)

1

4%

1

5%

0.73

ICU stay (hours)

23

22–25

23

21–35

0.87

Mortality (n)

0

0%

1

5%

0.47