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Table 1 Preoperative, perioperative and postoperative patient characteristics ( N = 984) a

From: Albumin administration is associated with acute kidney injury in cardiac surgery: a propensity score analysis

Preoperative characteristics

 

Perioperative and postoperative characteristics

 

Age (yr)

66 ± 10

Use of intra-aortic balloon (%)

6.3

Female (%)

25

Heart valve surgery (%)

23

Caucasian (%)

94

CABG (%)

93

Active smoking status (%)

27

Duration of ECC (hr) (IQR)

1.1 (0.9 to 1.5)

Initial GFR (ml/min/1.73 m2)

72 ± 19

Urgent surgery (%)

14

Comorbidities

 

Reintervention (%)

4

  Hypertension (%)

72

Postoperative cardiovascular SOFA score ≤2, >2 (%)

51, 49

  Diabetes (%)

31

Perioperative transfusions

 

  Hyperlipidemia (%)

69

  Red blood cells (0, 1, 2, ≥3 U) (%)

45, 15, 14, 22

 Peripheral vascular disease (%)

8

  Platelets (0, ≤10, >10 U) (%)

80, 17, 3

  Stroke (%)

7

  Fresh frozen plasma (0, ≤5, >5 U) (%)

80, 16, 4

  MI within the past 7 days (%)

13

  

LVEF ≤35%, 36% to 49%, ≥50% (%)

9, 14, 77

AKI (%)

 

Drugs used within 5 days prior to surgery

 

  AKIN stage 1

12.0

  Diuretics (%)

34

  RIFLE risk

5.3

  RASB (%)

59

  RIFLE injury

1.9

  NSAIDs (%)

9

  RIFLE failure

0.7

Contrast agent for angiography (%)

26

  

Preoperative hemoglobin (g/L)

130 ± 17

  
  1. aResults are expressed as mean ± standard deviation, median (interquartile range (IQR)) or percentage as appropriate. AKI, acute kidney injury; AKIN, Acute Kidney Injury Network; CABG, Coronary artery bypass graft; ECC, Extracorporeal circulation; GFR, Glomerular filtration rate; LVEF, Left ventricular ejection fraction; MI, Myocardial infarction; NSAIDs, Nonsteroidal anti-inflammatory drugs; RASB, Renin angiotensin blockade; RIFLE, Risk, injury, failure, loss and end-stage kidney disease; SOFA, Sequential Organ Failure Assessment.