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Table 3 Comparison of survival and non-survival amongst cases and controls: demographics and perioperative characteristics

From: Outcomes of post-cardiac surgery patients with persistent hyperlactatemia in the intensive care unit: a matched cohort study

 

Non-survivors (n = 19)

Survivors (n = 405)

p-value

Preoperative characteristics

   

 Gender (male)

11 (57.9 %)

263 (64.9 %)

0.62

 Age (years)

75 (56–87)

70 (42–89)

0.05

 Parsonnet score

30.5 (16.5–49)

16.5 (0–52.5)

<0.0001

 Congestive heart failure

12 (63.2 %)

170 (41.9 %)

0.06

 Renal failurea

9 (47.4 %)

42 (10.4 %)

<0.0001

 Severe peripheral vascular disease

5 (26.3 %)

25 (6.2 %)

0.007

 Reoperation

3 (15.8 %)

8 (2 %)

0.005

 Chronic obstructive pulmonary diseaseb

7 (36.8 %)

51 (12.6 %)

.008

Postoperative characteristics

   

 Peak arterial lactate ≥3.0 mmol/L

15 (78.9 %)

129 (31.8 %)

<0.0001

 Peak creatinine μmol/L

127 (66–840)

100 (39–1013)

<0.0001

 Intra-aortic balloon pump

6 (31.6 %)

37 (9.2 %)

0.008

 CT chest /abdomen

2 (10.5 %)

2 (0.5 %)

0.01

 Return to OR

5 (26.3 %)

22 (5.4 %)

0.005

 Cardiogenic shock

5 (26.3 %)

6 (1.5 %)

<0.0001

 Post-operative cardiac hemorrhage

2 (10.5 %)

11 (2.7 %)

0.01

 Acute kidney injury (AKIN 1)

16 (84.2 %)

125 (32.2 %)

<0.0001

 Non-obstructive ileus

1 (5.5 %)

2 (0.5 %)

0.13

 Ischemic bowel

1 (5.5 %)

0

0.05

  1. Data is expressed as: number of patients (frequency in percentage) or median (range)
  2. aAcute or chronic renal failure
  3. bCOPD on medical treatment