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Table 2 Postoperative outcomes dependent on the height of troponin elevation

From: Postoperative visits by dedicated anesthesiologists in patients with elevated troponin: a retrospective cohort study evaluating postoperative care utility and early detection of complications

 

TnI 18–119 ng L−1

TnI 120–599 ng L−1

TnI ≥ 600 ng L−1

N

543

192

76

Complications ≤ 7 days

Total

By POAc

Total

By POAc

Total

By POAc

 Myocardial infarction (%)

1 (0.2)

1 (0.2)

8 (4.2)

2 (1.0)

23 (30.3)

16 (21.1)

 Arrhythmia (%)

46 (8.5)

3 (0.6)

22 (11.5)

0 (0.0)

9 (11.8)

3 (3.9)

 CPR (%)

0 (0.0)

0 (0.0)

2 (1.0)

0 (0.0)

2 (2.6)

0 (0.0)

 Cerebrovascular accident (%)

9 (1.7)

0 (0.0)

2 (1.0)

0 (0.0)

3 (3.9)

0 (0.0)

 Deep venous thrombosis (%)

4 (0.7)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

 Pulmonary embolism (%)

10 (1.8)

0 (0.0)

5 (2.6)

0 (0.0)

3 (3.9)

1 (1.3)

 Sepsis (%)

20 (3.7)

0 (0.0)

8 (4.2)

1 (0.5)

5 (6.6)

1 (1.3)

 Pneumonia (%)

61 (11.2)

6 (1.1)

31 (16.1)

0 (0.0)

15 (19.7)

2 (2.6)

 Respiratory failure (%)

33 (6.1)

1 (0.2)

25 (13.0)

6 (3.1)

14 (18.4)

1 (1.3)

 Acute kidney injurya (%)

59 (15.1)

1 (0.0)

33 (21.7)

0 (0.0)

14 (22.2)

4 (14.8)

 Anemiab (%)

198 (36.5)

6 (6.6)

87 (45.3)

28 (14.6)

42 (55.3)

14 (18.4)

Clavien-Dindo Classification (%)

 Grade 1

73 (13.4)

16 (8.3)

5 (6.6)

 Grade 2

206 (37.9)

67 (34.9)

25 (32.9)

 Grade 3a

11 (2.0)

10 (5.2)

1 (1.3)

 Grade 3b

26 (4.8)

9 (4.7)

2 (2.6)

 Grade 4a

74 (13.6)

47 (24.5)

27 (35.5)

 Grade 4b

19 (3.5)

7 (3.6)

8 (10.5)

 Grade 5

5 (0.9)

4 (2.1)

1 (1.3)

 No complications

129 (23.8)

32 (16.7)

7 (9.2)

Unexpected ICU admission (%)

21 (3.9)

13 (6.8)

11 (14.5)

Unexpected MCU admission (%)

91 (16.8)

5 (28.6)

33 (43.4)

Reoperation (%)

50 (9.2)

19 (9.9)

8 (10.5)

Length of stay (median [IQR])

7 [4–15]

9 [5–16]

11 [6–16]

Mortality within 1 week (%)

5 (0.9)

4 (2.1)

1 (1.3)

  1. Troponin thresholds were chosen based on the thresholds as defined in the local protocol of the University Medical Center Utrecht (TnI 18–119 ng L−1, TnI 120–599 ng L−1, and TnI ≥ 600 ng L−1)
  2. CPR cardiopulmonary resuscitation, ICU intensive care unit, IQR interquartile range, MCU medium care unit, NA not applicable, TnI troponin I
  3. aAcute kidney injury (AKI) was calculated based on the KDIGO criteria. (1) AKI was based on 607 patients as no pre- and/or postoperative creatinine was available in 204 patients (25%)
  4. bAnemia was defined as a hemoglobin < 6.0 mmol L−1 (10 g dL−1), which is based on 708 patients as hemoglobin was not measured in 103 patients (13%)
  5. cEarly detection of complication (within 3 days) through contribution of the dedicated team of anesthesiologist (POA: perioperative anesthesiologist)