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Table 3 Postoperative cardiac troponin I in patients undergoing coronary artery bypass graft, valve surgery, or combined cardiac surgery

From: Determination of the threshold of cardiac troponin I associated with an adverse postoperative outcome after cardiac surgery: a comparative study between coronary artery bypass graft, valve surgery, and combined cardiac surgery

 

Coronary artery bypass graft

Valve surgery

Combined surgery

All patients

   

   n

215

215

216

   Cardiac troponin I (ng/ml)

5.2 (4.7–5.7)

7.8 (7.6–8.0)*

11.0 (9.5–13.1)*

   Elevated cardiac troponin Ia

49 (27)

77 (36)*

101 (47)*

Patients without severe cardiac event or death

   n

183

168

142

   Cardiac troponin I (ng/ml)

5.1 (4.1–5.2)

7.8 (7.3–7.8)*

9.1 (8.0–10.1)*

   Elevated cardiac troponin Ia

37 (20)

48 (29)

47 (33)*

Patients with severe cardiac event or death

   n

32

47

74

   Cardiac troponin I (ng/ml)

13.7 (6.8–30.4)

14.1 (8.1–17.8)

16.5 (14.7–19.2)*

   Elevated cardiac troponin Ia

22 (69)

29 (62)

54 (73)*

  1. Data expressed as the median (95% confidence interval) or the number (%).* P < 0.05 versus coronary artery bypass graft; P < 0.05 versus valve surgery. aAbove the threshold in each group as indicated in Table 4.