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Table 2 Postoperative complications

From: Combined impact of elevated arterial stiffness and left ventricular filling pressure on outcomes after off-pump coronary artery bypass grafting

 

After IPTW adjustment

Referencea

High-PWV -only

High-E/e′ -only

High-PWV -and-E/e′

P

N

89

28

29

18

 

AKI, n (%) or %

5.4

19.8

7.1

52.9

 < 0.001c,e

Stroke/delirium, n (%) or %

12.9

15.9

5.8

24.0

0.319

Atrial fibrillation, n (%) or %

23.1

7.8

27.9

68.6

 < 0.001c,d,e

Graft patency, PA/DA (%) or %

97.7

94.7

96.6

98.1

0.745

Perioperative MI, n (%) or %

10.4

16.8

3.3

0.0

0.158

IABP support, n (%) or %

0.8

0.0

15.7

0.0

0.001b

ECMO support, n

0

0

0

0

Pneumonia, n (%) or %

4.4

4.3

13.3

9.5

0.343

Peak troponin-I, ng/mL

2.5 (1.0–5.2)

2.2 (1.3–5.4)

1.3 (0.6–2.6)

3.4 (1.1–5.7)

0.373

Ventilator support, hrs

17.7 (14.0–21.0)

18.5 (15.0–23.7)

18.9 (15.0–23.7)

22.0 (19.0–25.6)

0.533

ICU stay, hrs

46.0 (28.0–69.5)

46.0 (26.0–91.0)

45.0 (26.0–91.0)

46.0 (37.0–67.0)

0.807

Hospital stay, days

9.0 (8.0–12.0)

9.0 (8.0–12.0)

9.0 (8.0–12.0)

9.0 (9.0–26.0)

0.079

30-day mortality, n

0

0

0

0

  1. AKI acute kidney injury; DA total number of distal anastomoses; E early diastolic mitral inflow velocity; e′ early diastolic mitral annular tissue velocity; ECMO extracorporeal membrane oxygenator; IABP intraaortic balloon pump; ICU intensive care unit; IPTW inverse probability of treatment weighting; MI myocardial infarction; PA total number of patent anastomoses; PWV pulse wave velocity
  2. aReference: neither high PWV nor high E/e′
  3. Post-hoc tests were performed between the following groups: bHigh-E/e'-only vs. Reference; cHigh-PWV-and-E/e' vs. Reference; dHigh-PWV-and-E/e' vs. High-PWV-only; eHigh-PWV-and-E/e' vs. High-E/e'-only; fHigh-PWV-only vs. Reference; gHigh-E/e'-only vs. High-PWV-only