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Table 1 Clinical characteristics and perioperative data for the landiolol and control groups

From: Postoperative atrial fibrillation in patients undergoing coronary artery bypass grafting or cardiac valve surgery: intraoperative use of landiolol

 

Control

Landiolol

P value

(n=48)

(n=57)

Age (yr)

65.7 ± 12.6

67.2 ± 11.5

NS

NYHA class

1.9 ± 0.7

1.9 ± 0.7

NS

BMI

23.0 ± 4.1

23.0 ± 3.4

NS

Hypertension

38 (79.2)

47 (82.4)

NS

Diabetes

14 (29.2)

18 (31.6)

NS

Hyperlipidemia

18 (37.5)

25 (43.9)

NS

Previous CHF

22 (45.8)

23 (40.4)

NS

Previous MI

7 (14.6)

12 (21.1)

NS

Previous AF

8 (16.7)

10 (17.5)

NS

LV Ejection fraction (%)

60.5 ± 14.7

56.4 ± 15.2

NS

Preoperative ACE inhibitor use

38 (79.2)

37 (64.9)

NS

Preoperative β-blocker use

24 (50.0)

29 (50.9)

NS

Postoperative β-blocker use

16 (33.3)

41 (71.9)

<0.0001

Preoperative Cr (mg/dL)

1.1 ± 1.8

1.3 ± 1.6

NS

Preoperative % VC

95 ± 21

94 ± 19

NS

Preoperative FEV 1.0%

82 ± 15

82 ± 14

NS

On-pump CABG

5 (10.4)

9 (15.8)

NS

Off-pump CABG

14 (29.2)

27 (47.4)

NS

Valve surgery

   

  AVR

16 (33.3)

12 (21.1)

NS

  MVR

3 (6.3)

2 (3,5)

NS

  MVP

9 (18.8)

6 (10.5)

NS

  TVP

1 (2.1)

1 (1.8)

NS

Operating time (min)

344 ± 78

334 ± 86

NS

Blood loss (mL)

1159 ± 1036

1197 ± 1246

NS

Fluid and blood infusion volume (mL)

5471 ± 1657

5405 ± 1948

NS

Urine volume (mL)

1283 ± 933

1270 ± 948

NS

No. of patients receiving intraoperative remifentanil

32 (66.7)

39 (68.4)

NS

Intraoperative remifentanil dose (μg/kg/min)

0.18 ± 0.06

0.21 ± 0.07

NS

Postoperative AF

12 (25.0)

5 (8.8)

0.02

  Time of onset of new AF (d)

2.2 ± 1.0

3.0 ± 1.2

NS

Length of ICU stay (d)

3.5 ± 2.0

3.0 ± 2.1

NS

Time to extubation (hr)

20.9 ± 41.6

16.0 ± 29.1

NS

Postoperative complications

   

  Pulmonary edema

6 (12.5)

7 (12.3)

NS

  Stroke

1 ((2.1)

0

NS

  Seizures

1 (2.1)

1 (1.8)

NS

  Renal failure

0

1 (1.8)

NS

  1. Values are shown as numbers (%) or as the mean ± SD. The unpaired t-test was used for comparison of between-group differences in means. Fisher’s exact test was used for comparison of between-group differences in categorical data. NYHA: New York Heart Association, CHF: congestive heart failure, MI: myocardial infarction, LV: left ventricular, ACE: angiotensin-converting enzyme, Cr: creatinine, AF: atrial fibrillation, ICU: intensive care unit.