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Table 2 Surgical procedures and performance

From: A perioperative infusion of sodium bicarbonate does not improve renal function in cardiac surgery patients: a prospective observational cohort study

 

Total cohort

Control - no bicarbonate

Intervention - bicarbonate

Significance, P-value

Number

584

304 (52.1%)

280 (47.9%)

 

Type of procedure

    

CABG

222 (38.1)

110 (36.3%)

112 (40.0%)

0.160

Valve surgery +/- varia

176 (30.1%)

93 (30.7%)

82 (28.9%)

 

CABG +/- valve +/- varia

120 (20.6%)

71 (23.4%)

49 (17.5%)

 

Aortic surgery +/- valve +/- varia

54 (9.3%)

21 (6.9%)

33 (11.8%)

 

Various procedures

10 (1.7%)

8 (2.6%)

3 (1.1%)

 

Aortic surgery +/- CABG

2 (0.3%)

1 (0.3%)

1 (0.4%)

 

Duration of surgery, minutes

254 (247, 261)

249 (242, 260)

258 (250, 268)

0.406

Duration of CPB, minutes

115 (110, 119)

115 9 (107, 122)

115 (109, 120)

0.756

Crossclamp time, minutes

89.5 (84, 93)

88.5 (82, 93)

90 (83, 96)

0.539

ECLS

7 (1.2%)

3 (1.0%)

4 (1.4%)

0.913

IABP

    

   No IABP

556 (95.2%)

289 (95.1%)

267 (95.4%)

0.445

   IABP before CPB

6 (1.0%)

2 (0.7%)

4 (1.4%)

 

   IABP during CPB

8 (1.4%)

6 (2.0%)

2 (0.7%)

 

   IABP after CPB

8 (1.4%)

3 (1.0%)

5 (1.8%)

 

   IABP on ICU

6 (1.0%)

4 (1.3%)

2 (0.7%)

 

Circulatory arrest

21 (3.6%)

13 (4.3%)

8 (2.9%)

0.485

Lowest body temperature, °C

32 (32, 32)

32 (32, 32)

32 (32, 32)

0.615

  1. Surgical procedures and surgical core data are shown for patients undergoing elective on-pump cardiac surgery with or without a perioperative infusion of bicarbonate. CABG: coronary artery bypass grafting; CPB: cardiopulmonary bypass; ECLS: extracorporeal life support; IABP: intra-aortic balloon pump. Data are given as absolute numbers (percentage) for nominal variables and as median (95% confidence interval).