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Table 1 Baseline demographic and surgical characteristics of the study population

From: Dexmedetomidine sedation reduces atrial fibrillation after cardiac surgery compared to propofol: a randomized controlled trial

Characteristics Propofol (n = 44) Dexmedetomidine (n = 44) P value
Age, years 56.5 (49.3–62.0) 53.0 (46.0–63.0) 0.314
Female gender 30 (68.2) 23 (52.3) 0.191
Body mass index, kg/m2 21.8 (20.0–25.1) 22.4 (20.8–24.6) 0.607
Hypertension 13 (29.5) 13 (29.5) >0.999
Diabetes 5 (11.4) 6 (13.6) >0.999
Smoking history 10 (22.7) 18 (40.9) 0.108
Chronic obstructive pulmonary disease 2 (4.5) 4 (9.1) 0.676
Left ventricular ejection fraction, % 65.0 (57.0–71.0) 65.0 (56.8–71.0) 0.975
New York Heart Association class    0.561
 I 2 (4.5) 2 (4.5)  
 II 28 (63.6) 29 (65.9)  
 III 12 (27.3) 13 (29.5)  
 IV 2 (4.5) 0 (0)  
Preoperative use of β-blockers 5 (11.4) 1 (2.3) 0.202
Preoperative use of digoxin 20 (45.5) 20 (45.5) >0.999
Type of operation    0.616
 Mitral valve surgery 8 (18.2) 11 (25.0)  
 Aortic valve surgery 15 (34.1) 15 (34.1)  
 Mitral + aortic valve surgery 13 (29.5) 8 (18.2)  
 CABG+ valve surgery 1 (2.3) 3 (6.8)  
 Other cardiac surgery 7 (15.9) 7 (15.9)  
Cardiopulmonary bypass time, minutes 68.8 (53.8–93.6) 73.5 (55.7–85.1) 0.635
Cross-clamp time, minutes 47.3 (36.6–67.1) 50.7 (34.2–62.4) 0.892
Defibrillation after reperfusion 14 (31.8) 18 (40.9) 0.507
Temporary pacemaker insertiona 7 (15.9) 6 (13.6) >0.999
  1. Data are presented as the median (interquartile range) or number (%). aVentricular pacing. CABG coronary artery bypass graft