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Table 2 Perioperative and outcome data

From: Comparing perioperative magnesium sulphate, lidocaine, and their combination in preventing ventricular arrhythmia in off-pump coronary artery bypass grafting

Variable Mg group Lidocaine group Combination group Test P value
Number of vessels 1.37 ± 0.49 1.30 ± 0.46 1.27 ± 0.45 0.35 0.70 (ns)
Ejection fraction,% 41.87 ± 1.87 40.96 ± 2.35 40.67 ± 3.42 1.68 0.19 (ns)
Intraoperative heart rate, beat/min 76.23 ± 6.11 80.57 ± 5.03 75.26 ± 3.13 9.88 < 0.001*
Intraoperative mean arterial pressure, mmHg 77.0 ± 7.41 76.83 ± 5.31 81.70 ± 3.60 7.13 0.001*
Intraoperative PH 7.37 ± 0.07 7.36 ± 0.06 7.36 ± 0.06 0.043 0.958 (ns)
Intraoperative Na+ 136.59 ± 6.3 135.81 ± 6.3 136.56 ± 5.6 0.138 0.871 (ns)
Intraoperative K+ 3.8 ± 0.50 3.6 ± 0.63 3.7 ± 0.58 0.661 0.519 (ns)
Intraoperative Ca++ 8.51 ± 0.44 8.2 ± 0.61 8.2 ± 0.62 1.928 0.152 (ns)
ST elevation, number of patients 5 (16.7%) 5 (16.7%) 3 (10.0%) 0.71 0.69 (ns)
Intraoperative inotropic agents, number of patients 3 (10.0%) 4 (13.3%) 3 (10.0%) 0.22 0.89 (ns)
Intraoperative β-blockers, number of patients 3 (10.0%) 8 (26.7%) 0 (0.0%) 10.15 0.006*
Perioperative aortic balloon pump, number of patients 2 (6.7%) 6 (20.0%) 0 (0.0%) 7.68 0.021*
Perioperative ventricular tachycardia, number of patients 1 (3.3%) 5 (16.7%) 0 (0.0%) 7.50 0.024*
Intraoperative defibrillation, number of patients 0 (0.0%) 2 (6.7%) 0 (0.0%) 4.09 0.12 (ns)
Intraoperative blood transfusion units, number of patients 2.53 ± 0.51 2.54 ± 0.50 2.60 ± 0.62 0.15 0.86 (ns)
Duration of intubation (h) 16.40 ± 0.89 16.83 ± 1.59 16.13 ± 1.57 1.93 0.15 (ns)
ICU stay (h) 50.67 ± 2.69 49.47 ± 2.97 48.33 ± 2.31 2.26 0.11 (ns)
Duration of hospital stay (day) 7.30 ± 0.65 7.10 ± 0.67 7.13 ± 0.82 0.67 0.51 (ns)
  1. Data presented as mean ± SD, or number (%). *Statistically significant at P < 0.05. ns not significant (P > 0.05)
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