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Table 2 Patients' intra and postoperative characteristics

From: Prognostic factors of atrial fibrillation following elective coronary artery bypass grafting: the impact of quantified intraoperative myocardial ischemia

Characteristic Number of patients Percentage
CPB-time: 98 ± 13 min (43-158)   
CPB-time < 60 35 10%
CPB-time 60-120 min 237 68.10%
CPB-time > 120 min 76 21.90%
Ischemia time: 47 ± 16 min (16-79)   
Myocardial Ischemia Index (M.I.I): 0.1- 1.0 ml.m 2 /Kg.min   
av.MII ante ≥ 0.5 ml.m2/Kg.min 104 29.90%
av.MII ante 0.28 - < 0.49 ml.m2/Kg.min 176 50.60%
av.MII ante ≤ 0.27 ml.m2/Kg.min 68 19.50%
Bypasses performed   
CABG-1 24 6.90%
CABG-2 102 29.30%
CABG-3 210 60.40%
CABG-4 12 3.40%
LIMA use 312 89.70%
Positive fluid balance 207 59.50%
Potassium Deficit 276 79.30%
FiO 2 /PO 2   
≤ 40 302 86.80%
> 40 46 13.20%
Inotropic support   
Absent 235 67.50%
3-15 μg/kg/min 62 17.80%
> 15 μg/kg/min 51 14.70%
Perioperative myocardial infarction 19 5.50%
ICU-recovery   
≤ 48 hours 279 80.20%
> 48 hours 69 19.80%
  1. CPB: Cardiopulmonary Bypass, M.I.I: Myocardial Ischemia Index, CABG: Coronary Artery Bypass Grafting, LIMA: left internal thoracic (mammary) artery, FiO2: fraction of delivered O2, PO2: arterial partial pressure of O2, ICU: Intensive Care Unit