Table 1: Patients’ demographic and operative data.

CriteriaICC-groupIWC-group value

Number ()3236
Age (years)65.9 ± 11.363.9 ± 7.70.392
Male gender (%)75810.486
Preoperative EF (%)62 ± 1956 ± 230.249
NYHA-class2.1 ± 0.62.2 ± 0.60.495
EuroSCORE3.7 ± 2.34.2 ± 2.40.385

CPB time (min)76.2 ± 16.468.7 ± 12.50.037
Cross clamp time (min)39.7 ± 11.742.6 ± 14.60.373
Procedure time (min)187.7 ± 39.2197.5 ± 42.70.330
Number of grafts3.1 ± 0.63.3 ± 0.60.175

Ventilation time (hours)17.4 ± 6.214.7 ± 8.50.144
ICU stay (hours)39.1 ± 17.652.3 ± 23.20.011
Atrial fibrillation (%)23.128.60.772
PMI00
MACE00
Mortality00

CPB: cardiopulmonary bypass; EF: ejection fraction; ICC: intermittent cold blood cardioplegia; ICU: intensive care unit; IWC: intermittent warm blood cardioplegia; MACE: major adverse cardiac event; NYHA: New York Heart Association; PMI: perioperative myocardial injury.