Mean warm ischemic time: 274.69 ± 87.00 seconds (150 - 540): The first group (the initial 30 cases): 309.17 ± 108.20 seconds; The second group (from 31to 60): 262.57 ± 71.54 seconds; The third group (from 61 to 90): 263.57 ± 80.81 seconds; The last one (from 91): 248.43 ± 39.32 seconds.