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Table 2 Intraoperative data

From: Effect of different types of cerebral perfusion for acute type A aortic dissection undergoing aortic arch procedure, unilateral versus bilateral

Variable u-ACP (n = 124) b-ACP (n = 197) p
CPB duration (min, \(\overline{x}\) ± s) 260.07 ± 76.79 235.79 ± 46.60 0.016
Aortic cross-clamping duration (min, \(\overline{x}\) ± s) 154.53 ± 36.50 154.94 ± 33.75 0.946
Circulatory arrest time (min, \(\overline{x}\) ± s) 26.60 ± 6.78 25.62 ± 6.31 0.384
Nasopharyngeal temperature (℃, \(\overline{x}\) ± s) 24.92 ± 0.28 27.09 ± 1.22 0.000
Concomitant procedures (n, %)
 Bentall 25 (20.2%) 47 (23.9%) 0.703
 CABG 9 (7.3%) 18 (9.1%)  
 Bentall + CABG 7 (5.6%) 13 (6.6%)  
Surgery time (n, %)
 Hyper-acute (< 24 h) 24 (19.4%) 35 (17.8%) 0.914
 Acute (24-72 h) 82 (66.1%) 131 (66.5%)  
 Subacute (> 72 h) 18 (14.5%) 31 (15.7%)  
  1. p < 0.05 is considered as statistically significant
  2. u-ACP unilateral antegrade cerebral perfusion, b-ACP bilateral antegrade cerebral perfusion, CPB cardiopulmonary bypass, CABG coronary artery bypass grafting