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Table 2 Operative details for the DAC and RAC groups

From: Double arterial cannulation versus right axillary artery cannulation for acute type A aortic dissection: a retrospective study

Variables DAC group (n = 341) RAC group (n = 90) P value Matched DAC group (n = 154) Matched RAC group (n = 77) P value
Site of tears    0.286    0.547
 Ascending aorta 191 (56.0%) 42 (46.7%)   79 (51.3%) 37 (48.1%)  
 Aortic arch 98 (28.7%) 28 (31.1%)   45 (29.2%) 21 (27.3%)  
 Descending aorta 22 (6.5%) 10 (11.1%)   11 (7.1%) 10 (13.0%)  
 Unseen 30 (8.8%) 10 (11.1%)   19 (12.3%) 9 (11.7%)  
Root Surgery    0.168    0.181
 Untreated 9 (2.6%) 1 (1.1%)   4 (2.6%) 0  
 Root reconstruction 237 (69.5%) 69 (76.7%)   102 (66.2%) 59 (76.6%)  
 Bentall 90 (26.4%) 16 (17.8%)   46 (29.9%) 16 (20.8%)  
 Wheat 1 (0.3%) 1 (1.1%)   0 0  
 David 4 (1.2%) 3 (3.3%)   2 (1.3%) 2 (2.6%)  
Arch Surgery    0.719    0.969
 Untreated 10 (2.9%) 3 (3.3%)   3 (1.9%) 1 (1.3%)  
 Hemi-arch 44 (12.9%) 9 (10.0%)   20 (13.0%) 9 (11.7%)  
 Total-arch 181 (53.1%) 45 (50.0%)   78 (50.6%) 39 (50.6%)  
 Arch stent 106 (31.1%) 33 (36.7%)   53 (34.4%) 28 (36.4%)  
 Descending stent 289 (84.8%) 79 (87.8%) 0.470 130 (84.4%) 67 (87.0%) 0.599
Perfusion Method    0.859    0.616
 Without perfusion 1 (0.3%) 0   0 0  
 ACP 336 (98.8%) 89 (98.9%)   153 (99.4%) 76 (98.7%)  
 RCP 3 (0.9%) 1 (1.1%)   1 (0.6%) 1 (1.3%)  
Operation time (h) 8.18 ± 1.93 8.52 ± 1.87 0.130 8.09 ± 1.96 8.50 ± 1.85 0.127
CPB (min) 251.92 ± 82.42 248.66 ± 1.87 0.734 241.68 ± 72.41 244.30 ± 70.50 0.795
Crossclamp time(min) 176.12 ± 57.10 168.93 ± 56.17 0.292 168.59 ± 55.19 166.71 ± 56.78 0.810
DHCA (min) 30.51 ± 11.19 28.21 ± 8.87 0.077 28.87 ± 9.93 28.09 ± 8.92 0.568
  1. ACP Anterograde cerebral perfusion; RCP retrograde cerebral perfusion; CPB cardiopulmonary bypass; DHCA deep hypothermic circulatory arrest