Characteristic
Total
(n = 261)
Total Arch
(n = 112)
Hemiarch
(n = 149)
p value
Reoperative sternotomy
81 (31.0)
40 (35.7)
41 (27.5)
0.157
Emergent/urgent operation
205 (78.5)
76 (67.9)
129 (86.6)
<0.0001
Proximal aortic repair
0.304
Isolated ascending
90 (34.5)
44 (39.3)
46 (30.9)
Aortic valve replacement
96 (36.8)
42 (37.5)
54 (36.2)
Aortic root replacement
68 (26.1)
23 (20.5)
45 (30.2)
Valve sparing root replacement
7 (2.7)
3 (2.7)
4 (2.7)
Concomitant CABG
37 (14.2)
15 (13.4)
22 (14.8)
0.753
Femoral artery
26 (10.0%)
13 (11.6%)
13 (8.7%)
Deep hypothermic circulatory arrest (Y/N)
50 (19.22%)
20 (17.9%)
30 (20.1%)
0.644
Operative times (min)
CPB time (min)
184 (145, 233)
213.5 (167, 282)
166 (140, 215)
<0.0001
Aortic Cross-clamp time (min)
93.5 (67, 146)
110 (75, 170)
87 (61,
141)
0.0019
Antegrade cerebral perfusion time (min)
23 (17, 32)
30 (22, 46)
19
(14.5, 27)
<0.0001
Deep hypothermic circulatory arrest (min)
11 (3, 19)
15.5 (6.5,
21.5)
9 (3, 15)
0.1088
Lowest core temperature (C)
26 (24, 28.4)
25 (23, 27.3)
27 (24.8,
28.7)
0.001
Era of operation
0.018
2004 – 2012
82 (31.4%)
44 (39.3%)
38 (25.5%)
2013 – 2017
179 (68.6%)
68 (60.7%)
111 (74.5%)
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