Overall (n=56) N (%) Group I (n=25) N (%) Group II (n=31) N (%)
p
Arterial cannulation
Right axillary artery 33(58.9) 20(80) 13(41.9) 0.006
Innominate artery 19(33.9) 4(16) 15(48) 0.013
Right carotid artery 2(3.6) 0(0) 2(6.5) 0.29
Left carotid artery 2(3.6) 1(4) 1(3.2) 0.87
Graft interposition 39(69.9) 9(36) 30(96.8) <0.001
Body temperature (mean±SD) 23.8±3.4 22±3.6 25±2.8 <0.001
Myocardial protection
Blood cardioplegia 16(28.6) 15(60) 1(3.2) <0.001
Crystaloid cardioplegia 40(71.4) 10(40) 30(96.8) <0.001
Brain protection
Unilateral antegrade perfusion 9(16.1) 9(36) 0(0) <0.001
Bilateral antegrade perfusion 47(83.9) 16(64) 31(100) <0.001
LSA perfusión during visceral ischemia 27(48.2) 0(0) 27(87.1) <0.001
Early reperfusion 37(66.1) 10(40) 30(96.8) <0.001
Level of distal anastomosis
Z3 7(12.5) 7(28) 0(0) 0.02
<Z3 49(87.5) 18(72) 31(100) 0.02
Head vessels reimplantation
En-block 9(16.1) 9(36) 0(0) <0.001
En block (IA+LCA) + LSA bypass 32(57.1) 11(44) 21(67.7) 0.07
Self-made trifurcated graft 15(26.8) 5(20) 10(32.3) 0.3
Aortic root
Bentall-De Bono operation 9(16.1) 2(8) 7(22.6) 0.14
David operation 3(5.4) 2(8) 1(3.2) 0.43
Partial repair 13(23.3) 3(12) 10(32.2) 0.01
Evita-open size (mean±SD)
Diameter (mm) 29±4.7 29±4.1 29.15.4 0.
Length(mm) 142±12 150±8.6 135.5±11.5 <0.001
Concomitant procedures
Mitral valve repair 1(1.8%) 0(0) 1(3.2) 0.36
CABG 8(14.3) 5(20) 3(9.7) 0.39
Operative times (minutes, mean±SD)
CPB 183±49.6 182±48 184±51 0.38
Cardioplegic arrest 109.4±40.4 107±42 110±39 0.26
Selective cerebral perfusion 75.5±28.1 75±32 75±25 0.48
Lower body circulatory arrest 42.7±18.4 54±20 33±10 <0.001