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Table 3 Intraoperative variables

From: Aortic arch cannulation with the guidance of transesophageal echocardiography for Stanford type A aortic dissection

Variables Group A(n = 33) Group F(n = 29) Total(n = 62) P value
Operation time(h) 7.33 ± 1.14 8.93 ± 2.59 8.08 ± 2.10 0.002
CPB time(min) 260.97 ± 45.14 298.28 ± 95.89 278.42 ± 75.11 0.024
Cross time(min) 170.67 ± 41.72 193.55 ± 57.97 181.37 ± 50.87 0.089
The lowest temperature during CPB(°C)
 Nasopharyngeal temperature 25.49 ± 2.07 26.05 ± 2.78 25.75 ± 2.42 0.259
 Anal temperature 27.14 ± 1.73 27.36 ± 2.64 27.24 ± 2.18 0.114
MHCA time(min) 40.97 ± 7.98 37.00 ± 9.39 39.28 ± 8.75 0.287
Absence of circulatory arrest 2(6.06%) 6(20.69%) 8(12.90%) 0.131
Hct after CPB (%) 27.92 ± 4.14 26.62 ± 4.95 27.31 ± 4.55 0.463
Maximum internal time of twice myocardial perfusion during CPB(min) 71.70 ± 14.80 69.71 ± 24.69 70.77 ± 19.90 0.001
Minimun hemoglobin concentration during operation(g/L) 77.23 ± 15.48 74.35 ± 10.18 75.88 ± 13.24 0.849
Maximum serum lactic acid concentration during operation(mol/L) 9.06 ± 4.70 10.34 ± 6.27 9.66 ± 5.48 0.192
  1. CPB cardiopulmonary bypass, MHCA moderate hypothermic circulatory arrest