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Table 1 Demographic characteristics of patients at baseline

From: Intraoperative blood transfusion volume is an independent risk factor for postoperative acute kidney injury in type A acute aortic dissection

Characteristics All patients (n = 130)
Age (years), mean (SD) 54.74 (11.84)
Gender, n (%)
 Male 101 (77.69)
 Female 29 (22.31)
Hypertension, n (%) 81 (62.31)
Diabetes mellitus, n (%) 8 (6.15)
COPD, n (%) 6 (4.62)
Stroke, n (%) 8 (6.15)
Coronary artery disease, n (%) 7 (5.38)
SBP (mmHg), mean (SD) 133.63 (28.41)
DBP (mmHg), mean (SD) 72.92 (19.31)
eGFR [ml/(min.1.73m2)], mean (SD) 91.86 (40.27)
Preoperative hemoglobin (g/l), mean (SD) 122.96 (21.58)
Emergency operation, n (%) 88 (67.69)
CPB time (min), median (IQR) 193 (154–233)
Aortic cross clamp time (min), median (IQR) 101 (81–124)
Circulatory arrest time (min), median (IQR) 16 (0–24)
Total arch replacement, n (%) 76 (58.46)
Semi-arch replacement, n (%) 3 (2.31)
Stented elephant trunk, n (%) 72 (55.38)
Bentall procedure, n (%) 55 (42.31)
Ascending aorta replacement, n (%) 73 (56.15)
David procedure, n (%) 2 (1.54)
Intraoperative erythrocytes use (ml), median (IQR) 2300 (1300–3675)
Intraoperative fresh frozen plasma use (ml), median (IQR) 900 (550–1775)
Intraoperative platelets use (ml), median (IQR) 1200 (600–1200)
Intraoperative cryoprecipitate use (ml), median (IQR) 500 (213–519)
Intraoperative blood transfusion (ml), median (IQR) 4975 (2756–6819)
Postoperative AKI, n (%) 82 (63.08)
Length of ICU (day) 5.0 (3.0–10.0)
Length of mechanical ventilation (day) 2.5 (1.0–6.0)
In-hospital mortality, n (%) 21 (16.15)
  1. AKI, acute kidney injury; COPD, chronic obstructive pulmonary; CPB, cardiopulmonary bypass; DBP, diastolic blood pressure; eGFR, estimated glomerular filtration rate; ICU, intensive care unit; SD, standard deviation; SBP, systolic blood pressure