Page 39 - ANZCP Gazette APRIL 2022

4 Perfusion 00(0) Table 1. Preoperative demographics and perioperative data for patients accepting or refusing blood product transfusion.
N Preoperative
Age, years
Female
Body mass index
Chronic obstructive pulmonary disease Redo procedure
Diabetes
Hypertension
Congestive heart failure
Severe left ventricular dysfunction Emergency procedure Cerebrovascular disease
Previous myocardial infarction Preoperative haemoglobin, g/L Preoperative creatinine, mmol/L Euroscore
Intraoperative Procedure
Coronary bypass graft Mitral valve replacement Aortic valve replacement Other
Aortic valve replacement+coronary graft
Mitral valve replacement+coronary graft Circuit priming volume (mL)
Cell salvage utilisation
Retrograde autologous priming
Retrograde autologous priming volume, mL Haemofiltration
Tranexamic acid
Cardiopulmonary bypass time, minutes
Min nasopharyngeal temperature, °C Mean arterial pressure, mmHg Cardiac index, mL/min/m2
Min haemoglobin, g/L
Min oxygen delivery, mL/min/m2 Max lactate, μmol/L
Any blood product transfusion Red blood cell transfusion
Year of operation 2007-2012 2013-2018
Hospital 1
2 3 4 5 6 7 8
Accept transfusion 118
68 (60, 76) 42%
29 (25, 33) 14%
6% 36% 75% 20% 3% 3% 8% 25%
132 (120, 145) 86 (70, 102) 3.4 (1.7, 6.4)
47% 7% 18% 14% 11% 3%
1,350 (1,100, 1,612) 22%
35%
400 (300, 550) 4%
81%
80 (61, 104)
33.7 (32, 34.2) 62 (55, 66)
2.2 (1.95, 2.39) 85 (75, 95)
263 (224, 293) 1.55 (1.2, 2.3)
Refuse transfusion 118
68 (59, 75) 31%
29 (25, 32) 13%
8% 33% 73% 16% 4% 1% 8% 31%
135 (122, 146) 88 (74, 106) 3.3 (1.9, 5.5)
50% 7% 14% 14% 10% 4%
p
0.74 0.058 0.81 0.85 0.45 0.68 0.77 0.40 0.73 0.18 0.81 0.25 0.18 0.091 0.95
0.98
Min: minimum; Max: maximum.
Categorical data are represented as % and continuous data as median (interquartile range).
49% 0% 41% 0%
45% 45% 55% 55%
7% 6% 17% 17% 3% 4% 31% 28% 15% 18% 9% 10% 3% 3% 16% 14%
1.00 0.99
1,335 (1,060, 1,610)
70% <0.001 44% 0.36
400 (300, 620) 0.56 8% 0.031 94% 0.003
83 (66, 106) 0.89 33.5 (32.3, 34.3) 0.52 62 (56, 66) 0.78 2.2 (1.96, 2.39) 0.72 90 (79, 99) 0.79 271 (244, 304) 0.90 1.65 (1.3, 2.15) 0.52
0.37
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