Table 2
Subgroup analysis: Patient demographics for aortic cross-clamp time greater than 120 min.
Characteristic | HKB | DNC | p-value |
---|---|---|---|
N | 64 | 64 | |
Age | 57 (45, 72) | 62 (45, 69) | 0.83 |
Male | 40 (63%) | 46 (72%) | 0.26 |
Euroscore II | 2 (1, 5) | 2 (1, 5) | 0.92 |
BMI | 27 (24, 30) | 28 (24, 33) | 0.40 |
Diabetic | 11 (17%) | 11 (17%) | 1.00 |
Insulin dependent | 5 (8%) | 2 (3%) | 0.44 |
Baseline creatinine (umol/L) | 85 (69, 104) | 85 (71, 104) | 0.75 |
Dialysis dependent | 1 (2%) | 1 (2%) | 1.00 |
Pulmonary hypertension | 10 (16%) | 9 (14%) | 1.00 |
COPD | 19 (30%) | 19 (30%) | 1.00 |
Smoking history | 33 (52%) | 34 (53%) | 0.86 |
PVD | 2 (3%) | 0 (0%) | 0.50 |
Cerebrovascular disease | 7 (11%) | 8 (13%) | 1.00 |
Redo sternotomy | 10 (16%) | 10 (16%) | 1.00 |
NYHA class | |||
1 | 26 (41%) | 20 (31%) | 0.27 |
2 | 18 (28%) | 27 (42%) | |
3 | 15 (23%) | 10 (16%) | |
4 | 5 (8%) | 7 (11%) | |
LVEF | |||
Normal | 41 (64%) | 36 (56%) | 0.83 |
Mild dysfunction | 15 (23%) | 19 (30%) | |
Moderate dysfunction | 6 (9%) | 7 (11%) | |
Severe dysfunction | 2 (3%) | 2 (3%) | |
Baseline troponin T (ng/L) | 17 (27%) | 18 (28%) | 0.84 |
Continuous variables are expressed median (IQR), categorical variables are expressed number (%). Abbreviation: HKB – hyperkalaemic blood cardioplegia; DNC – Del Nido cardioplegia; BMI – body mass index; COPD – chronic obstructive pulmonary disease; PVD – peripheral vascular disease; NYHA – New York Heart Association; LVEF – left ventricular ejection fraction.
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