Table 1. Demographic and baseline characteristics of the study population.
Data are depicted as absolute numbers or mean±standard deviation. Abbreviations: APACHE, acute physiology and chronic health evaluation; CABG, coronary artery bypass grafting; COPD, chronic obstructive pulmonary disease; PRBCs, packed red blood cells.
| Parameter | Fresh PRBCs |
Standard-issue PRBCs |
|---|---|---|
| Demographic data | ||
| Patients (n) | 6 | 5 |
| Female/male (n) | 1/5 | 2/3 |
| Ethnicity (n, Caucasian/Other) | 6/0 | 5/0 |
| Age (years) | 71±7 | 69±6 |
| Body-mass index (kg/m2) | 29±7 | 25±3 |
| APACHE II Score | 17±5 | 19±6 |
| Comorbidities (n) | ||
| Arterial hypertension | 5 | 5 |
| Coronary artery disease | 3 | 3 |
| Diabetes | 2 | 2 |
| Cardiomyopathy | 2 | 2 |
| Pulmonary artery hypertension | 1 | 0 |
| COPD | 1 | 1 |
| Surgical characteristics | ||
| Procedure (n) | ||
| CABG | 1 | 1 |
| CABG plus aortic valve replacement | 1 | 1 |
| Aortic valve replacement | 2 | 2 |
| Mitral valve replacement | 1 | 1 |
| CABG plus mitral valve replacement | 1 | 0 |
| Total time in operating theatre (hours) | 9±2 | 8±2 |
| Time between surgery and study transfusion (hours) | 70 | 74 |
| Data prior to study transfusion | ||
| Hemoglobin (mg/dl) | 8.0±0.7 | 8.2±0.6 |
| Positive end-expiratory pressure ventilation (n) | 2 | 1 |
| Vasopressor use (n) | 6 | 5 |
| Noradrenaline | 2 | 3 |
| Noradrenaline plus Dobutamine | 4 | 2 |