Methods | Methods of randomisation and allocation concealment were not described | |
Participants | 100 patients undergoing elective cardiac surgery requiring cardiopulmonary bypass (CPB) were randomised to one of two groups
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Interventions |
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Outcomes | Amount of allogeneic blood transfused (units) Blood loss (ml) Mortality (n) |
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Notes | Quality assessment score (Schulz criteria): 4/7 Transfusion protocol not specified. |
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Risk of bias | ||
Item | Authors’ judgement | Description |
Adequate sequence generation? | Unclear | Method of randomisation was not described. |
Allocation concealment? | Unclear | B - Unclear |
Blinding? All outcomes |
Unclear | Double blind. |