Methods | Methods of randomisation and allocation concealment were not described | |
Participants | 150 consecutive patients undergoing elective cardiac surgery involving cardiopulmonary bypass (CPB) were randomly assigned to one of two groups
NB: Data for gender was not reported. |
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Interventions |
NB: Both groups were exposed to cell salvage. |
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Outcomes | Number of patients transfused allogeneic blood (n) Amount of allogeneic blood transfused (units) Number of patients transfused FFP and Hetastarch (n) Amount of FFP and Hetastarch transfused (ml) Number of patients receiving autotransfusion (n) Amount of blood autotransfused (ml) Blood loss (ml) Hematological data |
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Notes | Quality assessment score (Schulz criteria): 3/7 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 |
Yes | Double blind. |