Bearers of the sickle cell allele (S) are currently eligible for blood donations in Belgium. As blood donors are not tested for this allele, their heterozygous status is unknown. However, guidelines recommend to transfuse sickle cell patients with blood that is negative for the 'S' hemoglobin. To the investigator's knowledge, no study has been conducted to evaluate the impact of transfusion with blood originating from heterozygous donors on the transfusion performance and the improvement of clinical status of the sickle cell disease patients.
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Hemoglobin level -patient
Timeframe: 1 hour before blood transfusion
Hemoglobin level -patient
Timeframe: 1 hour after blood transfusion
% of 'S' type hemoglobin -patient
Timeframe: 1 hour before blood transfusion
% of 'S' type hemoglobin -patient
Timeframe: 1 hour after blood transfusion
Hemoglobin level - transfused blood
Timeframe: 1 hour before blood transfusion
% of 'S' type hemoglobin -transfused blood
Timeframe: 1 hour before blood transfusion
Transfusion yield
Timeframe: 1 hour after blood transfusion
Medical complications
Timeframe: 1 month
Length of stay
Timeframe: 1 month
Length of stay post transfusion
Timeframe: 1 month
Number of blood transfusions
Timeframe: 1 month
Hospital re-admission
Timeframe: 1 month
Mortality rate
Timeframe: 1 month.