Accordingly, the higher threshold value calculated for
the PABD+PCS patients is consistent with the observation that PABD is a risk factor that increases the transfusion
probability in younger and healthier (according to ASA
score, basal haemoglobin concentration and presence
of co-morbidities) patients. Moreover, patients who
had predeposited blood had a greater net decrease
in haemoglobin concentration at discharge and after
surgery, even though donated autologous blood had
been transfused. These observations, taken together,
demonstrate that PABD has a negative effect on patients,
and are consistent with the decline in participation in
PABD protrammes in recent years9,30-34.