Sanne de Bruin

119 InPUT- pilot study in the Netherlands using an electronic CRF. We expect this to reduce the amount of time to complete the different forms. Also obtaining informed consent might not be necessary in every centre depending on national and local regulations for observational research. Conclusion In this small patient cohort a restrictive transfusion strategy was observed. However, due to the small number of inclusions, clinically relevant conclusions cannot be drawn from this study. The feasibility of this protocol was shown in this pilot study and is suit- able to compare transfused and non-transfused patients in different subpopulations for different blood products. The current study allowed us to optimize the protocol and as result, this adjusted study protocol will be used in an international multicentre observational point prevalence study. The authors can be contacted for participation in the upcoming international trial. 4