Maayke Hunfeld

179 Shockable rhythm and outcome Results Child and CA characteristics The target population consisted of 581 children, of whom 138 (24%) had termination of resuscitation and were pronounced deceased at scene and 74 (13%) were transported to other hospitals by HEMS. Of 369 eligible children admitted to the Erasmus MC- Sophia, 360 were included (9 children, 2%, had missing data). An overview of the inclusion is given in figure 1. The basic characteristics are presented in table 1. Most important causes of arrest were drowning (28%), ‘Sudden Infant Death Syndrome’ (SIDS) (15%) and arrhythmia (13%). The median age at CA was 3.4 (IQR 0.8- 9.9) years and 225 (63%) were male. 152 arrests (42%) were witnessed and in 241 (68%) bystander BLS was performed. Of first documented rhythms, 14% were shockable, 66% non-shockable, 20% unknown (i.e. ROSC before arrival of EMS). 6