Outcomes of children admitted to intensive care after out-of-hospital cardiac arrest in Victoria, Australia.

Objectives: Paediatric out-of-hospital cardiac arrest (OHCA) is an uncommon event but is associated with high mortality and severe neurological sequelae among survivors. Most studies of paediatric OHCA are population-based, with very few reports on the cohort admitted to the paediatric intensive care unit (PICU). We sought to determine outcomes and predictors of neurologically intact survival in these children admitted to the PICU.

Design And Setting: Retrospective analysis of data prospectively collected from the PICU and emergency department (ED) databases and cross-checked with medical records and coronial reports for January 2005 to December 2014. Neurological outcome was assessed using the Paediatric Cerebral Performance Category scale.

Main Outcome Measure: Survival with a favourable neurological outcome at hospital discharge.

Results: In the 10 years, 283 children presented with OHCA. After 16 study exclusions (because of cardiopulmonary resuscitation [CPR] duration < 1 min or age > 16 years), there were 121 children who died in the ED and 146 admitted to the PICU. Among the PICU cohort, hospital survival with favourable neurological outcome was 42% (60 of 143), and at 1 year after arrest it was 41% (59 of 143). The following factors were associated with the primary outcome: bystander CPR (odds ratio [OR], 4.74 [95% CI, 1.49-15.05]); cardiac aetiology (OR, 6.40 [95% CI, 1.65-24.76]); male sex (OR, 0.32 [95% CI, 0.12- 0.84]); and CPR duration: = 20 min v 0-5 min (OR, 0.05 [95% CI, 0.01-0.16]) and 6-20 min v 0-5 min (OR, 0.45 [95% CI, 0.16-1.28]).

Conclusions: Bystander CPR and primary cardiac aetiology had strong associations with survival with a favourable neurological outcome after paediatric OHCA. Maximising CPR education for the community, and targeting people most likely to witness a paediatric OHCA may further improve outcomes.