Cut-off values of time interval between witness and bystander cardiopulmonary resuscitation for neurologically favourable survival after bystander-witnessed out-of-hospital cardiac arrest

Abstract

Aim: Time interval between witness and bystander cardiopulmonary resuscitation (BCPR) is one of critical time factors associated with survival from bystander-witnessed out-of-hospital cardiac arrest (OHCA). This study aimed to investigate whether cut-off values of this time interval for neurologically favourable outcomes differ among subgroups of bystander-witnessed OHCA.