Enhanced community first responder support system: protocol of a randomized trial to improve bystander cardiopulmonary resuscitation quality for out-of-hospital cardiac arrest patients

This protocol paper describes the rationale, methodology, and run-in period recruitment experience of the trial, where all non-pregnant adult suspected OHCA patients will be eligible for the study, on whom CFR provides CPR engaging the eCSS. CFRs will be recruited from a volunteers' registry maintained by the Singapore Civic Defence Force, the largest publicly funded EMS agency. This trial protocol has been registered in the ClinicalTrials.gov registry [ID NCT06530433].