Abstract P74: The California AutoPulse Quality Assurance Registry
Background: The AutoPulse (AP) is an automated self adjusting electromechanical chest compressor that uses a load distributing compression band to compress the anterior chest and perform CPR. The California AP Registry was undertaken to evaluate the occurrence of adverse events associated with the use of AP-CPR across 35 pre-hospital emergency medical services systems in California.
Methods: Prospective pre-hospital multisystem clinical registry of patients suffering cardiac arrest and receiving standard manual CPR (M-CPR), AP-CPR or both. All patients presented to participating EMS systems between April 1, 2007 and June 1, 2009 were included in this cohort study. The study endpoints included rate of return of spontaneous circulation (ROSC), ROSC sustained to emergency department admission and observed adverse events.
Results: 1,316 patients were enrolled, 1,024 meeting inclusion/exclusion criteria. Demographics were age 71±5 years, 35% female, 21% presenting as ventricular fibrillation and 39% bystander witnessed. Adverse events were rare. Only 6 AP-CPR treated patients (0.8%) reported events, and all were consistent with any form of CPR.
Limitations: nonrandomized convenience sample, only near-term outcomes were available.
Conclusion: Use of the AP has near-term outcomes comparable to M-CPR, and may be associated with higher rates of ROSC. Adverse events are only rarely reported by EMS personnel and do appear more common in patients treated with the AP-CPR device.