Analysis of Seattle EMS and hospital data indicates low COVID infection risk from bystander CPRJune 05, 2020
DALLAS, June 5, 2020 -- Analysis of Seattle emergency medical services (EMS) and hospital data from January 1 to April 15, 2020, indicates bystander CPR is a lifesaving endeavor whose benefits outweigh the risks of COVID-19 infection, according to a new article published yesterday in the American Heart Association's flagship journal Circulation.
Resuscitation of patients in out-of-hospital cardiac arrest (OHCA) depends on rapid, coordinated efforts involving laypersons, telecommunicators, prehospital professionals and hospital providers. However, during the pandemic, experts have questioned whether chest compressions are a high-risk "aerosolizing" procedure that could increase the risk of COVID-19 infection, especially since bystander CPR is typically provided for only a few minutes.
In a Research Letter titled Prevalence of COVID-19 in Out-of-Hospital Cardiac Arrest: Implications for Bystander CPR, University of Washington EMS physicians and researchers in Seattle and King County, Washington, analyzed EMS and hospital treatment data, and death certificates of all OHCAs to estimate the frequency of COVID-19 infection among the total out-of-hospital cardiac arrest population served.
From January 1 to April 15, EMS responded to 1,067 out-of-hospital cardiac arrests of which 478 were treated by EMS with CPR. During the active period of COVID-19 (February 26-April 15), EMS responded to 537 (50.3%) out-of-hospital cardiac arrests, of which 230 (48.1%) were EMS treated with CPR.
The researchers note, as of April 15:
- The community had 15 deaths per 100,000 population from COVID-19, higher than 42 other states at that time.
- COVID-19 was diagnosed in less than 10% of out-of-hospital cardiac arrests.
- Assuming the risk of transmission to bystanders performing hands-only CPR without PPE [personal protective equipment] is 10%, treating 100 patients could result in 1 bystander infection (10% with COVID-19 x 10% transmission).
- Given a 1% mortality for COVID-19, approximately 1 rescuer might die in 10,000 bystander CPR events.
- By comparison, bystander CPR saves more than 300 additional lives among 10,000 patients with out-of-hospital cardiac arrest.
-end-Authors of the paper are Michael R. Sayre, M.D.; Leslie M. Barnard, M.P.H.; Catherine R. Counts, Ph.D., M.H.A.; Christopher J. Drucker, Ph.D.; Peter J. Kudenchuk, M.D.; Thomas D. Rea, M.D., M.P.H.; and Mickey S. Eisenberg, M.D., Ph.D. Disclosures are in the manuscript.
No external funding sources are listed.
Additional CPR Resources:
- June 1 - 7 is CPR Awareness Week
- Podcast Series: Insights from King County and Seattle EMS (March 20, 2020)
- Podcast Series: Recent Updates from King Country & Seattle EMS (March 27, 2020)
- Hands Only CPR
- Additional COVID-19 Resources:
- COVID-19 resources for CPR training
- COVID-19 info for health care professionals
- COVID-19 consumer information and resources
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The American Heart Association is a relentless force for a world of longer, healthier lives. We are dedicated to ensuring equitable health in all communities. Through collaboration with numerous organizations, and powered by millions of volunteers, we fund innovative research, advocate for the public's health and share lifesaving resources. The Dallas-based organization has been a leading source of health information for nearly a century. Connect with us on heart.org, Facebook, Twitter or by calling 1-800-AHA-USA1.
American Heart Association
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