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Study Supports CPR Chest Compressions for Cardiac Arrest

Study Supports CPR Chest Compressions for Cardiac Arrest


MONDAY, April 2 (HealthDay News) -- People in cardiac arrest who can't be helped by a defibrillator are more apt to survive if they receive CPR in accordance with updated guidelines that stress chest compressions, a new study finds.

Researchers reporting in April 2 in Circulation said their findings are significant, since nearly 75 percent of cardiac arrests are "non-shockable," meaning they will not respond to a defibrillator.

"By any measure -- such as the return of pulse and circulation or improved brain recovery -- we found that implementing the new guidelines in these patients resulted in better outcomes from cardiac arrest," the study's lead author, Dr. Peter J. Kudenchuk, professor of medicine at the University of Washington, Seattle, said in a journal news release.

Although there have been few life-saving options for patients who suffer non-shockable cardiac arrest, the study's authors said changes the American Heart Association (AHA) made to its CPR guidelines in 2005 have improved patients' chances of survival. The AHA's changes shifted the focus to more chest compressions with fewer interruptions.

In conducting the study, Kudenchuk and colleagues researchers identified almost 4,000 people who experienced non-shockable cardiac arrest from 2000 to 2010. The patients were divided into two groups: those who had their arrest before the CPR guidelines were changed and those who had their non-shockable arrest after the changes took effect.

After comparing the survival rates of these two groups, the study revealed the patients' likelihood of survival rose from 4.6 percent to 6.8 percent once the new guidelines were in place. The researchers also found the proportion of patients who survived with good brain function increased from 3.4 percent to 5.1 percent and the patients' one-year survival almost doubled, from 2.7 percent to 4.9 percent.

"Now, for the first time, we have seen a treatment that improves survival specifically in these patients," said Kudenchuk. "And that treatment is simply providing the more intense, quality CPR recommended in the new guidelines. You could save 2,500 more lives each year in North America alone by implementing these changes."

Although more research is needed to confirm their findings, the study's authors argued that survival rates among those who suffer non-shockable cardiac arrest can be improved if the AHA's updated CPR guidelines are properly followed.

More information

The U.S. National Institutes of Health provides more information on CPR.

Copyright © 2012 HealthDay. All rights reserved.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.


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