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
.

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