Featured Research

from universities, journals, and other organizations

For cardiac arrest CPR performed by laypersons, chest compression-only may lead to better outcomes

Date:
October 6, 2010
Source:
JAMA and Archives Journals
Summary:
In a comparison of outcomes in Arizona for out-of-hospital cardiopulmonary resuscitation (CPR) for cardiac arrest performed by bystanders, patients who received compression-only CPR were more likely to survive to hospital discharge than patients who received conventional CPR or no CPR, according to a new study.

In a comparison of outcomes in Arizona for out-of-hospital cardiopulmonary resuscitation (CPR) for cardiac arrest performed by bystanders, patients who received compression-only CPR were more likely to survive to hospital discharge than patients who received conventional CPR or no CPR, according to a study in the October 6 issue of JAMA.

Out-of-hospital cardiac arrest is a major public health problem, affecting approximately 300,000 individuals in the United States annually. Although survival rates vary considerably, outcomes can be improved with bystander CPR. In 2005, a statewide program was established in Arizona aimed at improving survival. "These efforts included changes in the approach to the care provided by both bystanders and emergency medical services (EMS) personnel and were based on the increasing evidence in favor of minimizing interruptions in chest compressions during CPR," the authors write. A multifaceted effort was launched to encourage bystanders to use compression-only CPR (COCPR) because this approach is easier to teach, learn, remember, and perform than conventional CPR with rescue breathing, according to background information in the article.

Bentley J. Bobrow, M.D., of the Arizona Department of Health Services, Phoenix, and colleagues evaluated whether widespread endorsement of COCPR for adult sudden cardiac arrest would be associated with an increased likelihood that lay rescuers would perform CPR and an increased likelihood of survival to hospital discharge compared with no bystander CPR and conventional CPR. The study included patients at least 18 years old with out-of-hospital cardiac arrest between January 2005 and December 2009 in Arizona. A total of 4,415 adults with out-of-hospital cardiac arrest met all inclusion criteria for analysis, including 2,900 who received no bystander CPR, 666 who received conventional CPR (15.1 percent), and 849 who received COCPR (19.2 percent).

The researchers found that rates of survival to hospital discharge were 5.2 percent for the no bystander CPR group, 7.8 percent for conventional CPR, and 13.3 percent for COCPR. The annual rate for lay rescuers providing any type of bystander CPR increased significantly over time, from 28.2 percent in 2005 to 39.9 percent in 2009. "Among patients who received bystander CPR, the proportion with COCPR increased significantly over time, from 19.6 percent in 2005 to 75.9 percent in 2009. Overall survival also increased significantly over time: from 3.7 percent in 2005 to 9.8 percent in 2009." Further analysis indicated that COCPR was associated with an approximately 60 percent improved odds of survival compared with no bystander CPR or conventional CPR.

The authors add that there are multiple reasons COCPR may have advantages over conventional CPR techniques, including the rapid deterioration of forward blood flow that occurs during even brief disruptions of chest compressions, the long ramp-up time to return to adequate blood flow after resuming chest compressions, the complexity of conventional CPR, the significant time required to perform the breaths, and the critical importance of cerebral and coronary circulation during arrest.

Editorial: Compression-Only CPR -- Pushing the Science Forward

In an accompanying editorial, David C. Cone, M.D., of the Yale University School of Medicine, New Haven, Conn., writes that the findings of this and other studies suggesting a survival benefit for compression-only CPR should encourage and justify continuing investigations involving this CPR method.

"In the meantime, physicians and other health care professionals involved in resuscitation should look to the new [CPR] Guidelines 2010 documents for the international consensus on the science of compression-only CPR, and should look to new-curriculum CPR classes that will follow as opportunities to encourage the general public to learn this simple and potentially lifesaving skill."


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Journal References:

  1. Bentley J. Bobrow; Daniel W. Spaite; Robert A. Berg; Uwe Stolz; Arthur B. Sanders; Karl B. Kern; Tyler F. Vadeboncoeur; Lani L. Clark; John V. Gallagher; J. Stephan Stapczynski; Frank LoVecchio; Terry J. Mullins; Will O. Humble; Gordon A. Ewy. Chest Compression-Only CPR by Lay Rescuers and Survival From Out-of-Hospital Cardiac Arrest. JAMA, 2010; 304 (13): 1447-1454 DOI: 10.1001/jama.2010.1392
  2. David C. Cone. Compression-Only CPR: Pushing the Science Forward. JAMA, 2010; 304 (13): 1493-1495 DOI: 10.1001/jama.2010.1420

Cite This Page:

JAMA and Archives Journals. "For cardiac arrest CPR performed by laypersons, chest compression-only may lead to better outcomes." ScienceDaily. ScienceDaily, 6 October 2010. <www.sciencedaily.com/releases/2010/10/101005161208.htm>.
JAMA and Archives Journals. (2010, October 6). For cardiac arrest CPR performed by laypersons, chest compression-only may lead to better outcomes. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/2010/10/101005161208.htm
JAMA and Archives Journals. "For cardiac arrest CPR performed by laypersons, chest compression-only may lead to better outcomes." ScienceDaily. www.sciencedaily.com/releases/2010/10/101005161208.htm (accessed April 18, 2014).

Share This



More Health & Medicine News

Friday, April 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

'Holy Grail' Of Weight Loss? New Find Could Be It

'Holy Grail' Of Weight Loss? New Find Could Be It

Newsy (Apr. 18, 2014) In a potential breakthrough for future obesity treatments, scientists have used MRI scans to pinpoint brown fat in a living adult for the first time. Video provided by Newsy
Powered by NewsLook.com
Little Progress Made In Fighting Food Poisoning, CDC Says

Little Progress Made In Fighting Food Poisoning, CDC Says

Newsy (Apr. 18, 2014) A new report shows rates of two foodborne infections increased in the U.S. in recent years, while salmonella actually dropped 9 percent. Video provided by Newsy
Powered by NewsLook.com
Scientists Create Stem Cells From Adult Skin Cells

Scientists Create Stem Cells From Adult Skin Cells

Newsy (Apr. 17, 2014) The breakthrough could mean a cure for some serious diseases and even the possibility of human cloning, but it's all still a way off. Video provided by Newsy
Powered by NewsLook.com
Obama: 8 Million Healthcare Signups

Obama: 8 Million Healthcare Signups

AP (Apr. 17, 2014) President Barack Obama gave a briefing Thursday announcing 8 million people have signed up under the Affordable Care Act. He blasted continued Republican efforts to repeal the law. (April 17) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins