Featured Research

from universities, journals, and other organizations

Increase in survival following bystander CPR for out-of-hospital heart attack

Date:
October 1, 2013
Source:
American Medical Association (AMA)
Summary:
In Denmark between 2001 and 2010 there was an increase in bystander cardiopulmonary resuscitation (CPR) that was associated with an increase in survival following out-of-hospital cardiac arrest, according to a study.

In Denmark between 2001 and 2010 there was an increase in bystander cardiopulmonary resuscitation (CPR) that was associated with an increase in survival following out-of-hospital cardiac arrest, according to a study in the October 2 issue of JAMA.

Out-of-hospital cardiac arrest affects approximately 300,000 individuals in North America annually. "Despite efforts to improve prognosis, survival remains low, with aggregated survival-to-discharge rates less than 8 percent. In many cases, time from recognition of cardiac arrest to the arrival of emergency medical services (EMS) is long, leaving bystanders in a critical position to potentially influence patient prognosis through intervention before EMS arrival. However, only a minority of cardiac arrests receive bystander CPR," according to background information in the article.

A low frequency of bystander CPR (<20 percent) and low 30-day survival (<6 percent) were identified nearly 10 years ago in Denmark, which led to several national initiatives to strengthen bystander resuscitation attempts and advanced care. Despite these nationwide efforts, it has been unknown whether there have been changes in resuscitation attempts by bystanders and improvements in survival.

To examine this question, Mads Wissenberg, M.D., of Copenhagen University Hospital Gentofte, Hellerup, Denmark, and colleagues analyzed trends in pre-hospital factors directly related to cardiac arrest as well as trends in survival during the past 10 years. The study included 19,468 patients with out-of-hospital cardiac arrest for whom resuscitation was attempted. The median (midpoint) age of patients was 72 years; 67 percent were men.

Throughout the study period, there was an increase in the proportion of patients receiving bystander CPR (21.1 percent to 44.9 percent). The increase in proportion of people defibrillated with an automatic defibrillator by a bystander was small (1.1 percent to 2.2 percent). "The large temporal increase in rates of bystander CPR observed in our study is most likely attributable to the overall increasing level of attention to resuscitation by bystanders in Denmark, including an increase in both mandatory and voluntary first aid training, with an estimate of more than 15 percent of the Danish population having taken CPR courses between 2008 and 2010."

During the study period, there was an increase in the proportion of patients alive on arrival at the hospital (7.9 percent to 21.8 percent), as well as an increase in 30-day (3.5 percent to 10.8 percent) and 1-year (2.9 percent to 10.2 percent) survival. Bystander CPR was positively associated with 30-day survival.

"Our nationwide study had 4 major findings: rates of bystander CPR increased substantially; survival rates at 30 days and l year more than tripled; the number of survivors per 100,000 persons more than doubled; and rates of defibrillation by bystanders remained low," the authors write.

"Because of the co-occurrence of other initiatives to improve outcome after cardiac arrest, a causal relationship between bystander CPR and survival remains uncertain."


Story Source:

The above story is based on materials provided by American Medical Association (AMA). Note: Materials may be edited for content and length.


Journal Reference:

  1. Mads Wissenberg. Association of National Initiatives to Improve Cardiac Arrest Management With Rates of Bystander Intervention and Patient Survival After Out-of-Hospital Cardiac Arrest. JAMA, 2013; 310 (13): 1377 DOI: 10.1001/jama.2013.278483

Cite This Page:

American Medical Association (AMA). "Increase in survival following bystander CPR for out-of-hospital heart attack." ScienceDaily. ScienceDaily, 1 October 2013. <www.sciencedaily.com/releases/2013/10/131001191425.htm>.
American Medical Association (AMA). (2013, October 1). Increase in survival following bystander CPR for out-of-hospital heart attack. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2013/10/131001191425.htm
American Medical Association (AMA). "Increase in survival following bystander CPR for out-of-hospital heart attack." ScienceDaily. www.sciencedaily.com/releases/2013/10/131001191425.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Republicans Vote to Sue Obama Over Healthcare Law

House Republicans Vote to Sue Obama Over Healthcare Law

Reuters - US Online Video (July 31, 2014) The Republican-led House of Representatives votes to sue President Obama, accusing him of overstepping his executive authority in making changes to the Affordable Care Act. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Despite Health Questions, E-Cigs Are Beneficial: Study

Despite Health Questions, E-Cigs Are Beneficial: Study

Newsy (July 31, 2014) Citing 81 previous studies, new research out of London suggests the benefits of smoking e-cigarettes instead of regular ones outweighs the risks. Video provided by Newsy
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
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