Navigation Links
Increase in survival when AED used less than 10 seconds after CPR pause
Date:6/20/2011

TORONTO, Ont., June 20, 2011--Every second counts when performing CPR.

A new study has found the number of people who survive after suffering a cardiac arrest outside a hospital drops significantly if the pause between stopping CPR and using a defibrillator to administer an electric shock is longer than 20 seconds.

The number of people who survive rises significantly if the pause is less than 10 seconds.

"If your pre-shock pause is over 20 seconds, the chances of surviving to reach a hospital, be treated and be discharged are 53 per cent less than if the pause is less than 10 seconds." said Dr. Sheldon Cheskes, lead author of the study published today in Circulation: Journal of the American Heart Association.

Looking at the data another way, Cheskes said researchers found an 18 per cent drop in the number of patients surviving to be discharged from hospital for every five second increase in the pause between CPR and providing a shock with a defibrillator.

Cheskes is a collaborative investigator at the Li Ka Shing Knowledge Institute of St. Michael's Hospital as well as medical director for the Sunnybrook Osler Centre for Prehospital Care.

Cheskes said he hoped the findings would encourage paramedics to minimize any interruption in CPR. He'd also like to see manufacturers produce new software to shorten the length of time it takes to analyze a patient's heart rhythm and charge the defibrillator before delivering a shock. He said more paramedics should be trained to use defibrillators on manual mode rather than automatic to also speed up those two steps.

The researchers examined the files of 815 patients who suffered an out-of-hospital cardiac arrested between December 2005 and June 2007. The data was gathered by the Resuscitation Outcomes Consortium (ROC), a group of 11 Canadian and U.S. regional clinical centres including more than 200 EMS/fire agencies that carry out research related to cardiac arrest resuscitation and life-threatening traumatic injury. The Toronto centre, Rescu, is based at St. Michael's.

ROC's main funders include the Heart and Stroke Foundation of Canada and the Canadian Institutes of Health Research.

"Currently in Canada, less than five per cent of people survive an out-of hospital cardiac arrest," said Manuel Arango, director of health policy for the Heart and Stroke Foundation. "New techniques from the Resuscitation Outcomes Consortium have the potential to dramatically increase these odds. To date, ROC research has tripled survival rates in their test communities − revolutionizing how healthcare professionals do CPR in the field."

"The Canadian Institutes of Health Research are proud to support this resuscitation study," said Dr. Jean Rouleau, Scientific Director of the Institute of Circulatory and Respiratory Health. "When these findings are translated into practice, they will have the potential to save countless lives in Canada and throughout the world."

Cheskes said previous smaller studies showed the length of time between CPR and delivering an electric shock affected whether the patient's heart rhythm was restored. This was the first study to show it impacted how many not only made it to the hospital for treatment but also survived and were discharged.

The study found the length of time between delivering a shock and resuming CPR had no significant impact on survival rates.


'/>"/>

Contact: Leslie Shepherd
shepherdl@smh.ca
416-864-6094
St. Michael's Hospital
Source:Eurekalert

Related medicine news :

1. Sleep apnea may increase the risk of adverse pregnancy outcomes
2. Early exposure to pets does not increase childrens risk of allergies
3. Diversion of ambulances associated with increased risk of death for heart-attack patients
4. New method for measuring Parkinsons disease prevalence reveals sharp increase in Israel
5. Seniors abused during childhood face increased risk of sleep troubles
6. Study finds bankruptcy rates among cancer patients increase along with survival time
7. The best way to conquer migraine is to increase government research funding, headache specialists say
8. Childhood cancer survivors at increased risk of certain tumors in middle-age
9. Anorexic girls have increased bone density after physiological estrogen treatment
10. Bariatric surgery linked to increased fracture risk
11. Study links empathy, self-esteem, and autonomy with increased sexual enjoyment
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/6/2016)... ... February 06, 2016 , ... Research ... treatment helps to reduce the frequency and level of relapse. , ... Healthy Identity and Purpose,” will explore the critical tasks of the recovery phase ...
(Date:2/5/2016)... ... February 05, 2016 , ... VeloReality ... lighter, sleeker next generation LYNX VR Indoor Trainer with multi-rider capability to an ... and manufacturing not only reduce the weight of the unit, they also enhance ...
(Date:2/5/2016)... ... February 05, 2016 , ... The event is being held on April ... in Minneapolis, Minn. Triumph Over Parkinson’s will fund nearly $100,000 for research for the ... lives with Parkinson’s disease and is the architect of this informative event to raise ...
(Date:2/5/2016)... ... 05, 2016 , ... Looking for a last-minute Valentine’s Day gift for the ... toes. Foot massage, whether administered by a professional masseuse or a loved one, can ... Board of Multiple Specialties in Podiatry (ABMSP) has taken the upcoming Valentine’s Day ...
(Date:2/5/2016)... ... February 05, 2016 , ... ... to funding innovative lymphoma research and serving the lymphoma community through a comprehensive ... once again host, Swirl, A Wine Tasting Event at the La Gorce Country ...
Breaking Medicine News(10 mins):
(Date:2/4/2016)... Feb. 4, 2016  SciClone Pharmaceuticals, Inc. (NASDAQ: ... has entered into a settlement agreement with the ... resolving the SEC,s investigation into possible violations of ... terms of the settlement agreement, SciClone has agreed ... disgorgement, pre-judgment interest and a penalty.  This payment ...
(Date:2/4/2016)... 4, 2016 Frontier Pharma: Chronic Obstructive ... Innovation Chronic Obstructive Pulmonary Disease ... inflammation of the airways and lungs. Persistent breathing ... the disease one of the leading causes of ... the world. COPD is linked to cumulative exposure ...
(Date:2/4/2016)...  AMRI (NASDAQ:  AMRI) today announced that Anthony J. ... of Pfizer Global Supply, has been elected to the AMRI ... addition, the Company announced that Mr. Gabe Leung , ... has retired from the AMRI Board of Directors in order ... ventures.  William S. Marth , President and ...
Breaking Medicine Technology: