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Constant compressions critical to CPR
February 06, 2009Interrupting chest compressions during resuscitation reduces the chances of heartbeat return after defibrillation. New research published in the open access journal BMC Medicine shows that for every second of a pause in compressions there is a 1% reduction in the likelihood of success.
Kenneth Gundersen from the University of Stavanger, Norway, worked with a team of researchers to quantify the effect of compression interruptions on the probability of a return of spontaneous circulation (ROSC). He said, "We analysed data from 911 interruptions and found that every second without the blood perfusion generated by chest compressions has a negative impact on the estimated probability of ROSC".
The American Heart Association's first aid guidelines were updated last year, suggesting that the 'mouth-to-mouth' component of CPR was unnecessary. This new research supports that position, in that the pause in compressions required to perform artificial respiration may reduce the patient's chances of recovering their heartbeat.
Gundersen said, "The first priority when witnessing a cardiac arrest is to make an emergency call. Beyond this our results show that performing powerful chest compressions with minimal interruptions is of utmost importance. The quality of CPR matters and everyone should practice their CPR skills at regular intervals."
BioMed Central
Gundersen said, "The first priority when witnessing a cardiac arrest is to make an emergency call. Beyond this our results show that performing powerful chest compressions with minimal interruptions is of utmost importance. The quality of CPR matters and everyone should practice their CPR skills at regular intervals."
BioMed Central
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Emergency medical service (EMS) providers in the United States assess an estimated 350,000 cardiac arrests each year. Only 5 to 10 percent of people who have sudden cardiac arrest survive. Better quality cardiopulmonary resuscitation (CPR) provided by prehospital EMS providers may be associated with better patient outcome.
Continuous chest compression-CPR improved cardiac arrest survival in Arizona
The chance of surviving a cardiac arrest outside a hospital was found to be twice as high when bystanders performed continuous chest compressions without mouth-to-mouth breathing than when bystanders performed standard CPR.
Less than 1 in 3 Toronto bystanders who witness a cardiac arrest try to help: Study
Researchers at St. Michael's Hospital working in conjunction with EMS services, paramedics and fire services across Ontario found that a bystander who attempts cardiopulmonary resuscitation (CPR) can quadruple the survival rate to over 50 per cent.
NHLBI stops enrollment in study on resuscitation methods for cardiac arrest
Enrollment has ended early in a large, multicenter clinical trial comparing two distinct resuscitation strategies delivered by emergency medical service (EMS) providers to increase blood flow during cardiac arrest.
Cardiac arrest casualties form a valuable source of donor kidneys
A pilot study of a system for harvesting kidneys from non-heart-beating donors where attempts of resuscitation after a witnessed out-of-hospital cardiac arrest have failed (uncontrolled NHBDs) resulted in 21 successful kidney transplants - a 10% increase in the transplantation rate - over 17 months.
Cooling treatment after cardiac arrest is cost-effective, Penn study shows
A brain-preserving cooling treatment called therapeutic hypothermia is a cost-effective way to improve outcomes after out-of-hospital cardiac arrest, which claims the lives of more than 300,000 people each year in the United States and leaves thousands of others neurologically devastated.
New UAB Study Finds Novice Parents Overlook Many Child-Injury Risks
University of Alabama at Birmingham (UAB) Department of Psychology researchers report that new parents identified less than half of the safety hazards in a simulated home environment, and most perceived that their children were less vulnerable to injuries than other children.
Survival rates for elderly receiving hospital CPR did not improve from 1992 to 2005
A study of elderly patients receiving CPR in the hospital shows that rates of survival did not improve from 1992 to 2005.
Hospitalized patients need better understanding of CPR and outcomes
Many hospitalized patients overestimate their chance of surviving an in-hospital cardiac arrest and do not know what CPR really involves, a University of Iowa study has shown.
Mock CPR drills in kids show many residents fail in key skills, Hopkins study reveals
Research from the Johns Hopkins Children's Center exposes alarming gaps in training hospital residents in "first response" emergency treatment of staged cardiorespiratory arrests in children, while at the same time offering a potent recipe for fixing the problem.
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