Navigation Links
Uninterrupted chest-compressions key to survival in cardiac arrest outside hospital setting
Date:9/28/2009

DALLAS Sept. 29, 2009 Maximizing the proportion of time spent performing chest compressions during cardiopulmonary resuscitation (CPR) substantially improves survival in patients who suffer cardiac arrest outside a hospital setting, according to a multicenter clinical study that included UT Southwestern Medical Center.

The findings, available in today's issue of Circulation, come from the largest clinical investigation to evaluate the association between chest compressions by emergency medical service (EMS) providers before the first attempted defibrillation and survival to hospital discharge. Out-of-hospital cardiac arrest is a leading cause of premature death worldwide, and survival is often less than 5 percent.

One of the most important aspects of quality CPR is the proportion of time spent performing chest compressions, but EMS providers typically perform chest compressions only 50 percent of the total time spent on resuscitative efforts.

"It's a common problem, because rescuers are involved in so many other tasks checking for a pulse, starting intravenous therapy and giving ventilation, among other things," said Dr. Ahamed Idris, professor of emergency medicine at UT Southwestern and a pioneer in resuscitation research and CPR. Dr. Idris also is the principal investigator for the Dallas portion of the new study, conducted at seven clinical centers across North America.

"Compressions are being interrupted half of the time or more, and that has a detrimental effect on the survival of patients," Dr. Idris said. "This study reinforces that interrupting chest compressions has a bad effect on survival. It also provides a rationale for relatively simple changes to CPR training and practice, that if implemented are likely to improve survival."

Dallas-area paramedics and firefighters are being trained to begin CPR immediately and to administer uninterrupted chest compressions for two minutes before re-checking the heart rhythm or using a defibrillator to shock the heart. UT Southwestern's emergency medicine program provides medical oversight for EMS providers in more than a dozen Dallas-area cities.

In this study, researchers studied data from patients in the Resuscitation Outcomes Consortium (ROC) who had suffered from cardiac arrest with a heart rhythm indicating ventricular fibrillation or ventricular tachychardia. The researchers focused on the effect of the number of chest compressions paramedics administered per minute before they shocked the heart.

"People who received chest compressions 60 to 80 percent of the time during CPR did better than those who received fewer chest compressions," Dr. Idris said.

Previous animal studies have demonstrated that interruptions in chest compressions decrease coronary and cerebral blood flow. Based on further clinical and laboratory observations, the American Heart Association and the European Resuscitation Council Guidelines for Cardiopulmonary Resuscitation in 2005 recommended increasing the proportion of time spent delivering chest compressions.

In 2008 the American Heart Association updated its CPR guidelines and now advocates that bystanders only perform continuous chest compressions for cardiac arrest instead of combining chest compressions with mouth-to-mouth ventilation.


'/>"/>

Contact: Connie Piloto
connie.piloto@utsouthwestern.edu
214-648-3404
UT Southwestern Medical Center
Source:Eurekalert  

Related medicine news :

1. Swiss study finds income affects prostate cancer patients survival
2. Vitamin D May Improve Melanoma Survival
3. Physician Reimbursement and Their Practice Survival Defended by American National Medical Management
4. Leukemia Drug in High Dose Helps Survival
5. SPIRIT IV trial shows everolimus stent sets new standard for event-free survival
6. Nexavar in Combination With Chemotherapy Demonstrates 74 Percent Improvement in Progression-Free Survival in Patients With Advanced Breast Cancer in Phase 2 Study
7. Ultrasound can predict tumor burden and survival in melanoma patients
8. Switching early breast cancer patients to exemestane improves long-term survival
9. Study Published in The Lancet Showed Significant Survival Benefit for Patients Facing Deadly Form of Lung Cancer
10. More Chest Compressions During CPR Improves Survival Odds
11. FDNY Makes Largest First Responder Purchase of Masimo Rad-57 Pulse CO-Oximeters to Improve Survival of Firefighters and Victims of Carbon Monoxide Poisoning
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Uninterrupted chest-compressions key to survival in cardiac arrest outside hospital setting
(Date:2/10/2016)... ... February 10, 2016 , ... MetLoop ... revolutionary new 2.0 version at the International Roofing Expo in Orlando, Florida on ... the world's most advanced weather technology in the hands of consumers, roofing contractors, ...
(Date:2/10/2016)... ... February 10, 2016 , ... InDemand Interpreting , a ... partnered with Heart City Health Center to improve access to language ... City Health Center has provided the Elkhart community with access to high quality, ...
(Date:2/10/2016)... ... February 10, 2016 , ... Compliancy Group LLC ... of medical professionals throughout the country. The Guard was specifically designed to handle ... procedures, employee training, regulatory updates, and compliance coaching. , In addition to meeting ...
(Date:2/10/2016)... ... February 10, 2016 , ... Emergency rooms provide emergency care to stabilize critical ... leave patients with dental emergencies at risk of losing a tooth or their smiles. ... , Common dental emergencies include:, , Avulsed or knocked-out ...
(Date:2/10/2016)... ... February 10, 2016 , ... Dr. Peyman ... is now offering a variety of comprehensive procedures for facial enhancement. The treatments ... volume restoration, lip enhancement and nasal reshaping. , As a result, patients ...
Breaking Medicine News(10 mins):
(Date:2/10/2016)... Feb. 10, 2016  LexisNexis® Risk Solutions, a ... announced the launch of LexisNexis Provider Performance ... helps improve and optimize the quality and efficiency ... using severity-adjusted scores. By measuring provider performance through ... to deliver better outcomes, improve the patient experience ...
(Date:2/10/2016)... CORAL SPRINGS, Florida , February 10, 2016 ... Adamas Pharmaceuticals, Inc. (NASDAQ: ADMS ) and Celldex Therapeutics, ... Medivation, Inc. (NASDAQ: MDVN ), Adamas Pharmaceuticals, Inc. (NASDAQ: ... ). --> Today,s latest Orphan Drug Designations become ... granted by the FDA to novel drugs and biologics which ...
(Date:2/10/2016)... , Feb. 10, 2016 /PRNewswire/ - The President ... has announced the release of an anti-radiation product ... a revolutionary breakthrough in the treatment of cancer ... exposure. It will assist in the healing of ... It will also protect only the healthy cells ...
Breaking Medicine Technology: