Chest compression device outperforms manual CPR

A battery-operated compression belt buckled around the chest restores blood flow better than manual chest compressions and conventional CPR, according to a Johns Hopkins-led animal study.

The device, which resembles an eight-inch wide seat belt, is buckled around the chest, tightened and motorized. Once switched on, it contracts against the chest, stimulating blood flow.

Researchers who tested the device on 20 pigs in cardiac arrest found that it restored blood flow four times better than manual compressions and returned the hearts to pre-arrest condition. Results of the study, supported by Revivant Corp., are to be presented Nov. 19 at the American Heart Association's 75th annual Scientific Sessions in Chicago.

"The key to restoring viability is to wash out the waste and move oxygenated blood to the vital organs," says Henry R. Halperin, M.D., lead author of the study and professor of medicine and biomedical engineering at Hopkins. "The belt can compress a greater area of the chest than manual compressions, so it restores more blood flow than manual CPR. Wherever a health care professional would do manual CPR, a device like this could be better for the patient."

Researchers induced ventricular fibrillation, an electrical abnormality in the heart that precedes cardiac arrest, in the pigs. They then performed both manual cardiopulmonary resuscitation and CPR using the belt device, in random order, and measured blood pressure and flow before and after injecting the pigs with epinephrine, a hormone that constricts small blood vessels.

About 350,000 people each year suffer sudden cardiac arrest, 95 percent of whom die; most require defibrillation. Defibrillators are most effective if used within the first two minutes of arrest, Halperin says, but most attacks occur at home. It can take an average of six to eight minutes for paramedics to arrive, he says, and defibrillation is often unsuccessful at th

Contact: Karen Blum
Johns Hopkins Medical Institutions

Page: 1 2

Related biology news :

1. Chestnut trees to spread across landscape again, says Purdue scientist
2. Chestnuts used chemicals to dominate southern Appalachian forests
3. Can exercise before diving prevent decompression sickness?
4. Decompression is a gas
5. Groundbreaking research could ignite new solutions to heat transfer in nano-devices
6. University of Pittsburgh medical center among first to implant heart assist device
7. University of Pittsburgh receives NIH funding to develop heart assist device for infants
8. New database aids medical device exporters
9. Ancient Greeks help scientists build environmentally friendly nano devices
10. Tanning devices - Fast track to skin cancer?
11. New device can help defend against novel biological agents

Post Your Comments:

(Date:10/26/2015)... and LAS VEGAS , ... Nok Labs , an innovator in modern authentication and ... today announced the launch of its latest version of ... platform enabling organizations to use standards-based authentication that supports ... Nok S3 Authentication Suite is ideal for organizations deploying ...
(Date:10/23/2015)... California , October 23, 2015 ... (SMI) announce a mobile plug and play integration of ... real-world tasks SensoMotoric Instruments (SMI) present ... wearable solutions for eye tracking and physiological data registration. ... SMI Eye Tracking Glasses 2w and physiological ...
(Date:10/22/2015)... 2015 About fingerprint biometrics ... individual with the database to identify and verify an ... loop. Pattern-based algorithms are used to match an individual,s ... was introduced in 1986, which is being used by ... criminal. Technavio,s analysts forecast the global fingerprint ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... ... November 24, 2015 , ... The Academy of Model Aeronautics (AMA), ... MultiGP, also known as Multirotor Grand Prix, to represent the First–Person View (FPV) racing ... AMA members have embraced this type of racing and several new model aviation pilots ...
(Date:11/24/2015)... QUEBEC CITY , Nov. 24, 2015 /PRNewswire/ ... (the "Company") announced today that the remaining 11,000 ... Common Share Purchase Warrants (the "Series B Warrants") ... agreement were exercised on November 23, 2015, which ... Common Shares.  After giving effect to the issuance ...
(Date:11/24/2015)... ... November 24, 2015 , ... Creation Technologies would like ... to Deloitte's 2015 Technology Fast 500 list of the fastest growing companies in ... Class II medical device that speeds up orthodontic tooth movement by as much ...
(Date:11/24/2015)... INCLINE VILLAGE, Nev. , Nov. 24, 2015  PDL ... John P. McLaughlin , the company,s president and chief ... Piper Jaffray Healthcare Conference next week in New ... and will occur on Tuesday, December 1, 2015 at 9:30 ... and Presentations." Please connect to the website at least 15 ...
Breaking Biology Technology:
Cached News: