HOME >> BIOLOGY >> NEWS
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
kblum@jhmi.edu
410-955-1534
Johns Hopkins Medical Institutions
19-Nov-2002


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:
*Name:
*Comment:
*Email:


(Date:4/5/2017)... , April 5, 2017  The Allen Institute ... Allen Cell Explorer: a one-of-a-kind portal and dynamic digital ... 3D imaging data, the first application of deep learning ... human stem cell lines and a growing suite of ... platform for these and future publicly available resources created ...
(Date:4/5/2017)... -- KEY FINDINGS The global market for ... of 25.76% during the forecast period of 2017-2025. The ... the growth of the stem cell market. ... INSIGHTS The global stem cell market is segmented on ... stem cell market of the product is segmented into ...
(Date:4/3/2017)... 3, 2017  Data captured by IsoCode, ... detected a statistically significant association between the ... treatment and objective response of cancer patients ... predict whether cancer patients will respond to ... well as to improve both pre-infusion potency testing ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... DuPont Pioneer ... that they have entered into a multiyear collaboration to identify and characterize novel ... additional tools for gene editing across all applications. , Under the terms of ...
(Date:10/12/2017)... ... 2017 , ... AMRI, a global contract research, development and ... outcomes and quality of life, will now be offering its impurity solutions as ... regulatory requirements for all new drug products, including the finalization of ICH M7 ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... in its endogenous context, enabling overexpression experiments and avoiding the use of exogenous ... RNA guides is transformative for performing systematic gain-of-function studies. , This complement ...
(Date:10/11/2017)... ... October 11, 2017 , ... Proscia Inc ... hosting a Webinar titled, “Pathology is going digital. Is your lab ready?” with ... adoption best practices and how Proscia improves lab economics and realizes an increase ...
Breaking Biology Technology:
Cached News: