Navigation Links
Programming Change in Defibrillator Implants May Lower Death Risk: Study

WEDNESDAY, Nov. 7 (HealthDay News) -- A simple change to the way doctors program implantable cardioverter defibrillators can help people with heart disease live longer and with greater quality of life, according to a new study.

Implantable cardioverter defibrillators (ICDs) are devices that correct dangerous heart rhythms.

Researchers found that simply raising the heart rate at which the device is set to deliver a shock resulted in an 80 percent to 90 percent drop in unnecessary, distressing and painful shocks for heart rhythms that aren't life threatening. They also found that patients' risk of death fell 55 percent compared to patients with traditional ICD programming.

The study was published Nov. 6 in the New England Journal of Medicine and the findings are scheduled for Tuesday presentation at the American Heart Association meeting in Los Angeles.

"The way we've been using implantable defibrillators for the last 20 years has really been less than optimal," said lead study author Dr. Arthur Moss, a professor of cardiology at the University of Rochester Medical Center in Rochester, N.Y. "The extent to which the new programming reduced death and inappropriate therapies was quite striking and has the potential to beneficially affect a wide spectrum of patients who are at risk for sudden death or rhythm disorders."

The study involved 1,500 patients with heart disease from 98 hospitals in the United States, Canada, Europe, Israel and Japan during a two-year period that ended in October 2011. All of the patients received either an ICD or another type of defibrillator called a CRT-D made by Boston Scientific, the company that sponsored the study.

Most defibrillators are set to administer a shock when a person's heart rate exceeds about 170 beats per minute. The researchers said, however, that rates of 180 or 190 are not always life-threatening, do not last long and could simply be the result of increased physical activity. They noted that ICDs are not always able to determine which heart rhythms are dangerous in this range.

By setting ICDs at a higher rate of 200 beats per minute, the patients' risk of receiving an unnecessary shock fell 79 percent, the study found. Fewer shocks also meant less energy delivered to patients' hearts, which may have lowered their risk of death.

"There is considerable research to suggest that there is a small amount of damage to the heart muscle with each delivered shock," Moss said. "If we can eliminate the unnecessary shocks, this is going to be associated with less heart damage and improved outcomes."

Each year, 200,000 ICDs are implanted in the United States, according to the release.

More information

The U.S. National Institutes of Health provides more information on implantable defibrillators.

-- Mary Elizabeth Dallas

SOURCE: University of Rochester Medical Center, news release, Nov. 6, 2012

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Steffi Nossen School of Dance Gears Up for Summer with Exciting Programming for All Ages
2. Early treatment sparks striking brain changes in autism
3. Time Change Means Turning Clocks Back on Sunday
4. Institute for Population Health Improvement releases buyers guide for health information exchange
5. Health Reform 2.0: States Balking at New Insurance Exchanges
6. Gene Mutation Changed Cheetahs Spots to Stripes
7. Flip-Flop? People Can Change Moral Positions and Not Know It
8. Woman Finds Balance in Life Via Drastic Change
9. National deficit outlook unchanged under Obama: UMD policy analysis
10. Combat Stress Linked to Brain Changes in Study
11. How language change sneaks in
Post Your Comments:
Related Image:
Programming Change in Defibrillator Implants May Lower Death Risk: Study
(Date:6/27/2016)... ... June 27, 2016 , ... TherapySites, the leading ... with Tennessee Counseling Association. This new relationship allows TherapySites to continue ... Association, adding exclusive benefits and promotional offers. , "TCA is extremely excited about ...
(Date:6/26/2016)... ... ... Quality metrics are proliferating in cancer care, and are derived from many of ... beholder, according to experts who offered insights and commentary in the current issue of ... full issue, click here . , For the American Society of Clinical Oncology ...
(Date:6/26/2016)... ... June 26, 2016 , ... Brent Kasmer, a legally blind and certified personal trainer is helping ... fitness app. The fitness app plans to fix the two major problems leading the fitness ... size fits all type program , They don’t eliminate all the reasons people ...
(Date:6/25/2016)... ... ... closing of Bruton Memorial Library on June 21 due to a possible lice infestation, as ... of head lice: the parasite’s ability to live away from a human host, and to ... one in the event that lice have simply gotten out of control. , As lice ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. ... from injury. Recently, he has implemented orthobiologic procedures as a method for treating ... one of the first doctors to perform the treatment. Orthobiologics are substances that ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... -- According to a new market research ... Safety Pen Needles), Needle Length (4mm, 5mm, 6mm, 8mm, ... Purchase (Retail, Non-Retail) - Trends & Global Forecasts to ... for the forecast period of 2016 to 2021. This ... 2021 from USD 1.65 Billion in 2016, growing at ...
(Date:6/24/2016)... 24, 2016  Arkis BioSciences, a leading innovator ... more durable cerebrospinal fluid treatments, today announced it ... funding is led by Innova Memphis, followed by ... private investors.  Arkis, new financing will accelerate the ... market release of its in-licensed Endexo® technology. ...
(Date:6/23/2016)... -- Any dentist who has made an implant supported denture ... of them do not even offer this as a viable ... costs involved. And those who ARE able to offer that ... cost that the majority of today,s patients would not be ... , founder of Dental Evolutions Inc. and inventor of Implanova ...
Breaking Medicine Technology: