Heart gone haywire blamed in some sudden infant deaths

CHICAGO, Nov. 19 The world's first comprehensive population-based genetic autopsy suggests that an electrical problem in the heart may cause one out of 20 cases (5 percent) of sudden infant death syndrome (SIDS), researchers reported today at the American Heart Association's Scientific Sessions 2002.

The problem is similar to a heart condition called long Q-T syndrome that contributes to sudden death in young people and adults. In long Q-T syndrome, the heart electrically recharges itself too slowly or in a disorganized fashion in preparation for the next heartbeat, says lead author Michael J. Ackerman, M.D., Ph.D., an assistant professor at the Mayo Clinic in Rochester, Minn. When combined with a trigger, such as intense emotion or physical exertion, a long Q-T heart can go out of control and cause cardiac arrest and sudden death.

"This often explains cases in which children die suddenly while playing in the sandbox, teen-agers die of unexplained drowning, or previously healthy young adults die suddenly while jogging or shoveling snow," he explains.

Cardiac arrest can be fatal within minutes unless the heart's electrical pattern is restored spontaneously or with the aid of a defibrillator, he says.

Current estimates suggest long Q-T syndrome may affect as many as one in 5,000, says Ackerman.

According to U.S. Vital Statistics, about 3,000 infants die each year of SIDS, defined as the sudden and unexplained death of an infant less than one year old. Several possible causes or triggers have been suggested for SIDS, including babies sleeping on their stomachs, nervous system problems related to breathing, abnormal metabolism in the liver and flaws in the heart's electrical channels, he says.

The electrical or ion channels are proteins critical to orchestrating the electrical signals that prompt the heart to squeeze (beat) and refill between each heartbeat, says Ackerman, who is also director of the Mayo Clinic's sudden death g

Contact: Carole Bullock
American Heart Association

Page: 1 2

Related medicine news :

1. The European Society of Cardiology launches Women at Heart
2. Heart surgeons publish death rates
3. Heart attack treatment gap may be closing for women
4. The Larry King Cardiac Foundation presents The Changing Face of Heart Disease on Feb. 2
5. Brenner Childrens Hospital named to NIH Pediatric Heart Network
6. Heart patients treated by non-cardiologists less likely to receive medications
7. Heart failure patients treated for diabetes with insulin have increase in mortality
8. New research results: Heart jacket shown to be effective
9. Heart surgery patients receive less aggressive discharge care
10. Heart attack, stroke risk overlooked in diabetics
11. Heart arrhythmias easily treated, yet few know risks

Post Your Comments:

(Date:10/13/2017)... ... October 13, 2017 , ... Talented host, actor Rob Lowe, ... in a new episode of "Success Files," which is an award-winning educational program ... investigates each subject in-depth with passion and integrity. , Sciatica occurs when the ...
(Date:10/13/2017)... ... ... “America On The Brink”: the Christian history of the United States and the ... published author, William Nowers. Captain Nowers and his wife, Millie, have six children, ... in the Navy. Following his career as a naval aviator and carrier pilot, ...
(Date:10/12/2017)... Orleans, LA (PRWEB) , ... October 12, 2017 , ... ... centers in the U.S., announced today its plans to open a flagship location in ... will occupy the former Rooms To Go store next to Office Depot in the ...
(Date:10/12/2017)... ... October 12, 2017 , ... The American College of Medical ... Friedman, PhD, FACMI, during the Opening Session of AMIA’s Annual Symposium in Washington, D.C. ... honor of Morris F. Collen, a pioneer in the field of medical informatics, this ...
(Date:10/12/2017)... , ... October 12, 2017 , ... ... Hair Restoration, has recently contributed a medical article to the newly revamped ... Dr. Mohebi’s article spotlights the hair transplant procedure known as Follicular Unit ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... Fla. , Oct. 2, 2017  AllianceRx Walgreens ... company formed by Walgreens and pharmacy benefit manager Prime ... its new brand, which included the unveiling of new ... , as well as at a few other ... the new brand to patients, some of whom will ...
(Date:9/27/2017)... Sept. 27, 2017  Commended for their devotion to personalized ... Ranked as number one in the South Florida Business Journal,s ... Inc. 5000 yearly list, the national specialty pharmacy has found ... Bardisa will soon be honored by SFBJ as the ... Set to receive his award in October, Bardisa ...
(Date:9/22/2017)... ROCKVILLE, Md. , Sept. 22, 2017  As ... by Republican Senators Bill Cassidy (R-LA) and ... Kalorama Information notes that the medical device industry is ... the medical device tax, the 2.3% excise tax on ... Act.  But they also want covered patients, increased visits ...
Breaking Medicine Technology:
Cached News: