Simple Science @Heart: ‘Maps’ of kids’ hearts could help correct rapid rhythms
New research could lead to a better “map” for doctors trying to fix a rare, rapid rhythm in children’s hearts.
Doctors usually treat this condition by destroying the abnormal tissue that is disrupting the heart’s electrical rhythm. But finding that tissue can be hard; it’s not in the same spot for every person.
The researchers made their maps using electrical recordings from inside the heart to find the locations of high- and low-voltage tissues. That enabled them to more precisely target the weaker voltage tissues.
The condition is called atrioventricular nodal reentrant tachycardia, or AVNRT.
The researchers say this is the first study to try the technique in children, and it has the potential to improve success rates in treating children with the disorder.
Lindsey Malloy, D.O., lead researcher and a cardiology fellow and researcher at University of Iowa Children’s Hospital in Iowa City
Stories available for linking, quoting, excerpting, reprinting
Stories appearing on blog.heart.org under the "By American Heart Association News" byline are available for linking, quoting, excerpting and reprinting. Copyright is owned or held by the American Heart Association, Inc., and all rights are reserved. Permission is granted, at no cost and without need for further request, to link to, quote, excerpt or reprint from these stories in any medium as long as no text is altered and proper attribution is made to the American Heart Association. Additional conditions may apply to the use of these stories in printed materials.
American Heart Association additional conditions for linking, quoting, excerpting, reprinting stories in print media
- A credit line of American Heart Association News must be prominently placed on the page in which the American Heart Association materials appear.
- The American Heart Association logo and service marks may only be used if they appear on the materials requested.
- Stories reprinted may be edited for length, but no other deletions, alterations or other changes may be made without the prior written consent of the American Heart Association.
- Artwork labeled "American Heart Association" may be reprinted, but other artwork may not. For artwork permission questions, contact firstname.lastname@example.org
- Stories reprinted may not be placed adjacent to any advertisement, photo, graphic or other content that could be considered inappropriate by the American Heart Association. For questions about whether content is inappropriate, contact email@example.com.
- Stories may not be displayed in any way that gives the appearance that the American Heart Association endorses (implied or otherwise) or is affiliated with any product, service or company.