Navigation Links
iPods and similar devices found not to affect pacemaker function
Date:3/28/2008

Last May, a widely reported study concluded that errant electronic noise from iPods can cause implantable cardiac pacemakers to malfunction. This just didnt sound right to the cardiac electrophysiologists at Childrens Hospital Boston, whove seen hundreds of children, teens and young adults with heart conditions requiring pacemakers. Many of our pacemaker patients have iPods and other digital music players, and weve never seen any problem, says Charles Berul, MD, director of the Pacemaker Service at Childrens. But kids and parents bring up this concern all the time, prompting us to do our own study.

Between September and December, 2007, Gregory Webster, MD, a cardiac fellow in training at Childrens, along with the electrophysiology nurses and physicians, ran tests on 51 patients coming in for appointments. Whereas last years study was done in patients averaging 77 years of age, the average age in the Childrens study was 22 (ranging from 6 to 60). All patients had active pacemakers or implantable cardioverter-defibrillators (ICDs), which were tested against four digital music players two kinds of iPods (Apple Nano and Apple Video), SanDisk Sansa and Microsoft Zune. All patients were lying down during the tests (in case an arrhythmia occurred, causing them to faint), and each digital player was placed directly over the pacemaker or ICD.

As reported in the April 2008 issue of the journal Heart Rhythm, accompanied by an editorial, there was no interference with intrinsic device functioning patients EKG (electrocardiographic) recordings showed no change in any of 255 separate tests, and no patients had symptoms. This provides reassuring evidence that should allay the fears of people using iPods and other digital music players, says Berul, the studys senior investigator.

However, in 41 percent of patients, the music players interfered with telemetry, or communications between the programmer and the pacemaker or ICD itself. (The programmer is a computerized device used by physicians to check and recalibrate the pacemaker/ICD patients do not carry it.) This interference, picked up in 29 of 204 tests, went away when the digital player was moved six inches or more from the device, and did not compromise device function. The larger digital players (Zune and Apple Video) caused more interference with telemetry than the small players.

Patients should not use digital music players while the doctor is trying to reprogram their device, Webster and the electrophysiology team conclude. If the iPod is right in the field, the programmer might not be able to communicate with the pacemaker or ICD effectively, Webster says.

The findings of interference with the pacemaker itself, reported last May, are published and updated in the same issue of Heart Rhythm. The editorial discusses possible reasons for the discrepancy between the two studies, which mainly relate to the testing methods and interpretation of the pacemaker recordings. Importantly, the music players did not stop pacemakers from pacing (regulating the heartbeat) in either the Childrens study or the previously reported study, though the previous study did find interference with pacemaker sensing.

Berul and colleagues are reassured by their own findings, but acknowledge that their testing was only short-term. We cant conclude that its completely safe to have an iPod right on top of the device for hours at a time, Berul says. Thats why we suggest the precaution of keeping it at least six inches away.


'/>"/>

Contact: Keri Stedman
keri.stedman@childrens.harvard.edu
617-919-3110
Children's Hospital Boston
Source:Eurekalert

Related medicine news :

1. IPods Dont Interfere With Pacemakers, Study Shows
2. IPods Dont Interfere With Heart Pacemakers
3. Introspective experiences inform inferences about similar people -- but not dissimilar
4. Broad Stakeholder Coalition Concludes that the Pathway for Biosimilars Act Fails to Ensure Timely Access to Safe, Affordable Biogeneric Medicines for Patients
5. Satisfaction After Fibroid Embolization Similar to Hysterectomy
6. Cost of Massachusetts Health Insurance Mandate to Rise 85% -- $400 Mil -- in 09; CA Mandate Proposal Certain to Face Similar Increases
7. Light powered platinum more targeted and 80 times more powerful than similar cancer treatments
8. Mini transplant patients outcomes similar using related and unrelated donor cells
9. ENDEAVOR IV achieves primary endpoint, demonstrates similar safety profile compared to Taxus stent
10. Cancer patients, spouses report similar emotional distress, U-M study finds
11. Cancer patients, spouses report similar emotional distress, U-M study finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... , ... June 25, 2016 , ... First Choice ... States, named Dr. Sesan Ogunleye, as the Medical Director of its new Mesquite-Samuell Farm ... Medical Director of our new Mesquite location,” said Dr. James M. Muzzarelli, Executive Medical ...
(Date:6/25/2016)... , ... June 25, 2016 , ... On Friday, June ... a Bronze Wellness at Work award to iHire in recognition of their exemplary accomplishments ... of the 7th annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott ...
(Date:6/24/2016)... ... June 24, 2016 , ... Those who have experienced ... feelings, many turn to unhealthy avenues, such as drug or alcohol abuse, as a ... has released tools for healthy coping following a traumatic event. , Trauma sufferers tend ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... ... Conference and Scientific Sessions in Dallas that it will receive two significant new ... the grants came as PHA marked its 25th anniversary by recognizing patients, medical ...
(Date:6/24/2016)... San Diego, CA (PRWEB) , ... June 24, 2016 , ... ... up with the American Cancer Society and the Road To Recovery® program to drive ... care to seniors and other adults to ensure the highest quality of life and ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... India , June 24, 2016 ... Needles Market by Type (Standard Pen Needles, Safety Pen ... Therapy (Insulin, GLP-1, Growth Hormone), Mode of Purchase (Retail, ... by MarketsandMarkets, This report studies the market for the ... expected to reach USD 2.81 Billion by 2021 from ...
(Date:6/24/2016)... , Belgium , June ... MKT: VNRX), today announced the appointment of Dr. ... of Directors as a Non-Executive Director, effective June ... Company,s Audit, Compensation and Nominations and Governance Committees.  ... Dr. Futcher will provide independent expertise and strategic ...
(Date:6/23/2016)...  MedSource announced today that it has selected ... of choice.  This latest decision demonstrates MedSource,s commitment ... clients by offering a state-of-the-art electronic data capture ... as the EDC platform of choice in exchange ... has long been a preferred EDC platform by ...
Breaking Medicine Technology: