Navigation Links
Magnets in iPad2 May Alter Settings on Brain Shunt Devices: Study
Date:6/26/2012

By Maureen Salamon
HealthDay Reporter

TUESDAY, June 26 (HealthDay News) -- Magnets embedded in the Apple iPad 2 can interfere with the settings of magnetically programmable shunt valves, which are critical devices to drain excess fluid from the brains of those with hydrocephalus and other conditions, a new study suggests.

Researchers from the University of Michigan decided to investigate the phenomenon after a 4-month-old patient with hydrocephalus was found to have a shunt malfunction three weeks after getting one implanted. The baby's mother had fed the child and used the iPad simultaneously, inadvertently placing the baby's head close to the tablet computer.

"Most times, technology has helped medical care significantly. This is one case . . . where we have to be concerned about these things," said Dr. Salvatore Insinga, a neurosurgeon at the Cushing Neuroscience Institute in Manhasset, N.Y., who was not involved in the study. "We do know programmable shunts are susceptible to magnetic field fluctuations -- MRIs, for instance, can change the settings of the shunts. [But] I don't think we know all of the devices that have a magnetic influence on these things."

The study is published online June 26 in advance of the August print issue of Journal of Neurosurgery: Pediatrics.

Hydrocephaly, brain swelling caused by the build-up of cerebrospinal fluid, can occur in children and adults due to a variety of medical conditions. Medical-grade magnets are used to change the settings on programmable shunt valves that allow the passage of extra fluid to other parts of the body.

Study author Dr. Cormac Maher, a pediatric neurosurgeon at the University of Michigan, and his colleagues tested the iPad 2 with and without an Apple Smart Cover, which contains additional magnets and is the most frequently used cover for the tablet.

Exposing 10 programmable shunt valves to the iPad/cover for 10 seconds at five different distances, Maher found that the settings changed in 58 percent of the valves at distances between 0 and 1 cm (about 0.4 inches); the settings changed in 5 percent of valves when the exposure distances lengthened to between 1 and 2.5 cm (up to 1 inch). After exposure at distances between 2.5 and 5 cm (1 to 2 inches), the settings changed in just 1 percent of shunt valves; no changes were observed at higher distances.

"Once we know a valve is dialed to an incorrect setting, it's easy to set back," Maher said, noting that his infant patient suffered no lasting effects. "The impact could potentially be serious if [the changed setting] is not recognized -- there could be complications from overdraining or underdraining."

Repeated calls to Apple headquarters in Cupertino, Calif., for comment on the findings were not returned.

Maher and other experts cautioned that those with programmable shunt valves, as well as their parents and/or caregivers, should be aware that an iPad placed within a couple of inches of patients' heads could produce such an effect.

"If a child uses an iPad, that's OK; they just shouldn't hold it near their head or sleep with it," Maher advised. "Routine use should be OK, people just need to be smart about it."

Dr. Jonathan Zhang, a neurosurgeon at Methodist Neurological Institute in Houston, recommended that more research be done to confirm a cause-and-effect between the iPad and programmable shunt valves.

"This is certainly a very intriguing and interesting finding," Zhang said. "As we use more and more technology, the world is changing and we certainly need to incorporate new findings into clinical practice. This is a cautionary tale."

More information

The National Institute of Neurological Disorders and Stroke has more on hydrocephalus.

SOURCES: Salvatore Insinga, M.D., neurosurgeon, Cushing Neuroscience Institute, Manhasset, N.Y.; Jonathan Zhang, neurosurgeon, Methodist Neurological Institute, Houston; Cormac Maher, M.D., pediatric neurosurgeon, University of Michigan, Ann Arbor; June 26, 2012, Journal of Neurosurgery: Pediatrics, online


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Magnets may help prevent rare complication of spinal anesthesia
2. Moveable Magnets Used to Forge Gastric Bypass in Pigs
3. Approval of Safer Alternative to Pradaxa Delayed by FDA
4. The Law Office of Wolf & Pravato, The Alters Firm and Morelli Ratner File Class Action Lawsuit Against Global Spray Foam Manufacturer
5. Heavy Duty Alternators and Starters Expert Elreg Distributors Ltd. Meets Needs of International Market with Launch of Spanish Website
6. Study Supports Value of Sigmoidoscopy, an Alternative to Colonoscopy
7. Molecular subtypes and genetic alterations may determine response to lung cancer therapy
8. Procedure gives patients with A-fib who cant take blood thinners alternative to reduce stroke
9. Live imaging shows response to cancer drugs can be boosted by altering tumor microenvironment
10. Brain Falters Near End of Life, but Games, Puzzles Might Slow Decline
11. Link between brain insulin resistance, neuronal stress in worsening Alzheimers disease
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Magnets in iPad2 May Alter Settings on Brain Shunt Devices: Study
(Date:7/22/2017)... ... July 21, 2017 , ... Reassured For Life ( http://www.reassured.ca ), is now ... owner and licensed broker Nerissa McNaughton. “I launched this firm because I know talking ... a very necessary conversation. I make it easy. As a broker I have access ...
(Date:7/21/2017)... (PRWEB) , ... July 21, 2017 , ... "As a ... a lot of pleural catheters available on the market," said an inventor from Center ... comfort and safety for the patient." , He developed the patent-pending PLEURAL SAFE-t-STAT CATHETER ...
(Date:7/21/2017)... ... 2017 , ... The Ellis Agency, an eastern Georgie provider of insurance management ... wide charity event with the goal of bringing in support for epilepsy patients in ... with epilepsy, recently launched a charity campaign of her own by donating her birthday ...
(Date:7/21/2017)... ... July 21, 2017 , ... ... selected to renovate and improve the Ramsey County Medical Examiners Facility located in ... Hospital, the $2.5 million project is scheduled to start in late 2017/early 2018. ...
(Date:7/21/2017)... ... July 21, 2017 , ... Hospital M&A activity slowed ... . The number of hospital acquisitions rose to 23 in the second quarter, up ... up 15% from the 20 announced deals in the year-ago second quarter. Only four ...
Breaking Medicine News(10 mins):
(Date:7/17/2017)... July 17, 2017  MedX Holdings, Inc., the manufacturer ... strengthening and rehabilitation equipment, today announced the national roll ... is considered the gold standard for the treatment of ... medical strengthening equipment. ... the physician or practice who prescribe the MedX Home ...
(Date:7/13/2017)... , July 13, 2017 RK Logistics Group, ... of Pharmacy certification for its Fremont, CA ... solutions in the Tri-Valley and San Jose ... City of Fremont , with its Fremont Innovation ... to provide such a powerful resource to the hundreds of ...
(Date:7/11/2017)... 2017  Bayer has awarded grants totaling more than $2 ... its prestigious Bayer Hemophilia Awards Program (BHAP). Four U.S. clinicians ... and Uniformed Services University of the Health Sciences ... Grant recipients were announced last night during a reception at ... Berlin, Germany . ...
Breaking Medicine Technology: