Electric currents generated by mobile phone chargers, particularly from lower-cost generic manufacturers, are causing serious injuries. Generic mobile phone chargers are less likely to meet established safety and quality tests than the brand counterparts, according to analysis and case studies in Annals of Emergency Medicine.
"Generic phone chargers can cause burns or electrocutions," said Carissa Bunke, MD, a pediatric resident physician with University of Michigan C.S. Mott Children's Hospital and lead study author. "Teens and adolescents are particularly at risk of injury due to their frequent mobile device use. They should be advised to not sleep with their phones or mobile devices charging in bed and avoid leaving the charger plugged in when it is not connected to a phone."
In one case cited, a patient was thrown from his bed by electric current. Another involved a 19-year old woman injured when the end of a charger touched her necklace, transmitting electric current and causing second degree burns. (image)
The analysis notes that for a study conducted by Electrical Safety First in the United Kingdom, Apple provided 64 generic chargers for safety testing. Fifty-eight percent of these generic chargers failed the electric strength test, indicating a breakdown of the insulation barrier. Another test cited in the analysis evaluated 400 generic iPhone chargers for electric shock safety risks. Of these, twenty-two samples were immediately damaged during the testing process and only three samples passed an electric strength test, a 99 percent failure rate.
"Even with a low-voltage device, if the current is high, then the electric shock can be severe," Dr. Bunke said.
Generally, patients with these types of injuries require medication to manage their pain and follow-up at their primary care provider or the burn center. In most instances, patients are checked for irregular heart rhythm or related side effects. Severe cases could involve extensive tissue damage or deep burns that require skin grafts. Complications from these types of injuries could include muscle breakdown, trouble breathing or airway damage, or cardiovascular injuries.
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Annals of Emergency Medicine is the peer-reviewed scientific journal for the American College of Emergency Physicians (ACEP), the national medical society representing emergency medicine. Through continuing education, research, public education and advocacy, ACEP advances emergency care on behalf of its 38,000 emergency physician members, and the more than 150 million Americans they treat on an annual basis. For more information, visit http://www.
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