© 2005 The European Society of Cardiology. Published by Elsevier Ltd. All rights reserved.
CASE REPORT
Inappropriate implantable cardioverterdefibrillator shock due to external alternating current leak: Report of two cases
Princess Margaret Hospital, Department of Medicine and Geriatrics 2-10 Princess Margaret Hospital Road, Lai Chi Kok Kowloon, Hong Kong
Two cases are reported of inappropriate implantable cardioverterdefibrillator shocks due to external alternating current leak. Electromagnetic interference (EMI) can mimic cardiac signals and cause inappropriate implantable cardioverterdefibrillator (ICD) shocks. EMI can arise from the normal functioning of electrical appliances or from alternating current leak. The two cases had inappropriate ICD shocks due to alternating current leak from a power drill in one and a washing machine in the other. The need for detailed advice on handling electrical equipment is emphasized.
Key Words: implantable cardioverterdefibrillator, electromagnetic interference, alternating current
*Corresponding author. Tel.: +852 29903322; fax: +852 29903329. E-mail address: nywlchan{at}yahoo.com (N.Y. Chan).
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