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Published on: February 28, 2012
Overcoming electromagnetic interference by LVADs on ICD function by shielding the ICD programmer wand and extension
Angelo Biviano1, Donna Mancini, Yoshifumi Naka
1NewYork-Presbyterian Hospital, Columbia University Medical Center, New York, New York 10027, USA. ab542@columbia.edu
Pacing and Clinical Electrophysiology : PACE
|July 4, 2009
Summary
Electromagnetic interference from left ventricular assist devices (LVADs) can impair implantable cardioverter-defibrillator (ICD) function. Shielding the ICD programmer wand and extension cable successfully restored communication in two patients.
Area of Science:
- Cardiology
- Biomedical Engineering
Background:
- Left ventricular assist devices (LVADs) are crucial for end-stage heart failure.
- Implantable cardioverter-defibrillators (ICDs) are vital for managing cardiomyopathy and heart failure.
Observation:
- Electromagnetic interference (EMI) from LVADs can disrupt ICD telemetry.
- This interference impairs communication between the ICD and its programmer.
- Previous solutions involved device explantation or generator replacement.
Findings:
- Two patients with HeartMate II LVADs experienced ICD programming impairment.
- Placing aluminum shielding around the ICD programmer wand resolved the issue.
- Steel shielding around the ICD extension cable also proved effective.
Implications:
- Shielding offers a non-invasive method to overcome LVAD-induced ICD programming interference.
- This approach may prevent unnecessary device explantation or replacement.
- Ensures continued optimal management of patients with both LVADs and ICDs.
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