Premature end of service of implantable cardioverter-defibrillator by magnetic interference with left-ventricular assist device

Figures

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  Figure 1. Development of implantable cardioverter-defibrillator (ICD) battery voltage (V) of the patient compared to normal battery depletion curve as reported from the manufacturer. EOS = end of service (day 141); ERI = elective replacement indicator (day 99).

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  Figure 2. Chest radiograph of the patient. A: Initial radiograph before generator replacement and implantation of a new right ventricular lead (CRT-D: Maximo II; LVAD: HVAD; both Medtronic, Minneapolis, MN). ∗ Distance between the devices: 42 mm. B: Postoperative radiograph after operative revision indicating closer proximity of the implanted devices (CRT-D: Amplia CRT-D; LVAD: HVAD; both Medtronic, Minneapolis, MN). # Distance between the devices: 19 mm.

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  Figure 3. Photographs of the patient’s typical body position in the wheelchair promoting closer proximity of the implanted devices.