Abstract 651: An in Vitro Model to Test Possible Adverse Effects of Electrical Devices on ICD Function

TL;DRAbstract

Devices such as capsules swallowed to perform video endoscopy (VE-CAP) or cell phones equipped with Bluetooth® (BLUE) emit electrical signals which could have adverse effects on implantable cardiac defibrillators (ICDs). We sought to study whether signals from VE-CAP or BLUE could cause spurious inhibition of ventricular pacing (VP i ) or spurious detection of ventricular fibrillation (VF d ) in an in vitro model. A Medtronic D154ATG single chamber ICD was attached to a Medtronic 6948 lead and placed in a saline bath. The ICD was programmed to perform VVI pacing at 60 beats per minute (bpm) and to detect ventricular fibrillation as rates in excess of 188 bpm, with sensitivity programmed at 0.15 mV. ICD therapies were programmed off. A VE-CAP was placed in the saline bath 1 cm. and 6 cm. from the lead tip (LEAD) and then 1 cm. and 6 cm. from the ICD pulse generator (CAN). Marker channels recorded by wireless telemetry from the ICD were used to determine whether the VE-CAP caused interac

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