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Undetected ventricular fibrillation in a single-chamber implantable cardioverter- defibrillator: When the far-field channel sees more than the intraventricular.

Published byAlessandra Mariotti Modified over 5 years ago

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Presentation on theme: "Undetected ventricular fibrillation in a single-chamber implantable cardioverter- defibrillator: When the far-field channel sees more than the intraventricular."— Presentation transcript:

1 Undetected ventricular fibrillation in a single-chamber implantable cardioverter- defibrillator: When the far-field channel sees more than the intraventricular channel  Milena Kubickova, MD, Pavel Cervinka, MD, PhD, FESC, FSCAI, Andreas Kucher, MSc, PhD, Zdenek Nastoupil, Roland X. Stroobandt, MD, PhD, FHRS  HeartRhythm Case Reports  Volume 2, Issue 4, Pages (July 2016) DOI: /j.hrcr Copyright © 2016 Heart Rhythm Society Terms and Conditions

2 Figure 1 Fluoroscopic anterior-posterior view of the lead position.
HeartRhythm Case Reports 2016 2, DOI: ( /j.hrcr ) Copyright © 2016 Heart Rhythm Society Terms and Conditions

3 Figure 2 Ventricular undersensing and tachycardia rate in right ventricle below the ventricular fibrillation intervention rate in a patient with an Itrevia 7 VR-T DX device. The marker channels are on top (A = atrial, V = right ventricular). The electrogram channels are below the marker channels (far-field [FF], A, and V). A: Ventricular undersensing because of signal amplitudes below the minimum sensing threshold of 0.8 mV. Ventricular undersensing led to ventricular pacing at the lower rate interval of 1500 ms. B: RR intervals vary from 294 to 368 ms. The rate of the tachycardia shown in the FF channel is faster than the rate in the right ventricular channel. HeartRhythm Case Reports 2016 2, DOI: ( /j.hrcr ) Copyright © 2016 Heart Rhythm Society Terms and Conditions

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