Vol 67, No 7 (2009)
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Published online: 2009-07-17

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Invasive electrophysiology
Ventricular bigeminy as a cause of CRT inefficacy and inappropriate cardioverter-defibrillator intervention

Artur Oręziak, Andrzej Przybylski, Franciszek Walczak
DOI: 10.33963/v.kp.80100
Kardiol Pol 2009;67(7):807-811.

Abstract

Double counting of ventricular beats is not only one of the cause of an inappropriate detection of ventricular arrhythmias but a reason of lost of resynchronisation therapy. Sensing disturbances often creates the need for reprogramming of the device or additional pharmacotherapy and procedures.
We present a case of 76-year-old man with CRT-D and inappropriate detection and intervention due to ventricular bigeminy. Fortunately, change of device program, potassium and magnesium supplementation was successful, without necessity of RF ablation of the ventricular ectopic beats.

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