Key result
In an 83-year-old man with an ICD, far-field ventricular electrograms recorded alternating QRS morphologies and As-Vs intervals, complicating the device diagnosis of ventricular tachycardia.
Population
83-year-old man with coronary artery disease and an implantable cardioverter defibrillator implanted for…
Design
Case_report
Authors
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Alternans in far-field ventricular electrograms may trigger inappropriate ICD shocks; hypothesis-generating for enhanced arrhythmia discrimination algorithms.
Case Report (n=1)
This case highlights the potential for alternans in far-field QRS complexes and ventricular electrograms to cause inappropriate ICD therapy.
Barold et al. (2015) conducted a case report in Coronary artery disease and spontaneous ventricular tachycardia (n=1). Implantable cardioverter defibrillator (ICD) was evaluated on Mechanism of alternans and device diagnosis of VT. In an 83-year-old man with an ICD, far-field ventricular electrograms recorded alternating QRS morphologies and As-Vs intervals, complicating the device diagnosis of ventricular tachycardia.
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