Vol 68, No 5 (2010)
Invasive electrophysiology
Published online: 2010-05-20
Non-invasive electrophysiologic study and radiofrequency current ablation of tachycardia responsible for numerous inappropriate ICD interventions in patient with post-infarction dilated cardiomyopathy
DOI: 10.33963/v.kp.79754
Kardiol Pol 2010;68(5):599-603.
Abstract
We present a case of 75-year-old man with numerous inappropriate interventions of an implanted cardioverter-defibrillator
(ICD). In this patient with ischaemic cardiomyopathy, ICD was implanted for primary prevention of sudden cardiac death
following recurrent syncope. ICD interrogation and non-invasive electrophysiologic study (NIPS) confirmed a risk of reentry-mediated tachycardia and excluded the presence of a manifest or concealed accessory pathway. Invasive electrophysiologic
study revealed a wide zone that triggered atrioventricular nodal reentrant tachycardia, and ablation of the slow pathway
resulted in complete remission of the arrhythmia. NIPS performed using atrial and ventricular ICD leads and subsequent ICD
interrogation confirmed long-term effectiveness of the procedure. At the same time, clinical improvement of heart failure
was seen, leading to a suspicion of tachycardia-induced cardiomyopathy coexisting with ischaemic cardiomyopathy.
Kardiol Pol 2010; 68, 5: 599-603
Kardiol Pol 2010; 68, 5: 599-603
Keywords: cardioverter-defibrillatorNIPStachycardia-induced cardiomyopathy