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Programmed ventricular stimulation for arrhythmia risk prediction in patients with idiopathic dilated cardiomyopathy and nonsustained ventricular tachycardia

^a Clinical Electrophysiology Laboratory, Department of Cardiology, Hospital of the Philipps-University of Marburg, Marburg, Germany

View larger version (62K): [in a new window]   Figure 1 Stored electrogram (CPI Ventak P2) of spontaneous polymorphic VT terminated with a 34-J shock in a patient with IDC and spontaneous nonsustained VT. Of note, sustained monomorphic VT had been induced in this patient.

View larger version (29K): [in a new window]   Figure 2 Stored electrogram and marker channel (Medtronic 7202) of spontaneous ventricular flutter (300–350 bpm) that was terminated with a 34-J shock. Of note, no sustained ventricular arrhythmia was inducible with up to three extrastimuli at programmed stimulation in this patient with IDC who presented with asymptomatic nonsustained VT on Holter. Abbreviations used in the marker channel: CD = cardioversion pulse; FD = fibrillation detection; FS = fibrillation sense; VS = normal sense.

View larger version (85K): [in a new window]   Figure 3 Stored electrogram and marker channel (Medtronic 7220) of spontaneous VT (195 bpm) that was terminated by burst pacing. For abbreviations used in the marker channel, see legend to Figure 2.