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Effects of Left Ventricular Assist Device Therapy on Ventricular Arrhythmias

Ohad Ziv, MD^_*, Jose Dizon, MD, FACC, Amit Thosani, MD^_*, Yoshifumi Naka, MD, PhD, Anthony R. Magnano, MD, MPH and Hasan Garan, MD, FACC^,_*

^_* Department of Medicine, Columbia University, New York, New York
Division of Cardiology, Columbia University, New York, New York
Department of Cardiothoracic Surgery, Columbia University, New York, New York.

View larger version (13K): [in a new window]   Figure 1 Of the 32 patients with post-left ventricular assist device (LVAD) ventricular tachyarrhythmias, prevalence of arrhythmia onset is shown as a function of days post-LVAD. VA = ventricular arrhythmia.

View larger version (107K): [in a new window]   Figure 2 An example of a 12-lead electrocardiogram tracing recorded during post-left ventricular assist device monomorphic ventricular tachycardia. The electrocardiogram algorithm applied to the frontal and the horizontal axes and the QRS morphology suggests a left ventricular apical site of origin.

View larger version (16K): [in a new window]   Figure 3 Cumulative survival curves show all-cause mortality after left ventricular assist device (LVAD) implantation in the group with and the group without post-LVAD ventricular tachyarrhythmia (VA).