RECENT INSIGHTS IN PROGRAMMED ELECTRICAL-STIMULATION FOR THE MANAGEMENT OF SUSTAINED VENTRICULAR ARRHYTHMIAS

After more than 20 years of clinical use, programmed electrical stimul ation for induction of cardiac arrhythmias remains an important clinic al and research tool. The procedure continues to undergo refinement bu t is not without controversy regarding its accuracy in predicting drug efficacy as determined by serial testing for suppression of ventricul ar tachyarrhythmias. Recent work has streamlined technical aspects of the procedure itself and promises to improve the selection of patients likely to benefit from such studies. Despite these advances, however, recent publications from the Electrophysiologic Study Versus Electroc ardiographic Monitoring trial raise fundamental questions about the ab ility of any current strategy to predict the efficacy of antiarrhythmi c drugs for the prevention of ventricular arrhythmias.