Defibrillation threshold testing

Stepheson EA, Cecchin F, Walsh EP, and Berul CL Utility of routine follow-up defibrillator threshold testing in congenial heart disease and pediatric populations. J Cardiovasc Electrophysiol 2005 16 69-73. 

Ventricular stimulation by NIPS is done using the same protocols that are employed for standard invasive electrophysiologic testing (46). If ventricular tachycardia is induced, the effectiveness of ATP protocols is assessed. At the end of the study the ability of the ICD to detect and treat ventricular fibrillation can be evaluated. Ventricular fibrillation can usually be induced by ultrarapid ventricular pacing (30-50 stimuli/s) or an appropriately timed low-energy shock on the T wave. The defibrillation threshold can be evaluated using the methods outlined in Chap. 8. 

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