For determining the
defibrillation threshold, the verification technique was used.
Since early experiences in ICD insertion led to sudden death due to ineffective defibrillation shock delivery,
defibrillation threshold (DFT) testing became a standard of care for the elementary/primitive devices [7].
Verification of defibrillation efficacy by
defibrillation threshold (DFT) testing during ICD implantation is the current standard.
In addition to adverse events, antiarrhythmic drugs can interfere with the device function by increasing, rather than decreasing, the
defibrillation threshold (JAMA 2006;295:211-3).