Key result
High energy endocardial/extrathoracic defibrillation via the implanted ICD transvenous defibrillation electrode successfully terminated refractory ventricular fibrillation in 2 out of 2 patients without complications.
Why the study?
Does high energy endocardial/extrathoracic defibrillation via implanted ICD TDE terminate refractory VF during ICD implantation?
Observational (n=20)
Does high energy endocardial/extrathoracic defibrillation via implanted ICD TDE terminate refractory VF during ICD implantation?
High energy endocardial/extrathoracic defibrillation via an implanted ICD transvenous electrode can successfully terminate refractory VF during ICD implantation without complications.
May offer rescue for refractory VF at ICD implant; hypothesis-generating and requires prospective validation before wider use.
Implantable cardioverter defibrillators (ICDs) are being implanted in increasing numbers. At intraoperative defibrillation threshold tests refractory ventricular fibrillation (VF) requiring emergency open chest resuscitation is a major concern during implantation of nonthoracotomy ICD lead systems. A new method of high energy endocardial/extrathoracic defibrillation via the implanted ICD transvenous defibrillation electrode (TDE) was used to terminate refractory VF. During implantation of ICD with TDE in 20 patients refractory VF occurred in two patients. The arrhythmia was terminated with endocardial/extrathoracic defibrillation in both cases, and no complications were observed.
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Pitschner et al. (1993) conducted an observational in Refractory ventricular fibrillation during ICD implantation (n=20). High energy endocardial/extrathoracic defibrillation via implanted ICD transvenous defibrillation electrode (TDE) was evaluated on Termination of refractory ventricular fibrillation and occurrence of complications. High energy endocardial/extrathoracic defibrillation via the implanted ICD transvenous defibrillation electrode successfully terminated refractory ventricular fibrillation in 2 out of 2 patients without complications.
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