Key result
Single and double ventricular extrastimuli confirmed the resetting phenomenon in two cases of re-entrant ventricular tachycardia, demonstrating it cannot be used to determine the mechanism of VT.
Why the study?
Does single and double ventricular extrastimuli reset the tachycardia cycle in recurrent sustained ventricular tachycardia?
Population
2 cases with recurrent sustained ventricular tachycardia (VT) due to re-entry
Design
Case_series
Authors
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Response patterns may aid VT mechanism assessment in select cases; leaves open validation before broader adoption.
Case Report (n=2)
Does single and double ventricular extrastimuli reset the tachycardia cycle in recurrent sustained ventricular tachycardia?
The resetting phenomenon by ventricular extrastimuli occurs in re-entrant VT and cannot be used as a sole criterion to determine the underlying mechanism of VT.
Inoue et al. (1984) conducted a case report in Recurrent sustained ventricular tachycardia (n=2). Single and double ventricular extrastimuli was evaluated on Response pattern to extrastimuli during tachycardia (resetting phenomenon). Single and double ventricular extrastimuli confirmed the resetting phenomenon in two cases of re-entrant ventricular tachycardia, demonstrating it cannot be used to determine the mechanism of VT.
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