Key result
Patient-activated pacemaker requires additional pacing stimuli to terminate ventricular tachycardia after spontaneous window changes.
Case Report (n=1)
This case highlights the potential for spontaneous changes in the tachycardia terminating window and underscores the need for versatile programming in antitachycardia pacemaker systems.
Answers are grounded in this paper and cite their sources.
Spontaneous shifts in antitachycardia pacing windows may require adaptive modes; this case report leaves open the need for versatile device programming.
A patient who received a patient-activated pacemaker system for termination of paroxysmal, drug-resistant, ventricular tachycardia is described. During the pre-implant invasive electrophysiological (EP) study and the three post-implant non-invasive EP studies, tachycardias were easily and reproducibly terminated by two stimuli using the interval scanning mode. On the fourth day post-implant, this pacing mode no longer terminated tachycardia at rest. A new pacing mode using more stimuli was then found to terminate the tachycardia reproducibly under various physiological conditions. This case report demonstrated a spontaneous change in the tachycardia terminating window and the usefulness of versatility in antitachycardia pacemaker systems.
No takes yet. Share an insight, caveat, or question.
Dulk et al. (1984) conducted a case report in Paroxysmal, drug-resistant, ventricular tachycardia (n=1). Patient-activated pacemaker system was evaluated on Termination of tachycardia. A patient-activated pacemaker system demonstrated a spontaneous change in the tachycardia terminating window, requiring a new pacing mode with more stimuli to terminate the tachycardia.
Synapse has enriched 10 related papers. Consider them for comparative context: