Key result
Single capture pacemaker stimulation terminated 57% of well-tolerated sustained ventricular tachycardia episodes, compared to 94% with programmed extrastimuli or rapid pacing.
Why the study?
Does single capture stimulation effectively terminate well-tolerated sustained ventricular tachycardia compared to rapid pacing?
Population
21 patients, 16 with coronary artery disease, able to tolerate ventricular tachycardia for several minutes
Comparison
Single capture stimulation vs 2-3 programmed extrastimuli or rapid pacing
Design
Case_series
Authors
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Single-capture VT pacing may be feasible in select cases; leaves open the need for prospective validation before clinical use.
Observational (n=21)
Does single capture stimulation effectively terminate well-tolerated sustained ventricular tachycardia compared to rapid pacing?
Absolute Event Rate: 57% vs 94%
Single capture stimulation is largely unpredictable and less effective than rapid pacing for terminating well-tolerated sustained ventricular tachycardia, limiting its long-term utility.
Fisher et al. (1983) conducted an observational in Well-tolerated sustained ventricular tachycardia (n=21). Single capture pacemaker stimulation vs. 2-3 programmed extrastimuli or rapid pacing was evaluated on Termination of ventricular tachycardia episodes. Single capture pacemaker stimulation terminated 57% of well-tolerated sustained ventricular tachycardia episodes, compared to 94% with programmed extrastimuli or rapid pacing.
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