Why the study?
Does isoproterenol infusion expose retrograde conduction and tachycardia induction in patients with apparent unidirectional anterogradely conducting accessory pathways?
Population
18 patients with apparent unidirectional anterogradely conducting accessory pathways
Comparison
Isoproterenol infusion during electrophysiologic… vs Baseline drug-free state
Design
Cohort
Authors
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Isoproterenol rarely restores retrograde conduction; hypothesis-generating for selective use in exercise-induced cases but should not yet change practice.
Does isoproterenol infusion expose retrograde conduction and tachycardia induction in patients with apparent unidirectional anterogradely conducting accessory pathways?
Isoproterenol rarely restores retrograde conduction in patients with apparent unidirectional anterograde accessory pathways, and is most likely to do so in those with clinically documented exercise-induced tachycardia.
LI et al. (1995) studied this question.
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