Why the study?
What are the electrophysiologic changes in accessory AV connections over time in infants with paroxysmal atrial tachycardia?
Population
35 infants, 7 to 27 months old, previously evaluated for paroxysmal atrial tachycardia using an accessory AV…
Comparison
Follow-up transesophageal electrophysiologic… vs Initial transesophageal electrophysiologic study…
Design
Cohort
Follow-up
Follow-up at 7 to 27 months of age (mean 12 months)
Authors
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Electrophysiologic properties of accessory pathways often evolve in infants with PAT; leaves open whether serial studies improve risk stratification.
What are the electrophysiologic changes in accessory AV connections over time in infants with paroxysmal atrial tachycardia?
Follow-up transesophageal studies in infants with PAT show that while inducibility remains high (68%), electrophysiologic properties of accessory pathways often change, including loss of antegrade preexcitation and slowing of retrograde conduction.
Benson et al. (1987) studied this question.
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