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Related Experiment Videos

Sinus node reentrant tachycardia in a neonate.

S Ozer1, M Schaffer

  • 1Department of Pediatrics, Section of Pediatric Cardiology, University of Colorado School of Medicine and Children's Hospital, Denver, Colorado, USA.

Pacing and Clinical Electrophysiology : PACE
|July 14, 2001
PubMed
Summary

A neonate experienced paroxysmal atrial tachycardia, diagnosed as sinus node reentrant tachycardia. Digoxin effectively suppressed the arrhythmia, with the child remaining arrhythmia-free for years.

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Area of Science:

  • Pediatric Cardiology
  • Electrophysiology
  • Neonatal Medicine

Background:

  • Neonatal paroxysmal atrial tachycardia requires accurate diagnosis and effective management.
  • Sinus node reentrant tachycardia is a rare but significant cause of supraventricular tachycardia in neonates.

Observation:

  • A neonate presented with recurrent episodes of paroxysmal atrial tachycardia.
  • Transesophageal electrophysiological study confirmed sinus node reentrant tachycardia, inducible via programmed electrical stimulation.
  • Adenosine administration transiently terminated the tachycardia.

Findings:

  • Empiric digoxin therapy demonstrated efficacy in suppressing the sinus node reentrant tachycardia.
  • Tachycardia recurrence upon digoxin discontinuation at 6 weeks necessitated re-treatment.

Related Experiment Videos

  • Prolonged sinus node recovery times were noted at 20 months, with no inducible arrhythmias.
  • The child remained free of arrhythmias up to 4 years of age.

    • Implications:

    • Digoxin can be an effective treatment for neonatal sinus node reentrant tachycardia.
    • Long-term follow-up is crucial to assess arrhythmia recurrence and guide management.
    • Electrophysiological studies are vital for diagnosing and understanding complex neonatal arrhythmias.