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The HAV pattern in pediatric patients with atrioventricular node reentrant tachycardia

Jose M Moltedo1, Mauricio S Abello1, David Doiny1

  • 1Pediatric Electrophysiology Section, Pediatric Cardiology Section, Clínica y Maternidad Suizo Argentina, Ciudad Autonoma de Buenos Aires, Argentina; Electrophysiology Section, Sanatorio Finochietto, Ciudad Buenos Aires, Argentina.

Indian Pacing and Electrophysiology Journal
|June 20, 2020
PubMed

Insights

The His-Atrial-Ventricular (HAV) pattern is common in pediatric patients with atrioventricular node reentry (AVNRT), found in 74% of cases. This pattern is more prevalent in younger children with AVNRT.

Area of Science:

  • Pediatric Cardiology
  • Electrophysiology
  • Cardiac Arrhythmias

Background:

  • Atrioventricular node reentry (AVNRT) is a common cause of supraventricular tachycardia in children.
  • Accurate electrophysiological mapping is crucial for diagnosing and managing AVNRT.

Purpose of the Study:

  • To determine the prevalence of the His-Atrial-Ventricular (HAV) pattern during typical AVNRT in pediatric patients.
  • To investigate the association between the HAV pattern and patient age.

Main Methods:

  • Retrospective analysis of pediatric electrophysiology study (EPS) data from two institutions.
  • Inclusion of patients diagnosed with AVNRT.
  • Assessment of demographic, clinical, and EPS findings, including the presence of an HAV pattern.

Main Results:

  • Thirty-nine pediatric patients with AVNRT were analyzed.
  • A His-Atrial-Ventricular (HAV) pattern was observed in 74% of patients.
  • The HAV pattern was present in 100% of patients younger than 8 years old.

Conclusions:

  • The His-Atrial-Ventricular (HAV) pattern is a frequent finding in pediatric AVNRT patients.
  • The prevalence of the HAV pattern is significantly higher in younger pediatric patients.
  • This pattern may serve as an important electrophysiological marker in pediatric AVNRT.
Abstract

Keywords:
Supraventricular tachycardia- AV nodal Reentry tachycardia-children

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