A boy with fatigue and heart block: what's the mechanism?

Cardiol Young. 2024 Jun;34(6):1387-1389. doi: 10.1017/S1047951124024995. Epub 2024 Apr 29.

Abstract

When the atrioventricular node is damaged, accessory pathways can perform primary atrioventricular conduction but may spontaneously degrade during childhood. After surgical atrial septal defect repair during infancy, an adolescent male presented with fatigue due to iatrogenic complete atrioventricular node block with a degrading antegrade accessory pathway resulting in symptomatic bradyarrhythmia.

Keywords: Wolff-Parkinson-White; accessory pathway; complete heart block; third-degree AV block.

Publication types

  • Case Reports

MeSH terms

  • Accessory Atrioventricular Bundle / physiopathology
  • Accessory Atrioventricular Bundle / surgery
  • Adolescent
  • Atrioventricular Block / etiology
  • Atrioventricular Block / physiopathology
  • Atrioventricular Node / physiopathology
  • Atrioventricular Node / surgery
  • Electrocardiography*
  • Fatigue* / etiology
  • Heart Block / diagnosis
  • Heart Block / etiology
  • Heart Block / physiopathology
  • Heart Septal Defects, Atrial / complications
  • Heart Septal Defects, Atrial / surgery
  • Humans
  • Male