Fetal tachyarrhythmia with 1:1 atrioventricular conduction. Adenosine infusion in the umbilical vein as a diagnostic test

Arq Bras Cardiol. 2000 Jul;75(1):65-8. doi: 10.1590/s0066-782x2000000700007.
[Article in English, Portuguese]

Abstract

This is the report of a case of fetal tachyarrhythmia with 1:1 atrioventricular conduction detected by pre-natal echocardiography in a fetus at 25-weeks gestation. Adenosine infusion via cordocentesis was performed as a diagnostic test to differentiate between atrioventricular nodal reentrant supraventricular tachyarrhythmia and atrial flutter. After infusion, transient 2:1 atrioventricular dissociation was obtained and the diagnosis of atrial flutter was made. Transplacental therapy with digoxin and amiodarone was then successfully used.

Publication types

  • Case Reports

MeSH terms

  • Adenosine* / administration & dosage
  • Adult
  • Anti-Arrhythmia Agents* / administration & dosage
  • Digoxin / administration & dosage
  • Female
  • Fetal Diseases / diagnostic imaging*
  • Fetal Diseases / drug therapy
  • Humans
  • Injections, Intravenous
  • Pregnancy
  • Tachycardia, Supraventricular / diagnostic imaging*
  • Tachycardia, Supraventricular / drug therapy
  • Ultrasonography, Prenatal / methods*
  • Umbilical Veins

Substances

  • Anti-Arrhythmia Agents
  • Digoxin
  • Adenosine