Fetal tachyarrhythmia with 1:1 atrioventricular conduction. Adenosine infusion in the umbilical vein as a diagnostic test.
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.
Leiria
T L
TL
Instituto de Cardiologia do Rio Grande do Sul, Fundação Universitária de Cardiologia, Porto Alegre, RS, Brazil.
Lima
G G
GG
Dillenburg
R F
RF
Zielinsky
P
P
D000241:Adenosine / Q000008:administration & dosage; D000328:Adult; D000889:Anti-Arrhythmia Agents / Q000008:administration & dosage; D004077:Digoxin / Q000008:administration & dosage; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging* / Q000188:drug therapy; D006801:Humans; D007275:Injections, Intravenous; D011247:Pregnancy; D013617:Tachycardia, Supraventricular / Q000000981:diagnostic imaging* / Q000188:drug therapy; D016216:Ultrasonography, Prenatal / Q000379:methods*; D014471:Umbilical Veins
D000889:Anti-Arrhythmia Agents; D004077:Digoxin; D000241:Adenosine