ABSTRACT
Early delivery, immediate ventricular pacing, and inotropic support have failed to
improve the outcome of hydropic fetuses with congenital complete atrioventricular
block. On detection of hydrops, two fetuses were treated with maternally administered
digoxin and furosemide with prompt and sustained resolution of intrathoracic fluid
accumulations. Clearance of serosal fluid collections may prevent pulmonary hypoplasia
and improve cardiac function. Before proceeding with premature delivery in such patients,
a brief trial of transplacental anticongestive therapy is indicated.
