Atrial tachy-arrhythmias associated with massive edema in the newborn.

Anasarca or massive edema of the newborn (hydrops fetalis) and atrial tachy-arrhythmias are frequently seen intheneonatalperiod;however, an association between the two is not well recognized. This paper reports three infants less than one week of age who demonstrated such an association. We have also reviewed the literature of paroxysmal supraventricular tachycardia (PST) and atrial flutter (AF) ininfants less than one week of age to evaluate the relationship between the occurrence of tachyarrhythmia and edema.