ment was not successful, and possibly a longer duration of transplacental treatment would have been more appropriate. In our series the Wolff-Parkinson-White syndrome as the underlying cause of the tachycardia was found in three of the 22 infants who had a postnatal electrocardiogram. In summary p, ,hological atrial tachycardias are a potential cause of non-immune hydrops. As these rhythm distu...
