Newborn with hydrops fetalis and a severe supraventricular arrhythmia.

1 The prognosis for WPW syndrome is good as the ECG pattern resolves mostly within 1 year of age, with the loss of conduction of the accessory pathway. Echocardiography showed severe tricuspid insufficiency and dilated right cardiac chambers. Prenatal ultrasound showed a moderate enlargement of the right heart sections with a mild tricuspid insufficiency, without tachycardia, polyhydramnios, placentamegaly, renal agenesis and oesophageal atresia. [Extracted from the article]