Ebstein's anomaly. Clinical study of 32 patients in childhood.

Thirty-two patients with Ebstein's anomaly are described. A case is made to maintain a clinical diagnosis because of the potential danger ofphysiological investigation. It is also to be noted that in the absence ofpersistent cyanosis or paroxysmal tachycardia, the prognosis of this anomaly in childhood is good, and physiological investigation can be reserved for a preoperative measure. The established criteriafor the clinical diagnosis are the presence ofa 'scratchy diastolic murmur', and of P pulmonale in the absence of right ventricular dominance in the electrocardiogram.