[Severance of the accessory bundle of Kent in a 13-year-old boy with Ebstein's anomaly of the tricuspid valve].

In patients with Ebstein's anomaly of the tricuspid valve combined with WPW syndrome, possibly other cardiac disease, in particular with the repeated occurrence of severe tachydysrhythmias we can foresee cure or at least elimination of complaints by simultaneous surgical treatment of all defects. The author presents experience with the surgical treatment, the first of its kind in this country, in a boy aged 13 years. By better diagnosis it proved possible to locate correctly and to severe by surgery the abnormal accessory bundle between the right atrium and right ventricle, simultaneously with a plastic operation of the insufficient tricuspid valve with closure of the atrial septal defect. Since the operation the patient has no signs of ventricular preexcitation and has no tachydysrhythmias.