Tetralogy of Fallot associated with complete atrioventricular canal.

A 6-year-old girl had the clinical appearance of tetralogy of Fallot but was found at cardiac catheterization to have tetralogy of Fallot associated with complete atrioventricular canal. She underwent repair, and at recatherterization two years later, the hemodynamic result was excellent. Proper angiography is necessary to diagnose this combination, and correct preoperative diagnosis is necessary to plan a rational operative approach.