Tetralogy of Fallot: Results of a Pulmonary Valve-Sparing Strategy

A pulmonary valve-sparing approach to the repair of tetralogy of Fallot was applied successfully in 80% of patients. Significant markers for success were a measured pulmonary annulus z-score of −4 or larger, a tricuspid pulmonary valve, and a postoperative pressure ratio between the right and left ventricles less than 0.7.