My son, 29, teacher with Tetralogy of Fallot, has a leaky pulmonary valve—is he likely to need further surgery as he gets older?

In some cases, after repair of tetralogy of Fallot, the pulmonary valve can become leaky, and this sometimes does need further surgery. It depends on the technique used for the original surgery, the degree of leakiness and the effect the leakiness has on the right side of the heart.