Due to the continual progress being made in the surgical treatment of congenital heart diseases, very few symptomatic cardiac malformations can not now benefit from surgery, or more recently, from interventional catheterization. The result of such progress has led to an extraordinary change in survival patterns of congenital heart disease. With few exceptions, heart surgery is not curative. Residua and sequelae are the rule, and impose important medical, and sometimes surgical problems in the follow-up. Adequate control of this growing population is not easy within most of our adult cardiological departments. Adult patients with congenital heart disease represent a new area of cardiovascular interest.