[The percutaneous cardiac catheterization in the diagnosis of congenital cardiac failure (author's transl)].

The results of a modified percutaneous approach of 113 cardiac catheterizations will be reported. The success rate for the right heart catheterization from the unselected cases in 63% in infants, 84% in those one to five years old and 96% in those children older than five years. For the retrograde left heart catheterization, the percutaneous approach was successful in infants in 91% (except one patient with aortic coarctation) and successful in all patients older than one year.