Aim: To ascertain the effects of transcatheter repair of the secondary interatrial defect (IAD) with Amplatzer occluder on heart remodeling in respect to the patient's age.
Material And Methods: Transcatheter repair of the secondary IAD was made in 64 patients. Two groups were formed by the patients' age: group 1--age under 16 years (mean age 9 +/- 0.