Objective: Evaluation of the results of balloon dilatation in coarctation of the aorta in children.
Design: Retrospective.
Method: In the years 1990-1999 30 patients with a congenital coarctation of the aorta were treated with balloon angioplasty in the Children's Heart Centre of Utrecht University Medical Centre, the Netherlands. The group comprised 5 girls and 25 boys, with a mean age of 4.8 years (range 1 month-16 years) without severe associated congenital heart defects or a long segment coarctation. Follow-up included Doppler echocardiography and MRI within the first 6 years after the procedure. The fall of the pressure gradient was assessed with Student's t-test for paired observations and the reintervention period was calculated by the Kaplan-Meier method.
Results: No children died. Of 30 procedures performed, 28 (93%) were considered successful. Mean pressure gradient was reduced from 36.2 mmHg (SD: 12.7) to 13.1 mmHg (SD: 9.3) (p < 0.001). Mean follow-up was 4.1 years; the follow-up of 11 patients was longer than 5 years. Four patients (13%) developed a recoarctation. No aneurysm formation was encountered (n = 14).
Conclusion: Balloon angioplasty for the treatment of native coarctation of the aorta in children may be an efficient and not very damaging solution for this selected group of patients.