Retrospective Assessment of Pulmonary Vascular Resistance in Fontan Patients Who Have Undergone Orthotopic Heart Transplantation

Children born with certain congenital heart diseases such as tricuspid atresia or single ventricle physiology normally undergo the Fontan procedure during their course of treatment. The Fontan procedure however is palliative and some of these children will eventually require heart transplantation. It has been shown in pre-clinical animal models that pulmonary vascular resistance actually increases after having the Fontan procedure however this has not been quantitated in the human population.1

This is a retrospective chart review with the primary objective of examining Fontan patients with pulmonary vascular resistance and who have undergone heart transplantation. We will review 50 charts at Children's Healthcare of Atlanta, Egleston Hospital. Three other United States' sites are participating. All de-identified data will be forwarded to the Great Ormond Street Hospital in London, England for study analysis. In order to ascertain this objective, the following data will be collected.

1. Diagnosis
2. Surgical History
3. Information from Pre-transplant evaluation
4. Post-transplant hemodynamics
5. Post-transplant catheterization results