To date, 92 heart transplants have been performed as part of the pedia
tric heart transplant program started at the Necker Enfants Malades/La
ennec Hospital in Paris in 1987. One-third of patients were younger th
an two years of age at transplantation, and nine were younger than nin
e months. The most common reason for transplantation was cardiomyopath
y (64%), which was usually of the dilated hypokinetic type; 33 patient
s (36%) had congenital heart defects. Maintenance immunosuppressant th
erapy usually consisted of cyclosporin and azathioprine, with in some
cases Low-dose corticosteroid therapy. The postoperative complication
rate was high. The most common early complication was acute rejection,
whose diagnosis relied primarily on endomyocardial biopsy. Infections
were.-very common during the first six months; after a phase of domin
ant bacterial infections, viral infections became more common. Cyclosp
orin caused renal dysfunction in some cases. Immunosuppressant-induced
lymphoproliferative disorders occurred in eight patients and were sev
ere in five. The main long-term complication was coronary artery disea
se, which was responsible for complete coronary artery occlusion in so
me cases. Mortality rates were about 22% during the first month and 26
% subsequently. Most late deaths were due to coronary artery disease,
rejection, or lymphoproliferative syndrome. Most survivors enjoyed an
excellent quality of life and were able to engage in normal physical a
ctivities.