risque sont une dysfonction du VU, une fuite de VAV
systémique et une CEC longue (13, 22).
A long terme, la survie est variable : 70-90% à 10 ans (20,
21, 23). Les facteurs de risque de décès tardifs sont : une
PAP élevée, la survenue d’une entéropathie exsudative
et le recours au remplacement d’une VAV (12, 13).
La morbidité tardive est dominée par l’entéropathie
exsudative touchant 1 à 13% des cas (12, 17, 21, 24, 25)
et l’altération progressive de la fonction ventriculaire
plus fréquente en cas de VU droit (14) ou d’âge avancé
lors de la chirurgie (26).
La DCPT n’est donc pas une solution permanente, en
effet beaucoup de patients seront proposés pour
transplantation cardiaque.
CONCLUSION
Les cardiopathies univentriculaires sont rares, leur
pronostic est réservé. La DCPT représente la seule
alternative thérapeutique. Sa réalisation exige le
respect des critères de FONTAN permettant ainsi
d’améliorer la survie et la qualité de vie de ces patients.
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