Abtrait
Il n’est pas très fréquent de devoir traiter une insuffisance hypophysaire pendant une grossesse. En effet, les causes principales ďinsuffisance hypophysaire sont les macroadénomes hypophysaires et les séquelles de leur traitement chirurgical ou radiothérapique (1). Or, ľâge moyen du diagnostic de ces macroadénomes se situe autour de cinquante ans. Cependant ďautres causes ďinsuffisance hypophysaire touchent des femmes plus jeunes, voire des fillettes (craniopharyngiome, histiocytose X, radiothérapie cérébrale pour médulloblastome, gliome des voies optiques ou autres tumeurs du système nerveux central, méningiome, syndrome de Sheehan, hypophysite lymphocytaire). Ces jeunes patientes, comme toutes les jeunes femmes, envisagent toujours la possibilité ďune grossesse et la plupart ďentre elles auront le désir de réaliser ce projet. Leur grossesse impose naturellement au préalable un traitement de stimulation de ľovulation par gonadotrophines, ou plus rarement par pompe GnRH. Ľendocrinologue aura donc en principe largement le temps de se préparer à ľadaptation du traitement substitutif. Plus rarement, il pourra être pris de court par la survenue ďune insuffisance hypophysaire au cours ďune grossesse, chez une patiente qui avait au départ des fonctions hypophysaires normales. Il s’agit alors ďune pathologie hypophysaire apparue pendant la grossesse, ou précipitée par celle-ci: hypophysite lymphocytaire, méningiome du tubercule de la selle, voire nécrose hémorragique ďun macroadénome, dont la sécrétion avant la grossesse n’aurait pas empêché la survenue ďune ovulation.
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Chabre, O. (2007). Traitement de ľinsuffisance hypophysaire pendant la grossesse. In: Pathologie hypophysaire et grossesse. Springer, Paris. https://doi.org/10.1007/978-2-287-35572-1_3
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DOI: https://doi.org/10.1007/978-2-287-35572-1_3
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