Considérations sur les critères de régression d'une hydorcéphalie communicante de l'adulte

The authors report a case of communicating hydrocephalus in the adult following the rupture of an internal carotid aneurysm on its supraclinoid portion. The clinical picture was characterized by akinetic mutism associated with intracranial hypertension, without clinical or ophtalmological signs but clearly demonstrated by continuous recordings of the intraventricular pressure. The interest of the intraventricular pressure recordfing of isotope cisternography and of fractioned pneumo-encephalography after ventriculocardicac drainage is stressed. The normalization of intracranial pressure, and that of the ventricular volume (estimated by isotope cisternography and penumo encephalography) are good indications concerning the correct functionning of the derivation.