[Life-threatening crises of intracerebral fluid pressure induced by so-called overdrained hydrocephalus. Contribution to shunt-surgery in childhood].

The use of ventriculo-atrial shunts for the various forms of hydrocephalus can lead to an excessive drainage of cerebro-spinal fluid, resulting in a collapse or increasing obliteration of the ventricular system. This finding was confirmed in 76 children with congenital or acquired hydrocephalus who were examined by computerised axio-tomography (CAT scan). If raised intracranial pressure develops there will be symptoms of raised pressure which are discussed. The acute as well as the prophylactic management is described and the dehydrating effect of dexamethazone in children with hydrocephalus and a collapsed ventricular system is discussed.