Causes of late death due to hydrocephalus and meningomyeloceles.

In conclusion, it can be said that operative treatment of hydrocephalus was carried out almost exclusively using the Holter valve and the Rickham reservoir. There was a lack of experience with other drainage systems. Of the 291 children operated in this clinic, 274 were evaluated. The fate of the other 17, all of whom were foreigners who returned to their countries, is unknown. A considerable number of children in the late death group did not come regularly to the postoperative care unit or came too late for control investigations, or died at home or in paediatric departments far away from this centre.