title: The Sophy valve and the el-Shafei shunt system for adult hydrocephalus.
abstract: A selected series of 22 adult patients with hydrocephalus were treated by a shunt system incorporating a variable pressure Sophy valve or by ventriculojugular shunting against the direction of blood flow using the El-Shafei system. One patient had insertion of two Sophy valves and an El-Shafei shunt. Patient selection was reserved to those with hydrocephalus thought to be at high risk when shunted with systems containing a conventional unipressure valve. None of the eight patients who had ventriculojugular shunting by the El-Shafei method demonstrated any notable clinical or radiological improvement subsequent to shunt insertion. Of the 16 Sophy devices inserted only seven produced a satisfactory result. The current evaluation of shunt malfunction could be improved by support for a national register.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015170:Cerebrospinal Fluid Pressure; D002648:Child; D004867:Equipment Design; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D018579:Patient Selection; D012307:Risk Factors; D016896:Treatment Outcome; D017287:Ventriculoperitoneal Shunt / Q000295:instrumentation*