title: Post-traumatic hydrocephalus.
abstract: The syndrome of post-traumatic hydrocephalus (PTH) has been recognized since Dandy's report in 1914. The incidence of symptomatic PTH ranges from 0.7%-29%. If CT criteria of ventriculomegaly are used the incidence has been reported to be from 30%-86%. Differences in diagnostic criteria and classification have contributed to the variation in reported incidence. The diagnosis of PTH is established using a combination of clinical, imaging and physiologic data. Symptomatic PTH is to be distinguished from post-traumatic ventriculomegaly resulting from atrophy. Symptomatic PTH patients are likely to improve when treated by shunting. Ventriculomegaly secondary to atrophy is less likely to respond to shunting. A series of traumatic brain injury patients at Wayne State University has been followed since 1989. The overall incidence of shunt placement in this group is 3.65%. Future studies of PTH should be aimed at refining diagnostic classification and criteria. Analysis of a large PTH population may then identify alterable risk factors in the early post-traumatic brain injury period. Minimizing these factors will help prevent subsequent PTH and obviate the need for shunting.
authors.affiliation: Department of Physiology and Anatomy, Wayne State University, Detroit, MI, USA.
authors.forename: L L
authors.initials: LL
authors.lastname: Guyot
authors.forename: D B
authors.initials: DB
authors.lastname: Michael
mesh_terms: D001930:Brain Injuries / Q000150:complications*; D002557:Cerebrospinal Fluid Shunts; D006259:Craniocerebral Trauma / Q000150:complications*; D003937:Diagnosis, Differential; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology* / Q000628:therapy; D015994:Incidence