Endoscopic third ventriculostomy for hydrocephalus: early and late efficacy in relation to aetiology.

Objectives: The aim of the study was to analyse the effectiveness and usefulness of treatment of hydrocephalus by Endoscopic Third Ventriculostomy (ETV). We sought to relate rates of failure to the cause of hydrocephalus, distinguishing between early and late outcome.

Patients And Methods: Between September 1999 and April 2001, 30 patients underwent ETV.