Clinical equipoise in idiopathic normal pressure hydrocephalus: A survey of physicians on the need for randomized controlled trials assessing the efficacy of cerebrospinal fluid diversion

A RCT of CSF diversion in iNPH is absent from the literature. The majority (> 75%) of physicians involved in the diagnosis and treatment of iNPH believe a RCT is required to determine the efficacy, duration of efficacy and risk-benefit ratio of CSF diversion in iNPH.