• Tushar Raut, Ravindra Kumar Garg, Amita Jain, Rajesh Verma, Maneesh Kumar Singh, Hardeep Singh Malhotra, Neera Kohli, and Anit Parihar.
• Department of Neurology, King George Medical University, Uttar Pradesh, Lucknow 226003, India.
• J. Infect. 2013 Apr 1; 66 (4): 330-7.

BackgroundHydrocephalus is one of the most common complications of tuberculous meningitis. The present study evaluated the incidence, predictive factors and impact of hydrocephalus on overall prognosis of tuberculous meningitis.Material And MethodsIn a prospective cohort study, all patients fulfilling the inclusion criteria of tuberculous meningitis underwent clinical and cerebrospinal fluid evaluation, together with magnetic resonance imaging of the brain. Patients were treated with antituberculosis drugs and dexamethasone. Follow up neuroimaging was done after 6 months. Hydrocephalus was assessed using Evan's index.ResultsOf 80 patients with tuberculous meningitis, 52(65%) had hydrocephalus at presentation. During follow up, 8 new patients developed hydrocephalus. Factors associated with hydrocephalus included advanced stage of disease, severe disability, duration of illness > 2 months, diplopia, seizures, visual impairment, papilledema, cranial nerve palsy, hemiparesis, CSF total cell count > 100/cu.mm, CSF protein > 2.5 g/l. Neuroimaging factors that were significantly associated with hydrocephalus included basal exudates, tuberculoma and infarcts. Multivariate analysis revealed visual impairment, cranial nerve palsy and the presence of basal exudates as significant predictors of hydrocephalus. In 13 patients, with early tuberculous meningitis, there was complete resolution of hydrocephalus. Hydrocephalus was significantly associated with mortality and poor outcome.ConclusionHydrocephalus occurs in approximately two-third of patients with tuberculous meningitis and has an unfavorable impact on the prognosis. Hydrocephalus in early stages of tuberculous meningitis may resolve completely.Copyright © 2012 The British Infection Association. Published by Elsevier Ltd. All rights reserved.

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