Endoscopic third ventriculostomy in post-tubercular meningitic hydrocephalus: a preliminary report.

Hydrocephalus is a common sequel of tubercular meningitis. Endoscopic third ventriculostomy (ETV) was performed in thirty-five patients. According to the duration of illness, six patients were in the early (less than 6 weeks), nineteen were in the intermediate (6 weeks to 6 months) and ten patients were in the late phase (more than 6 months) of tubercular meningitis (TBM). Six patients were in stage I, seven patients in stage II and twenty-two patients were in stage III. The overall success rate of ETV in TBM was 77 %. Sixty percent had early and seventeen percent had delayed recovery. Obstructive hydrocephalus was present in 54.3 % and 45.7 % had communicating hydrocephalus. The radiological recovery rate was 55.6 %. The outcome with a thin to transparent floor of the third ventricle was 87 %.