"Hydrocephalus may develop after a successful third ventriculostomy secondary to several reasons, despite initial relief provided by the procedure, such as 3-5,:"
"First developed in the early 1900s prior to advent of VP shunting, and at that time employed a subfrontal approach with sacrifice of the optic nerve! In 1923 a urologist by the name of William Mixter used a urethroscope to perform the first endoscopic ventriculostomy."
"closure or scarring of the stoma: over time, the surgical created opening (stoma) may close due to fibrosis or scarring which could be caused by inflammation, infection or individual healing response 3"
"History and etymology"