Communicating hydrocephalus.
D000368:Aged; D002557:Cerebrospinal Fluid Shunts; D005500:Follow-Up Studies; D006801:Humans; D006849:Hydrocephalus / Q000601:surgery*; D006850:Hydrocephalus, Normal Pressure / Q000601:surgery*; D008297:Male; D008875:Middle Aged