Dizziness is a common complaint in ambulatory care, comprising 4% to 5% of all visits. AVS is characterized by rapid onset of vertigo, nausea/vomiting, nystagmus and head-motion intolerance. Vertigo is a symptom, not a diagnosis.
Hydrocephalus is a condition thatâs also known as water on the brain. Hydrocephalus can occur in older children and adults, particularly older adults.
Some people have an increase of fluid in the brain. The extra fluid puts pressure on the brain. This is called intracranial (in-truh-KRAY-nee-ol) pressure. To reduce the pressure, the doctor can insert an EVD into the brain to drain the extra fluid.