Hydrocephalus The excessive accumulation of CSF results in an abnormal widening of spaces in the brain called ventricles. This widening creates potentially harmful pressure on the tissues of the brain. Treatment by an interdisciplinary team of medical professionals, rehabilitation specialists, and educational experts is critical to a positive outcome. While the success of treatment with surgical shunts varies from person to person, early diagnosis and treatment improves the chance of a good recovery. Medical Marijuana has been helpful in relieving symptoms associated with this condition like sleep apnea, seizures, manic attacks (bipolar), pain, headaches and nausea.