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Otitic Hydrocephalus

  1. Rarest complication
  2. Age group: adolescents and children
  3. Increased ICT following middle ear infection (onset: many weeks after ASOM many years after CSOM)
  4. Pathogenesis:
    1. Lateral sinus thrombus → Affects cerebral venous outflow ICT
    2. Extension into superior Impedes CSF resorption ICT
      Sagittal sinus
  5. Features:
    1. Headache
    2. Blurred vision due to papilledema/optic atrophy
    3. Nausea/vomiting
    4. VI cranial Nerve involvement/diplopia
    5. Nystagmus
    6. L. puncture C.S.F. pressure > 300 mm H20 rest NAD and-sterile
  6. Treatment (AIM to pressure to prevent optic damage)
    1. Diuretics
    2. Steroids
    3. Hyperosmolar dehydrating agents
    4. Long term: Thecoperitoneal shunting
      Prognosis — good​

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