Perilymphatic Fistula


Perilymphatic Fistula, Hennebert's Sign, Hennebert's Syndrome

  • Definition
  1. Communication between inner and middle ear
  • Causes
  1. Direct blow to ear
  2. Scuba related Barotrauma
  3. Excessive straining on stooling, lifting, sneezing
  • Pathophysiology
  1. Peripheral Cause of Vertigo
  • Symptoms
  1. Vertigo
  2. Associated with Hearing Loss
  • Signs
  • Hennebert's Sign
  1. Pressure applied to tragus and external auditory meatus
    1. Pneumatic Otoscopy may also induce
  2. Results in Vertigo or Nystagmus when fistula present