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[Perilymphatic fistula].

B Angelard1, M François, P Viala

  • 1Service ORL, Hôpital Robert Debre, Paris.

Annales D'Oto-Laryngologie Et De Chirurgie Cervico Faciale : Bulletin De La Societe D'Oto-Laryngologie Des Hopitaux De Paris
|January 1, 1991
PubMed
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Perilymphatic fistulae, a cause of hearing loss in children, can be identified using computed tomography. Surgical exploration can stabilize hearing, though significant improvements are rare, with low morbidity.

Area of Science:

  • Otolaryngology
  • Pediatric Audiology
  • Neurosurgery

Background:

  • Perilymphatic fistulae are a primary cause of perceptive deafness in children.
  • These cases often present with progressive or fluctuating hearing loss of unknown origin.
  • Surgical intervention is a potential treatment for this condition.

Purpose of the Study:

  • To analyze the efficacy of surgical exploration for perilymphatic fistulae in children.
  • To identify the most effective diagnostic criteria for surgical indication.
  • To evaluate the outcomes and morbidity associated with the surgical treatment.

Main Methods:

  • Retrospective analysis of 48 ear explorations in 37 children with unexplained perceptive deafness.
  • Utilized computed tomography (CT) to assess the patency of the aqueduct of the cochlea as a selection criterion.

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  • Surgical exploration focused on identifying and addressing perilymphatic fistulae, particularly at the fissura ante fenestram.

    • Main Results:

    • Computed tomography proved efficient in selecting patients for surgical exploration.
    • Hearing stabilization was the primary outcome, with significant hearing improvements being infrequent.
    • The study observed low morbidity, with complications mainly related to incomplete fistula closure.

    Conclusions:

    • Surgical exploration for perilymphatic fistulae in children can lead to hearing stabilization.
    • CT is a valuable tool for identifying surgical candidates.
    • Further research is necessary to elucidate the pathophysiology and long-term outcomes of perilymphatic fistulae treatment.