Perilymph fistulas in children: experience of the Otologic Medical Group

J W House1, F M Rizer

  • 1University of Southern California School of Medicine, Los Angeles.

Insights

Fistula exploration for hearing loss is rarely successful in children, with most showing no improvement. Exploration is only recommended for progressive hearing loss with inner ear deformities to rule out perilymph fistulas.

Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Audiology

Background:

  • Perilymph fistulas can cause sudden sensorineural hearing loss (SNHL), dizziness, and meningitis.
  • Previous approaches involved routine exploration for SNHL, but success rates varied widely.
  • The Otologic Medical Group (OMG) shifted towards selective exploration criteria.

Purpose of the Study:

  • To evaluate the outcomes of surgical exploration for suspected perilymph fistulas in pediatric and adult patients.
  • To determine the efficacy of fistula exploration in cases presenting with hearing loss and dizziness.

Main Methods:

  • Retrospective review of 86 consecutive fistula explorations over 12 years.
  • Analysis of patient demographics, presenting symptoms, surgical findings, and postoperative outcomes.
  • Specific focus on nine pediatric patients undergoing fistula exploration.

Main Results:

  • None of the nine pediatric patients had a confirmed fistula.
  • Postoperative hearing outcomes in children included one improvement, five no changes, and two worsening.
  • In adults, 35 fistulas were identified; outcomes varied, leading to selective exploration criteria.

Conclusions:

  • Fistula exploration should be considered for progressive or fluctuating sensorineural hearing loss, particularly with congenital inner ear deformities.
  • Surgical exploration for suspected perilymph fistulas in children is generally not recommended unless specific criteria are met.
  • Hesitancy in exploring patients for fistulas is advised due to variable success rates and the low incidence of confirmed cases.