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Perilymphatic fistula in pediatric patients with a preexisting sensorineural loss
1Pappas Ear Clinic, Birmingham, Alabama 35233.
Insights
Perilymphatic fistula (PLF) caused progressive hearing loss in some children with existing sensorineural hearing loss (SNHL). Symptoms included trauma, inner ear defects, hearing decline, and vertigo.
Area of Science:
- Otolaryngology
- Pediatric Audiology
- Neurosurgery
Background:
- Investigating causes of progressive sensorineural hearing loss (SNHL) in children.
- Assessing the role of perilymphatic fistula (PLF) in pediatric hearing deterioration.
Observation:
- A cohort of 28 children (38 ears) with pre-existing SNHL was evaluated.
- Surgical identification of PLF in 6 of the affected ears.
- No defects were found in the remaining 32 ears.
Findings:
- PLF was surgically confirmed in 6 ears.
- Associated symptoms included trauma, CT-evident inner ear defects, 25-30 dB hearing threshold decrease, and vertigo.
- PLF is a potential cause of hearing loss progression in pediatric SNHL.
Implications:
- Highlights the importance of considering PLF in pediatric SNHL with specific symptoms.
- Suggests further diagnostic and surgical evaluation for suspected cases.
- Informs clinical management strategies for children experiencing worsening hearing loss.
Abstract:
A specific group of 28 children (38 ears) with a preexisting sensorineural hearing loss (SNHL) was studied to determine if a perilymphatic fistula (PLF) was the cause of a progression in their hearing loss. A PLF was identified surgically in six of these ears, but there was no evidence of any defect found in 32 ears. The symptoms shared by the cases in which a fistula was found included a traumatic event (including exertion), CT scan evidence of inner ear defects, hearing threshold decreases of 25 to 30 dB, and vertigo or postural instability.