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[Evaluation of cochlear function in otospongiosis. Preliminary study]
1Service d'Oto-Rhino-Laryngologie et de Chirurgie Cervico-Faciale, Hôpital Boucicaut, Paris.
Summary
Otospongiosis treatment via piston-cupping surgery does not alter middle ear function. However, it may not prevent damage to the external ciliated cells of Corti's organ, even with minimal audiometric changes.
Area of Science:
- Otolaryngology
- Audiology
- Surgical Innovation
Context:
- Otospongiosis poses significant therapeutic challenges, particularly concerning lesions affecting Corti's organ.
- Evaluating surgical interventions for otospongiosis requires comprehensive audiological assessment.
- Preserving cochlear function is paramount in managing hearing loss associated with otospongiosis.
Purpose:
- To assess the impact of total platinectomy with temporal aponeurosis interposition and piston-cupping on middle ear function and Corti's organ.
- To evaluate audiometric outcomes and otoacoustic emissions post-surgical intervention for otospongiosis.
Summary:
- Audiometric measurements (pure-tone, speech audiograms, tympanograms) and otoacoustic emissions were analyzed in 26 patients (40 ears) undergoing platinectomy and piston-cupping.
- Results indicate that the piston-cup procedure does not significantly alter the middle ear's transfer function.
- Despite minimal changes in pure-tone and speech audiograms, evidence suggests potential damage to the external ciliated cells of Corti's organ.
Impact:
- The piston-cup procedure appears safe regarding middle ear mechanics but may not fully protect inner ear structures.
- Findings highlight the need for further research into the long-term effects of otospongiosis surgery on cochlear health.
- This study contributes to understanding the delicate interplay between surgical intervention and sensorineural hearing preservation in otospongiosis.