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Cochlear function after stapedectomy
1ORL Department (Otoneurology Unit), Faculty of Medicine, Mansoura University, Egypt.
Summary
Stapedectomy significantly improves hearing and speech discrimination in otosclerosis patients. Operated ears showed stable bone conduction, while non-operated ears deteriorated, suggesting stapedectomy benefits hearing preservation.
Area of Science:
- Otolaryngology
- Audiology
- Neurosurgery
Background:
- Otosclerosis causes conductive hearing loss, often treated with stapedectomy.
- Delayed sensorineural hearing loss post-stapedectomy is a concern, potentially linked to the surgery or disease progression.
Purpose of the Study:
- To evaluate the long-term effects of stapedectomy on hearing in otosclerosis patients.
- To compare hearing outcomes between operated and non-operated ears.
Main Methods:
- A study involving 80 patients who underwent unilateral stapedectomy.
- A minimum follow-up period of 1 year was maintained.
- Bone conduction thresholds and speech discrimination scores were analyzed.
Main Results:
- Operated ears demonstrated stable bone conduction with significant improvement at 2,000 Hz.
- Non-operated ears showed a significant deterioration in bone conduction thresholds (p < 0.001).
- Speech discrimination scores significantly improved in the operated group (p < 0.001).
Conclusions:
- Stapedectomy is effective in improving hearing and speech discrimination in otosclerosis.
- The procedure appears to stabilize or improve bone conduction in operated ears.
- Non-operated ears may experience hearing deterioration, highlighting the disease's progression.