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Some observations concerning 200 stapedectomies: fifteen years postoperatively.
M Del Bo1, A Zaghis, U Ambrosetti
1Istituto di Audiologia dell'Universita di Milano, Italia.
The Laryngoscope
|October 1, 1987
Summary
This study statistically evaluated hearing improvement and complications after otosclerosis surgery using a Gelfoam prosthesis. Results show immediate and gradual sensorineural hearing loss in some patients, highlighting the need for long-term monitoring.
Area of Science:
- Otolaryngology
- Audiology
- Surgical Innovation
Background:
- Otosclerosis surgery aims to restore hearing by addressing stapes fixation.
- Long-term outcomes and potential complications require continuous evaluation.
- Standardized surgical techniques are crucial for consistent results.
Purpose of the Study:
- To statistically evaluate hearing improvement after otosclerosis surgery.
- To determine the incidence of postoperative tinnitus and vertigo.
- To assess the long-term permanency of surgically restored hearing.
Main Methods:
- Statistical analysis of 200 patients (120 women, 80 men) operated on for otosclerosis between 1970-1971.
- Standardized surgery using Gelfoam and wire prosthesis (Schuknecht 3).
- Audiological examinations including bone/air conduction and pure tone thresholds (500-4000 Hz).
Main Results:
- 10% incidence of severe sensorineural loss examined in relation to age, preoperative bone conduction, and oval window pathology.
- Severe sensorineural losses occurred immediately postoperatively in 14 ears.
- Gradual hearing losses developed over 15 years in remaining ears; control ears also monitored.
Conclusions:
- Surgically restored hearing in otosclerosis patients can be subject to immediate or gradual sensorineural hearing loss.
- Long-term audiological monitoring is essential to track hearing stability post-surgery.
- Further research into predictive factors for sensorineural loss is warranted.