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  • Title: Analysis of long-term hearing gains after stapes surgery with piston reconstruction for otosclerosis.
    Author: Gristwood RE, Venables WN.
    Journal: Ann Otol Rhinol Laryngol; 2013 Aug; 122(8):500-10. PubMed ID: 24027860.
    Abstract:
    OBJECTIVES: We sought to assess the postoperative hearing gains at individual frequencies after stapes surgery with piston reconstruction for clinical otosclerosis. METHODS: We analyzed the air conduction (AC) hearing gains at various audiometric frequencies in a sample of 1,168 stapes procedures with piston reconstruction performed on 911 strictly consecutive patients by one surgeon between 1963 and 1979. Assiduous follow-up of patients was attempted for at least 10 years. The audiometric results over time were stored for computer analysis. RESULTS: The mean AC gain over the speech frequencies (0.5, 1,2, and 3 kHz) was 35.5 dB at 1 year after operation, and the rate of deterioration over the next 19 years was 0.58 dB/y. CONCLUSIONS: The picture to emerge from the analysis is clear. The mean AC gain is maximal at nearly 40 dB for the audiometric frequencies of 0.25, 0.5, and 1 kHz. The mean AC gain at any given time after operation decreases with increasing frequency, at least for frequencies of > or = 1 kHz. For any frequency there is, with few exceptions, a significant decrease in the AC gain from one time period to the next.
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