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KMID : 0858620060100010062
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Korean Journal of Audiology
2006 Volume.10 No. 1 p.62 ~ p.67
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Clinical Analysis of Otosclerosis and Congenital Stapedial Fixation
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Kim Lee-Suk
Park Dong-Eun
Kwon Byung-Woo
Jeong Sung-Wook
Kim Jae-Ryong
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Abstract
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Objective: The aim of this study was to analyze the clinical features and the results after stapes surgery for patients with otosclerosis and congenital stapedial fixation.
Methods: From Aug. 1993 to Apr. 2006, we analyzed 41cases (30 patients) of stapes surgery done by one surgeon with otosclerosis and congenital stapedial fixation at Dong-A University Hospital. The clinical features, postoperative complication, and pre- and postoperative air-bone gap (AB gap) were analyzed. Furthermore, postoperative bone conduction (BC) gain was investigated by age groups in the cases with otosclerosis.
Results: Forty-one cases (30 patients) were identified as 32 cases (23 patients) with otosclerosis and 9 cases (7 patients) with congenital stapedial fixation after stapes surgery. The average follow-up periods were 38 months (3-100 months) in otosclerosis and 29 months (6-68 months) in congenital stapedial fixation. There was no postoperative complication in all cases. At 3-month postoperative follow-up, 24 of 31 cases (77%) with otosclerosis and 4 of 9 cases (44%) with congenital stapedial fixation had an AB gap of 10 dB or less, and 26 of 31 cases (83%) with otosclerosis and 7 of 9 cases (78%) with congenital stapedial fixation had an AB gap of 20 dB or less. Thereafter the hearing results have been maintained over time. In otosclerosis, mean postoperative BC gain was 3.8 dB, and mean postoperative BC gains by age groups did not differ significantly (p>0.05).
Conclusion: We obtained the good hearing results after stapes surgery and stable hearing results over time. And the BC thresholds in otosclerosis were improved after surgery.
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KEYWORD
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Otosclerosis, Congenital stapedial fixation, Stapedectomy, Stapedotomy, Air-bone gap
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