[Comparative study using AAO-HNS guidelines for conductive hearing loss and Glasgow Benefit Plot to evaluate results of stapes surgery for otosclerosis: results of 129 cases].
OBJECTIVE
For surgery of otosclerosis, broughting to the fore interest of crossing informations achieved by using AAO-HNS guidelines for conductive hearing loss and Glasgow Benefit Plot (GBP). Secondary aim: compare stapedotomy with and without veinous interposition. INSTITUTIONS: Referential otologic center in semi-country-side general hospital and private institution in urban zone.


METHODS
retrospective bi-centric study comparing 129 cases of primary surgery for otosclerosis between 1998 and 2004. 3 groups: stapedotomy without veinous interposition (92 cases), stapedotomy with veinous interposition (27 cases), stapedectomy (10 cases). Results given following AAO-HNS guidelines and GBP.


METHODS
variance analysis test and t-Student test (p < 0,05), graphic analysis of inter-aural difference before and after surgery.


RESULTS
Main benefit in air conduction (AC) threshold is 23 to 25 dB, no statistical difference between both techniques of stapedotomy. Stapedotomy gives better results than stapedectomy in this serie. Stereophony is achieved in 75% of overall cases with stapedotomy but normal hearing is achieved in only 53% of unilateral pre operative hearing loss.


CONCLUSIONS
Stapedotomy is a more effective technique in this serie. Crossing informations achieved using AAO-HNS guidelines and GBP leads to give a more realistic and comprehensive understanding to patients who will undergo surgery for otosclerosis.
Caces
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Centre Hospitalier de Villefranche de Rouergue, Unité d'ORL et Chirurgie Cervico-Faciale, 12200 Villefranche de Rouergue, France. Cacesf@aol.com
Braccini
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D000293:Adolescent; D000328:Adult; D000368:Aged; D003627:Data Interpretation, Statistical; D005260:Female; D006314:Hearing Loss, Conductive / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010040:Otosclerosis / Q000150:complications* / Q000601:surgery*; D017410:Practice Guidelines as Topic; D012720:Severity of Illness Index; D013201:Stapes Surgery