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KMID : 0361020010440010032
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Korean Journal of Otolaryngology - Head and Neck Surgery
2001 Volume.44 No. 1 p.32 ~ p.36
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Endoscopic Approach to Tympanic Sinus during Tympanomastoidectomy for Cholesteatoma
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Abstract
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Background and Objectives : Whether through a posterior tympanotomy or after canal wall-down mastoidectomy, visualization of the most posterior recess of the tympanic sinus is often inadequate. The purpose of this study is to assess the
usefulness
of
endoscopic approach to tympanic sinus during chlolesteatoma surgery. Materials and Methods : Twenty six cases that had been operated by a same surgeon were reviewed. The mean follow-up period was 12.5 months. Four cases with cholesteatoma
confined
to
tympanic sinus had underwent tympanoplasty. Twenty-two cases had underwent canal wall-down mastoidectomy with or without ossiculoplasty. Results : Two patients(7.7%) showed recurrence of cholesteatoma in tympanic sinus within 6 postoperative
months.
Twenty-four cases showed normal state. CT scans were performed in 14 cases before the second look operation. All free air cavities on the CT scan showed no residual cholesteatoma. Conclusion : The endoscopic approach to the middle ear in
association
with a microscope enables surgeons to eradicate the cholesteatoma at the tympanic sinus more effectively.
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KEYWORD
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