Korean J Otolaryngol-Head Neck Surg.  2001 Jan;44(1):32-36.

Endoscopic Approach to Tympanic Sinus during Tympanomastoidectomy for Cholesteatoma

Affiliations
  • 1Department of Otolaryngology, Wonkwang Medical School, Iksan, Korea. chul@wonms.wonkwang.ac.kr

Abstract

BACKGROUND AND OBJECTIVES: Whether through a posterior tympanotomy or after canal wall-down mastoidectomy, visuali-zation 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.

Keyword

Cholesteatoma; Operation; Tympanic sinus; Endoscopy
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