Inner ear effects of canal wall down mastoidectomy. Journal Article

Authors: Leonetti, J. P.; Kircher, M. L.; Jaber, J. J.; Benscoter, B. J.; Marmora, J. J.; Feustel, P. J.
Article Title: Inner ear effects of canal wall down mastoidectomy.
Abstract: OBJECTIVE: To evaluate the inner ear effects of canal wall down (CWD) mastoidectomy without ossiculoplasty in the treatment of chronic otitis media (COM) with regard to sensorineural hearing loss (SNHL) and reported tinnitus and dizziness-related disability. SETTING: Tertiary care academic medical center. SUBJECTS AND METHODS: Prospective study of 86 patients treated by CWD mastoidectomy without ossiculoplasty for COM with or without cholesteatoma. Standard patient workup included preoperative audiogram and completion of 2 surveys: Dizziness Handicap Inventory (DHI) and Tinnitus Handicap Inventory (THI). Patients underwent repeat audiogram, DHI, and THI surveys at 4 to 6 months postoperatively. Preoperative and postoperative data were analyzed. RESULTS: No significant SNHL occurred after CWD mastoidectomy. Thirteen patients (13/34 [38%]) had DHI improvement greater than 18 points, indicating a significant improvement in dizziness-related disability. Three patients developed new-onset postoperative dizziness complaints. Twenty patients (20/43 [46.5%]) had THI improvement greater than 7 points, indicating a significant improvement in tinnitus-related disability. Five patients developed new-onset postoperative tinnitus complaints. The odds ratio for improving DHI and THI scores after surgery was 6.6 (1.8 to 25.0) and 4.2 (95% confidence interval, 1.45% to 12.2%), respectively. CONCLUSION: In this study, CWD mastoidectomy without ossiculoplasty in the treatment of COM did not cause significant SNHL. In addition, using the DHI and THI measures, patient-perceived disability from dizziness and tinnitus, respectively, was shown to decrease after mastoid surgery.
Journal Title: Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery
Volume: 146
Issue: 4
ISSN: 1097-6817; 0194-5998
Publisher: Unknown  
Journal Place: England
Date Published: 2012
Start Page: 621
End Page: 626
Language: English
Notes: ID: 12305; Record Owner: From MEDLINE, a database of the U.S. National Library of Medicine.; Status: MEDLINE; Publishing Model: Journal available in: Print-Electronic Citation processed from: Internet; NLM Journal Code: 7909794, 8508176, on7, on8; Electronic Date of Publication: 20111227; Entry Date: 20120531