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Journal of Injury and Violence Research، جلد ۴، شماره ۳، صفحات ۰-۰
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عنوان انگلیسی Hearing preservation and facial nerve outcomes in vestibular schwannoma surgery: Total removal using the retrosigmoid approach
چکیده انگلیسی مقاله Normal 0 false false false EN-US X-NONE AR-SA /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;} Objectives: The present study aims to report the results and the prognostic and technical factors for hearing preservation during removal of vestibular schwannoma by a retrosigmoid approach. Patients and Methods: this was a retrospective study conducting on the 286 vestibular showannomas removal surgeries using retrosigmoid approach during October 2007 to 2011.Preoperative and postoperative clinical, audiometric, and imaging data were collected and analyzed. The mean follow-up period was 3 years. Intraoperative neuromonitoring interventions were done for all patients and the complete excision of tumor was established by post-operative magnetic resonance imaging (MRI). Resuts: Functional hearing ( 50% speech discrimination) was preserved in 7 of 16 patients (43.7%) with grade II tumors, whereas only 11 of 72 patients (15.3%) with grade III tumors retained their functional hearing. Fifteen out of 16 patients (93.7%) with grade II tumors achieved a House-Brackmann (HB) grade I-III, while 63 of 72 patients (87%) with grade III tumors retained HB I-III facial function. Our result in grade IV tumors was excellence in facial nerve preservation (76%) but hearing preservation in the large tumors was only about 1%. Conclusions: Findings of the present study showed that hearing preservation depends on the tumor size and using monitoring and other modern instruments and technical skills preservation rate of it could be higher than before. Overall facial nerve preservation was excellent with >90% achieving HB 1 to 3 function at final follow-up.
کلیدواژه‌های انگلیسی مقاله Hearing preservation, facial nerve, retrosigmoid approach
نویسندگان مقاله مسعود شیروانی | masoud shirvani


محمد علی آرامی | mohammad ali arami


نشانی اینترنتی http://jivresearch.org/jivr/index.php/jivr/article/view/367
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Oral Abstracts
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