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Significance of internal auditory canal diverticula in ears with otosclerosis.
Wang, Fei; Yoshida, Tadao; Shimono, Mariko; Sugimoto, Satofumi; Teranishi, Masaaki; Naganawa, Shinji; Sone, Michihiko.
Afiliação
  • Wang F; a Department of Otorhinolaryngology , Nagoya University Graduate School of Medicine , Nagoya , Japan.
  • Yoshida T; b Department of Otorhinolaryngology , The First Affiliated Hospital of China Medical University, Otorhinolaryngology , Shenyang , China.
  • Shimono M; a Department of Otorhinolaryngology , Nagoya University Graduate School of Medicine , Nagoya , Japan.
  • Sugimoto S; a Department of Otorhinolaryngology , Nagoya University Graduate School of Medicine , Nagoya , Japan.
  • Teranishi M; c Department of Otorhinolaryngology , Nagoya Univerisity Hospital , Nagoya , Japan.
  • Naganawa S; a Department of Otorhinolaryngology , Nagoya University Graduate School of Medicine , Nagoya , Japan.
  • Sone M; d Department of Radiology , Nagoya University, Graduate School of Medicine , Nagoya , Japan.
Acta Otolaryngol ; 138(12): 1066-1069, 2018 Dec.
Article em En | MEDLINE | ID: mdl-30682901
BACKGROUND: Diverticula in the internal auditory canal (IAC) have been reported in ears with otosclerosis. OBJECTIVE: We evaluated hearing levels and vascular activity in ears with otosclerosis with and without IAC diverticula and clarify the significance of IAC diverticula. MATERIALS AND METHODS: Sixty-one ears from 54 patients who underwent stapes surgery for otosclerosis [fenestral (48 ears) and retrofenestral (13 ears) groups] were included in the present study. Preoperative hearing levels on pure tone audiometry (PTA) and intraoperative measurements of blood flow were compared between the groups. RESULTS: A total of 24 of 61 ears (39.3%) showed IAC diverticula, significantly higher than the frequency in ears without otosclerosis (3.7%). No significant differences in air- and bone-conduction thresholds on PTA were evident between ears with and without IAC diverticula in each group. Ears without IAC diverticula tended to show higher blood flow in the area anterior to the oval window than ears with IAC diverticula, but the difference was not significant. CONCLUSIONS: The incidence of the IAC diverticula in otosclerosis was significantly higher than in cases without otosclerosis. The existence of IAC diverticula was not evidently related to the severity of the disease from the perspective of hearing level and vascular activity.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Otosclerose / Cirurgia do Estribo / Divertículo / Perda Auditiva Condutiva Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Otosclerose / Cirurgia do Estribo / Divertículo / Perda Auditiva Condutiva Idioma: En Ano de publicação: 2018 Tipo de documento: Article