These techniques can be done through a transmastoid or a middle fossa craniotomy approach. Int J Peditr Otorhinolaryngol. Retrospective radiological study. Facial nerve canal dehiscence in chronic otitis media without cholesteatoma. Abstract The aim of this retrospective study was to determine the incidence of facial canal dehiscence FCD in primary and revision cholesteatoma surgery in a tertiary referral center. Dehiscence, Facial canal, Chronic otitis media, Cholesteatoma. In the age group under 4 years,
Incidence of Facial Nerve Canal Dehiscence in Primary and Revision Cholesteatoma Surgery
The radiographic prevalence of geniculate ganglion dehiscence in normal and congenitally thin temporal bones. Horizontal semicircular canal dehiscence is most frequently the result of an eroding process such as cholesteatoma. Surg Radiol Anat, 18 , pp. It extends from the fundus of the internal auditory canal to the geniculate ganglion. SCDS can affect both hearing and balance, to different extents in different people and symptoms may include autophony person's own speech or other self-generated noises, e. On the other hand, one of unpleasant intra-operative complications of COM surgery is facial nerve trauma.
Conductive Hearing Loss Due to a Dehiscent Facial Nerve
Yellowish bundle-like structure is placed at postero-superior quadrant. But Li and Cao detected it as These patients ranged in age from 3 to 92 years. P, posterior canal wall; A, anterior canal wall. Internal auditory canal MRI demonstrated no anomalies in the inner ear Fig.
A retrospective study done at our ent center consists of patients undergoing various middle ear surgery. The dehiscence was present in the tympanic portion of the facial nerve in the vast majority of patients. On the other hand, an important strength of this study was the relatively large population under the study. In addition, there was association between some preoperative or intra-operative findings of COM, such as middle fossa dural dehiscence, external auditory canal polyp, facial nerve paralysis, labyrinthine fistula, and FCD. The facial nerve is completely exposed and located anterior to the stapes. What's your work setting? The prevalence of chronic otitis media and its complication rates in teenagers and adult patients.