Otitis Media-Interna Flashcards
What are the borders of the inner ear?
Temporal bone, eustachian tube, vestibular window
What are the ossicles in the middle ear?
Malleus, incus, stapes
Which ossicle transmits sound?
Stapes
How does the septum of the middle ear differ in dogs vs cats?
Complete in cats and creates 2 compartments
What are the borders of the inner ear?
Internal acoustic meatus, petrous temporal bone, vestibular window
What are the main structures of the inner ear?
3 semicircular canals, cochlea, and vestibule
Which CNs pass through the internal acoustic meatus?
Facial (CN 7) and vestibulocochlear (CN 8)
What are clinical signs of otitis media-interna?
Pain w/opening mouth, hearing loss, vestibular signs
What are diagnostics standard for an otoscopic exam?
Ear cytology and culture
Procedure in which you puncture the tympanic membrane in order to get a middle ear culture/cytology sample
Myringotomy
What is a BAER?
Used to ddx peripheral vs central vestibular disease
What are the best imaging modalities for middle/inner ear disease?
MRI/CT
Which advanced imaging modality is better for diagnosing other neuro problems that can present with vestibular signs?
MRI
How do you treat otitis media-interna?
Systemic meds, anti-inflammatories, anti-emetics, surgical correction
What surgical treatments are there for otitis media-interna?
TECA-BO, vertical wall ablation, lateral wall resection
