Term
| What is the function of the facial nerve? |
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Definition
| -motor to mm of facial expression |
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Term
| What clinical tests do we use for facial nerve? |
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Definition
-efferent for palpebral menace, corneal relfex
-observe spontaneous blinking |
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Term
| If you have facial nerve signs + midder ear what other things are involved? |
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Definition
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Term
| If you have facial + HOrner's syndrome + venstibular where is the dz? |
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Definition
| -inner (vestibular) AND middle (facial + Horner's) |
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Term
| What is the typical history/signalment of idiopathic facial nerve paralysis (IFNP)? |
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Definition
-acute onset?
-cockers predisposed
-yound to middle age dogs |
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Term
| What clinical signs do we see w/ idiopathic facial nerve paralysis? |
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Definition
-inability to blink
-absent palpebral
-wide palpebral fissure
-drool on side of lesion
-drooping ear/lip
-dry eye
-hemifacial spasm
-facial contractures |
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Term
| What diagnostics do we run on otitis media/middle ear dz? |
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Definition
-otoscopy bulla rads
-CT of bulla |
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Term
| What metabolic thing sometimes occurs w/ hemifacial paralysis? |
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Definition
-hypothyroidism
-T4, free T4, TSH levels |
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Term
| What diagnostics do we do for fx of petrous temporal bone? |
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Definition
-trauma
-rads/CT
-physical exam |
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Term
| Why would we do tensilin test ofr IFNP? |
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Definition
|
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Term
|
Definition
-glucocorticoids
-thyrois supplementation
-tear supplements for KCS |
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Term
| What is the prognosis for IFNP? |
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Definition
-conservative for complete recovery
-tolerate deficits well b/c unilateral |
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Term
| What are the functions of the trigeminal nerve? |
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Definition
-sensory to: face, gums, cornea, nose
-motor to: mm of mastication |
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Term
| What tests are for trigeminal nerve? |
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Definition
| -afferent to: corneal, palpebral, retractor oculi reflex, nasal mucosa stimulation |
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Term
| What deficits clinicla signsdue to trigeminal n? |
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Definition
-peracute onset of dropped jaw
-sensory deficits rare
-rare to see other CN involvement
-cannot prehend food but can swallow
-may develop severe muscle atrophy |
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Term
| What are the differentials for mandibular paralysis? Tests? |
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Definition
-Masticatory myositis: MMM Ab test, m biopsy
-RAbies or Neospora: other neuro sigs, titers
-Neoplasia: MRO
-Cranial n neuritis: MRI
-Fx: rads |
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Term
| How do we treat mandibular paralysis? Prognosis? |
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Definition
-supportive care +/- steroids
-major improvement in 7d, all recover in 3-4w muscle mass will return |
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