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SA Sx > Laryngeal Trauma > Flashcards

Laryngeal Trauma Flashcards

1
Q

What kind of trauma can commonly lead to laryngeal damage?

A

Cervical trauma

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2
Q

When is a laryngeal exam performed?

A

All patients showing signs of upper airway obstruciton

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3
Q

What is the pathophysiology of laryngeal paralysis?

A

Dysfunction/damaged vagus n. and branches –> cricoarytenoideus dorsalis m. –> failure of arytenoids to abduct on inspiration

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4
Q

What breeds are congenitally predisposed to laryngeal paralysis?

A

Bouvier de Flandres, huskies, bull terries, dalmatians

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5
Q

What is congenital laryngeal paralysis associated with?

A

Cranial tibial muscle paralysis

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6
Q

What breed has progressive generalized degenerative laryngeal paralysis?

A

Rottweilers- commonly at 11-13 weeks of age

Grave prognosis

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7
Q

What is the poster child for acquired laryngeal paralysis?

A

Labrador Retriever

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8
Q

What is the term for the generalized neuropathy associated with acquired laryngeal paralysis?

A

Geriatric onset laryngeal paralysis polyneuropathy

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9
Q

What is the most common cause of acquired laryngeal paralysis?

A

Idiopathic polyneuropathy

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10
Q

What are potential factors that play a role in idiopathic polyneuropathy?

A 
Hypothyroid
Trauma
Immune mediated
Infectious
Toxin
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11
Q

What are the different dx tests ran for laryngeal paralysis patient?

A 
Thoracic rads (3 views)
Lateral cervical rads
MDB/T4
Esophagographic evaluation
Laryngeal exam
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12
Q

What is the recommended tx for laryngeal paralysis?

A

Unilateral arytenoid lateralization- regardless of severity, always recommended

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13
Q

T/F: Once a unilateral arytenoid lateralization has been performed on a patient, they can never swim again

A

TRUE

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14
Q

What complication can excessive tension of the arytenoids cause?

A

Aspiration pneumonia- poor coverage of rimma glottidis

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15
Q

What is the goal of unilateral arytenoid lateralization?

A

Unilateral low tension

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16
Q

Which muscles are responsible for laryngeal abduction?

A

Cricoarytenoideus dorsalis muscle

17
Q

What is the cricoarytenoideus dorsalis m. innervated by?

A

Recurrent laryngeal nerve and caudal laryngeal nerve

18
Q

What are CS of laryngeal dz?

A 
STRIDOR
Exercise intolerance
Gagging/dysphagia
Coughing
Dysphonia (voice change)
Dyspnea

SA Sx (22 decks)

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