Laryngeal Paralysis (Congenital)
Congenital laryngeal paralysis occurs through neurodegeneration of the recurrent laryngeal nerve which innervates the cricoarytenoideus dorsalis muscle resulting in the arytenoid cartilages not abducting normally.
Age of Onset: Less than 3 years of age (mean onset of 6 months)
Sex Predisposition: Any sex of animal can be affected
Clinical Course:
Clinical signs may worsen over time
Clinical signs may worsen over time
Clinical Signs:
Movement
Collapse
Weakness
Exercise intolerance
Special Functions (e.g. respiration; urination)
Dyspnea
Inspiratory stridor
Muscle Atrophy
Atrophy of cricoarytenoideus dorsalis - not apparent on clinical examination
Other
Cough
Hoarse bark
Noisy breathing (wheezing)
Overheating
Movement
Collapse
Weakness
Exercise intolerance
Special Functions (e.g. respiration; urination)
Dyspnea
Inspiratory stridor
Muscle Atrophy
Atrophy of cricoarytenoideus dorsalis - not apparent on clinical examination
Other
Cough
Hoarse bark
Noisy breathing (wheezing)
Overheating
Peripheral nerve/muscle
Increased frequency in Alaskan Huskies with blue eye coloration
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