Laryngeal Paralysis
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:
Congenital: Less than 3 years of age
Aquired: More likely to affect dogs greater than 7 years of age, however, any age of animal can be affected
Congenital: Less than 3 years of age
Aquired: More likely to affect dogs greater than 7 years of age, however, any age of animal can be affected
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
Special Functions (e.g. respiration; urination)
Dyspnea
Exercise intolerance
Inspiratory stridor
Muscle Atrophy
Atrophy of cricoarytenoideus dorsalis - no apparent on clinical examination
Other
Cough
Hoarse bark
Noisy breathing (wheezing)
Movement
Collapse
Weakness
Special Functions (e.g. respiration; urination)
Dyspnea
Exercise intolerance
Inspiratory stridor
Muscle Atrophy
Atrophy of cricoarytenoideus dorsalis - no apparent on clinical examination
Other
Cough
Hoarse bark
Noisy breathing (wheezing)
Peripheral nerve and muscle
Unknown
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