Myokymia
Myokymia consists of wave-form or “serpent-like” movements of the skin due to contraction of thin cutaneous muscles. Myokymia may also be associated with neuromyotonia which is characterized by repetitive contraction of muscle fibers secondary to hyperexcitability of peripheral neurons. Muscles affected may be focal to one limb or diffusely affecting all limbs.
Myokymia may also be associated with post-radiation therapy at the site of therapy.
Myokymia may also be associated with post-radiation therapy at the site of therapy.
Age of Onset: Any age can be affected, onset most commonly occurs in younger dogs (Less than 3 years of age)
Sex Predisposition: Any sex of animal can be affected
Clinical Course:
Episodes of vermiform movements may progress into prolonged muscle stiffness and collapse.
Episodes of vermiform movements may progress into prolonged muscle stiffness and collapse.
Clinical Signs:
*Clinical signs reflect the location and muscle groups affected. In this case report, a Maltese developed myokymia involving the palatolingual muscles, which resulted in secondary effects on normal respiratory function.
Posture and Appearance
Vermiform movements of the affected muscle group
Movement
Muscle stiffness/Delayed muscle relaxation
*Collapse
Special functions
*Secondary inspiratory stridor
*Exertional dyspnea and cyanosis
*Clinical signs reflect the location and muscle groups affected. In this case report, a Maltese developed myokymia involving the palatolingual muscles, which resulted in secondary effects on normal respiratory function.
Posture and Appearance
Vermiform movements of the affected muscle group
Movement
Muscle stiffness/Delayed muscle relaxation
*Collapse
Special functions
*Secondary inspiratory stridor
*Exertional dyspnea and cyanosis
Neuromuscular
Unknown
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