Paradoxical Pseudomyotonia
Paramyotonia congenita (Paradoxical myotonia) occurs due to altered neuronal membrane excitability resulting in transient episodes of persistent muscle contraction and stiffness.
Pseudomyotonia is a disorder characterized by nonpainful muscle stiffness resulting from a defect in Ca2+ ion movement at the end of muscle contraction, resulting in delayed muscle relaxation.
Pseudomyotonia is a disorder characterized by nonpainful muscle stiffness resulting from a defect in Ca2+ ion movement at the end of muscle contraction, resulting in delayed muscle relaxation.
Age of Onset: 3 months - 2 years of age
Sex Predisposition: Any sex of animal can be affected
Clinical Course:
Clinical signs are transient, non-progressive, and recurrent. Often associated with exercise, excitement, and temperature extremes. Episodes commonly last a few seconds and spontaneously resolve with rest
Clinical signs are transient, non-progressive, and recurrent. Often associated with exercise, excitement, and temperature extremes. Episodes commonly last a few seconds and spontaneously resolve with rest
Clinical Signs:
Posture and Appearance
Generalized muscle stiffness
Lateral recumbency
Collapse
Movement
“Stiff” gait
Special Functions (e.g. respiration; urination)
Apnea and cyanosis
Muscle Atrophy
Appendicular muscle hypertrophy
Posture and Appearance
Generalized muscle stiffness
Lateral recumbency
Collapse
Movement
“Stiff” gait
Special Functions (e.g. respiration; urination)
Apnea and cyanosis
Muscle Atrophy
Appendicular muscle hypertrophy
Diffuse neuromuscular
Autosomal recessive SLC7A10 gene mutation
For breed specific genetic testing, click the link below:
www.cagt.co.uk/product/paradoxical-pseudomyotonia/
www.laboklin.co.uk/laboklin/showGeneticTest.jsp?testID=8933
labogen.com/en/2024/07/09/genetic-test-for-paradoxical-pseudomyotonia-in-the-english-springer-spaniel-and-english-cocker-spaniel/
For breed specific genetic testing, click the link below:
www.cagt.co.uk/product/paradoxical-pseudomyotonia/
www.laboklin.co.uk/laboklin/showGeneticTest.jsp?testID=8933
labogen.com/en/2024/07/09/genetic-test-for-paradoxical-pseudomyotonia-in-the-english-springer-spaniel-and-english-cocker-spaniel/
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