myotonia congenita

myotonia /myo·to·nia/ (mi″o-to´ne-ah) dystonia involving increased muscular irritability and contractility with decreased power of relaxation.myoton´ic

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myotonia atro´phica  myotonic dystrophy.

myotonia conge´nita  a hereditary disease marked by tonic spasm and rigidity of certain muscles when attempts are made to move them after rest or when they are mechanically stimulated.

myotonia dystro´phica  myotonic dystrophy.

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myotonia con·gen·i·ta (kn-jn-t)

n.

A hereditary disease characterized by tonic spasm or temporary rigidity of certain muscles after an attempt has been made to move them. Also called Thomsen's disease.

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myotonia congenita

[konjen′itə]

a rare mild and nonprogressive form of myotonic myopathy evident early in life. The only effects of the disorder are hypertrophy and stiffness of the muscles. Also called Thomsen's disease.

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myotonia

any disorder involving tonic spasm of muscle.

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acquired myotonia

see pseudomyotonia.

myotonia congenita

an inherited muscle stiffness with stilted gait that worsens with excitement is observed from a few months of age in Chow Chows, Labrador retrievers and Irish terriers.

equine myotonia

is manifest with a stiff gait, hypertrophy of the proximal appendicular musculature and percussion of muscle produces sustained contraction. It may be inherited in some Quarter horse lines.

inherited congenital myotonia

a disease of goats, characterized by inability to move quickly. The limbs become rigid due to muscle contraction, but after a few minutes rest the animal is able to move normally. It is similar to myotonia congenita in humans.

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myotonia congenita

Thomsen's disease Neurology An AD or AR condition characterized by deficiency of true cholinesterase Clinical Inability of muscles to relax quickly, resulting in myotonia, gagging, dysphagia, stiff movement that improves with repetition; Pts are often muscular. See Myotonia.