encyclopedia of medical concepts
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Spasm

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Definition: An involuntary contraction of a muscle or group of muscles. Spasms may involve SKELETAL MUSCLE or SMOOTH MUSCLE.  GEN or unspecified only; coord IM with specific organ/dis (IM); spasms in infants: index SPASMS, INFANTILE if an epileptic seizure (see MeSH definition) or SPASM + INFANT if non-epileptic such as in tetany or vitamin defic; "facial spasm"   
See Also Muscle Cramp; Muscle Spasticity
Examples Hemifacial Spasm; Trismus 		Other names Muscle Spasm; Spasms, Muscular; Spasms, Muscle; Spasms, Generalized; Spasms, Ciliary Body; Spasm, Muscular; Spasm, Muscle; Muscular Spasms; Muscle Spasms; Generalized Spasms; Generalized Spasm; Ciliary Body Spasms; Ciliary Body Spasm; Spasm, Generalized; Spasm, Ciliary Body; Muscular Spasm; Spasms
 
SubstanceCAS Registry & nameCategoriesSource
Behr syndrome  0   *Spasm *Ataxia *Intellectual Disability *Optic Atrophy/congenital *Hearing Loss.
Satoyoshi syndrome  0   *Spasm *Alopecia *Diarrhea Bone and Bones/abnormalities.

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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