spasm

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Related to Muscle spasms: Muscle twitch

spasm,

involuntary rigid muscle contraction, often persistent and often accompanied by pain. It usually has some underlying physical cause such as disease, strain, or injury to the muscle or nearby tissues, impairment of circulation, or a disturbance of body chemistry. The spasm may be confined to one group of muscles or it may be severe and fairly generalized, as in convulsionsconvulsion,
sudden, violent, involuntary contraction of the muscles of the body, often accompanied by loss of consciousness. It is not known what causes the abnormal impulses from the brain that result in convulsive seizures, since the disturbance may arise in normal brain
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. Painless localized spasms are called tics. These purposeless movements, usually of some part of the face, may begin as purposeful movement in response to some stimulus but eventually are carried out automatically, apparently without reason. They may disappear spontaneously after a time, or may require the elimination of some physical or psychic cause.

Spasm

 

an involuntary tonic contraction (cramp) of a muscle or group of muscles. Spasms may affect striated skeletal muscles (for example, with certain paralyses) or smooth muscles. Subject to spasms are the smooth muscles of the vascular wall (for instance, during angina pectoris), the bronchi, the esophagus (cardiospasm), and the intestine. Skeletal-muscle spasms make movement difficult, and smooth-muscle spasms disrupt various functions of organs.


Spasm

 

a sudden involuntary muscular contraction marked by extreme tension. Two types of spasms are distinguished: tonic and clonic. In tonic spasm, the tension persists for a long time, and in clonic spasm, there are synchronous jerking muscular contractions, which may be diffuse or limited. Spasms of different muscle groups are designated by specific terms, for example, trismus (spasm of the masticatory muscles) and blepharospasm (spasm of the ring muscle of the eye). Clonic spasms of the entire body are sometimes called convulsions.

Spasm may arise spontaneously or as a reaction to external influences, for example, spasm of the gastrocnemius muscles after chilling in water. It may also result from internal influences, for example, tension of the abdominal muscles in peritonitis. Spasm may be a manifestation of epilepsy, eclampsia, spasmophilia, inflammation, brain tumor and trauma, and many other disorders. In addition to spasm of striated muscles, there is spasm of smooth muscles, for example, cardiospasm and pylorospasm. In children, spasm is most common at a very early age, owing to the structure and functioning of the brain at this stage of life; it results from infection, poisoning, trauma, and various psychogenic factors.

Spasm is treated by caring for the underlying disorder and by administering such anticonvulsants as phenobarbital, primidone, and diphenylhydantoin. The affected person should get sufficient sleep and should abstain from alcohol.

V. A. KARLOV

spasm

[′spaz·əm]
(medicine)
An involuntary and abnormal contraction of isolated bundles of muscle or groups of muscles resulting from a chemical imbalance due to fatigue, ischemia, or trauma.

spasm

an involuntary muscular contraction, esp one resulting in cramp or convulsion
References in periodicals archive ?
Patients presenting with pain associated with skeletal muscle spasms attending the outpatient Department of Orthopaedics of a tertiary health-care center in Aurangabad from June 2013 to June 2014 were recruited in trial.
The best position to help you sleep and reduce muscle spasms is lying on your side with a small pillow or folded towel placed between your knees.
The possibility of postoperative muscle spasm was thought of and we decided to give epidural domdine.
For severe pain, your GP may prescribe aa stronger painkiller such as tramadol, andstronger painkiller such as tramadol, and a short-term muscle relaxant (usually diazepam) for severe muscle spasm.
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German-based midfielder Ferydoon Zandi (Kaiserslautern) will miss the game with muscle spasms and flu.
Who is prepared for chronic back pain and crippling muscle spasms that take your breath away, and the inability to walk any distance?
Botox is successfully used to treat conditions such as spasm of the neck, cross eyes and cervical dystonia, a condition that causes involuntary muscle spasms or contractions.
Edward Villella, artistic director of Miami City, Ballet, had to retire from Balanchine's class for a long period owing to muscle spasms.
Bowen Therapy can help by using gentle muscle manipulation over certain points of the body, bringing relief to muscle spasms and tension, boosting the circulation and lymphatic systems and helping to relax your horse.
At Cedars-Sinai Medical Center in Los Angeles, researchers found massage reduced muscle spasms in patients who had just undergone heart surgery.
Twelve women with pelvic floor muscle spasms and at least a 2-year history of undergoing multiple treatments for chronic pelvic pain were treated with injections of botulinum toxin type A (Botox) in the levator ani muscles.