(medicine) A condition of abnormally increased reflex action.
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McGraw-Hill Science & Technology Dictionary:
hyperreflexia |
(medicine) A condition of abnormally increased reflex action.
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American Heritage Stedman's Medical Dictionary:
hy·per·re·flex·i·a |
Saunders Veterinary Dictionary:
hyperreflexia |
Exaggeration of reflexes.
Wikipedia on Answers.com:
Hyperreflexia |
| ICD-10 | R29.2 |
|---|---|
| ICD-9 | 796.1 |
| MeSH | D012021 |
Hyperreflexia is defined as overactive or overresponsive reflexes. Examples of this can include twitching or spastic tendencies, which are indicative of upper motor neuron disease as well as the lessening or loss of control ordinarily exerted by higher brain centers of lower neural pathways (disinhibition). See Autonomic dysreflexia.
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Contents
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The most common cause of hyperreflexia is spinal cord injury (see autonomic dysreflexia). Standard stimuli like the filling of the bladder can cause excessive responses from the nervous system, such causes are not known.
But hyperreflexia can be developed via many other causes, including medication and stimulant side effects, hyperthyroidism, electrolyte imbalance, serotonin syndrome and severe brain trauma.
Treatment depends on diagnosing the specific pathology causing this symptom. Should it be caused by use of stimulants or other substances, then it may involve removing these drugs from use.
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![]() | McGraw-Hill Science & Technology Dictionary. McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
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![]() | American Heritage Stedman's Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
![]() | Saunders Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more | |
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![]() | Wikipedia on Answers.com. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Hyperreflexia. Read more |