Hyperreflexia: Definition from Answers.com

Hyperreflexia
ICD-10	R 29.2
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.

Contents

1 Causes
2 Treatment
3 See also
4 External links

Causes

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

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.

External links

NIH/Medline
DDB 20760

This medical symptom article is a stub. You can help Wikipedia by expanding it.

Symptoms and signs: nervous and musculoskeletal systems (R25–R29, 781.0, 781.2–9)

Primarily nervous system

Primarily CNS

Movement disorders	Dyskinesia: Athetosis · Tremor · Dyskinesia

Gait abnormality	Scissor gait · Cerebellar ataxia · Festinating gait · Propulsive gait · Stomping gait · Spastic gait · Magnetic gait

Lack of coordination	Dyskinesia: Ataxia (Cerebellar ataxia/Dysmetria, Sensory ataxia) Dysdiadochokinesia · Asterixis

Other	Abnormal posturing: Opisthotonus Perceptual disorder: Hemispatial neglect Facial weakness · Hyperreflexia · Pronator drift

Primarily PNS

Gait abnormality	Steppage gait · Antalgic gait

Primarily muscular

Movement disorders	Spasm (Trismus) · Fasciculation · Fibrillation · Myokymia · Cramp

Gait abnormality	Myopathic gait · Trendelenburg gait · Pigeon gait

Other	Tetany · Meningism

Primarily skeletal

Rachitic rosary · Clubbing

Primarily joint

Joint locking

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

M: PNS

anat(h/r/t/c/b/l/s/a)/phys(r)/devp/prot/nttr/nttm/ntrp

noco/auto/cong/tumr, sysi/epon, injr

proc, drug(N1B)

M: MUS, DF+DRCT

anat (h/n, u, t/d, a/p, l)/phys/devp/hist

noco(m, s, c)/cong(d)/tumr, sysi/epon, injr

proc, drug (M1A/3)

M: BON/CAR

anat(c/f/k/f, u, t/p, l)/phys/devp/cell

noco/cong/tumr, sysi/epon, injr

proc, drug(M5)

M: JNT

anat(h/c, u, t, l)/phys

noco(arth/defr/back/soft)/cong, sysi/epon, injr

proc, drug(M01C, M4)

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Hyperreflexia

hyperreflexia

hy·per·re·flex·i·a

hyperreflexia

Hyperreflexia

Causes

Treatment

See also

External links