関: 感覚過敏

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/09/26 16:43:26」(JST)

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Hyperesthesia (or hyperaesthesia) is a condition that involves an abnormal increase in sensitivity to stimuli of the sense. "When a non-noxious stimulus causes the sensation of pain the area will be termed hyperaesthetic".^[1] Stimuli of the senses can include sound that one hears, foods that one tastes, textures that one feels, and so forth. Increased touch sensitivity is referred to as "tactile hyperesthesia", and increased sound sensitivity is called "auditory hyperesthesia". Tactile hyperesthesia may be a common symptom of many neurologic disorders such as herpes zoster, peripheral neuropathy and radiculopathies. In 1979, and then in 1994, Merskey, Bogduk, Noordenbos, Devor and others (a subcommittee of International Association for the Study of Pain) proposed, instead of hyperaestheia the concept of allodynia, meaning "other pain", is a pain due to a stimulus which does not normally provoke pain.^[2]

In animals

Feline Hyperesthesia Syndrome is an uncommon but recognized condition in cats, particularly Siamese, Burmese, Himalayan, and Abyssinian cats. It is also a symptom in dogs that have canine distemper disease (CD) caused by canine distemper virus (CDV).

References

^ Noordenbos, W. (1959). PAIN Problems pertaining to the transmission of nerve impulses which give rise to pain. Amsterdam : Elsevier
^ Merskey & Bogduk (Eds.) Classification of Chronic Pain. Seattle: IASP Task Force on Taxonomy, 1994

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Japanese Journal

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Anesthesia Procedure for Congenital Insensitivity to Pain in a Child with Anhidrosis Syndrome: A Rare Case

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Related Pictures

★リンクテーブル★

リンク元	「疼痛」「hypersensitive」「感覚異常」「hyperesthetic」「感覚過敏」
拡張検索	「thermal hyperesthesia」「tactile hyperesthesia」「thermohyperesthesia」「cutaneous hyperesthesia」

「疼痛」

Hyperesthesia
	Classification and external resources
ICD-10	R20.3
ICD-9	782.0
DiseasesDB	30788
MeSH	D006941

　　[★]

英: pain, dolor
同: 痛み
関: 痛覚 pain sensation

疼痛

疼痛の伝達

Aδ線維
C線維

疼痛の調節

ゲートコントロール：Aδ線維とC線維による痛みはAβ線維による入力で中枢伝達細胞のレベルで抑制される。
下行性疼痛抑制系神経系：下行性疼痛抑制系神経系による入力で中枢伝達細胞のレベルで抑制される。

下行性疼痛抑制系神経系は中脳水道周辺灰白質からの脊髄への入力からなる。具体的には大縫線核(セロトニン作動性)、巨大細胞網様核・傍巨大細胞網様核(ノルアドレナリン作動性)がの2系統が起点となる。抗うつ薬はこれらの神経伝達物質の再吸収を妨げ鎮痛作用を発揮する。

痛みと異常知覚の命名法

Adams and s Principles of Neurology, Ninth Edition Allan Ropper. table 8-2より抜粋

dysesthesia : Any abnormal sensation described as unpleasant by the patient.
hyperalgesia : Exaggerated pain response from a normally painful stimulus; usually includes aspects of summation with repeated stimulus of constant intensity and aftersensation.
hyperpathia : Abnormally painful and exaggerated reaction to a painful stimulus; related to hyperalgesia.
hyperesthesia (hypesthesia) : Exaggerated perception of touch stimulus.
allodynia : Abnormal perception of pain from a normally nonpainful mechanical or thermal stimulus; usually has elements of delay in perception and of aftersensation.
hypoalgesia (hypalgesia) : Decreased sensitivity and raised threshoid to painful stimuli.
anesthesia : Reduced perception of all sensation, mainly touch.
pallanesthesia : Loss of perception of vibration.
analgesia : Reduced perception of pain stimulus.
paresthesia : Mainly spontaneous abnormal sensation that is not unpleasant; usually described as "pins and needles".
causalgia : Buming pain in the distribution of one or more peripheral nerves.