hyporeflexia

反射低下、反射減弱

関

abnormal reflex、absent deep tendon reflex、absent gag reflex、absent reflex、decreased gag reflex、decreased reflex、hyperreflexia、pendular reflex

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/23 02:19:36」(JST)

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[Wiki en表示]

Hyporeflexia is the condition of below normal or absent reflexes (areflexia). It can be tested for by using a reflex hammer. It is the opposite of a condition called hyperreflexia. Hyporeflexia is generally associated with a lower motor neuron deficit (at the alpha motor neurons from the spinal cord to muscle), whereas hyperreflexia is often attributed to upper motor neuron lesions (along the long motor tracts from the brain). The upper motor neurons are thought to be inhibitory of the reflex arc, which is formed by sensory neurons from intrafusal fibers of muscles, lower motor neurons (including alpha and gamma motor fibers) and appurtenant interneurons. Therefore, damage to lower motor neurons will subsequently lead to hyporeflexia and/or areflexia.

Note that in spinal shock, which is commonly seen in transection of the spinal cord (Spinal cord injury), areflexia can occur transiently below the level of the lesion and after a period of time become hyperreflexic.

See also

• Hyperreflexia, exaggerated reflexes.
• MEGF10

UpToDate Contents

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English Journal

• Detection of isolated covert saccades with the video head impulse test in peripheral vestibular disorders.

• Blödow A, Pannasch S, Walther LE.SourceDepartment of Otorhinolaryngology, Head and Neck Surgery and Communication Disorders, Helios-Clinic Berlin-Buch, Germany.
• Auris, nasus, larynx.Auris Nasus Larynx.2013 Aug;40(4):348-51. doi: 10.1016/j.anl.2012.11.002. Epub 2012 Dec 11.
• OBJECTIVES: The function of the semicircular canal receptors and the pathway of the vestibulo-ocular-reflex (VOR) can be diagnosed with the clinical head impulse test (cHIT). Recently, the video head impulse test (vHIT) has been introduced but so far there is little clinical experience with the vHIT
• PMID 23245835

• Myofascial trigger point, falls in the elderly, idiopathic knee pain and osteoarthritis: An alternative concept.

• Nguyen BM.SourceDarebin Community Health Service, Department of Podiatry, 125 Blake Street, East Reservoir, Victoria 3073, Australia. Electronic address: bnguyen@vahs.org.au.
• Medical hypotheses.Med Hypotheses.2013 Jun;80(6):806-9. doi: 10.1016/j.mehy.2013.03.016. Epub 2013 Apr 6.
• Knee malalignment and associated pathological abnormal forces transmitted through the knee is thought to provoke joint protective mechanism in reflex arthrogenous muscle inhibition (AMI) and the start of the idiopathic knee osteoarthritis process. The current prevailing hypothesis is AMI initiates q
• PMID 23566656

Japanese Journal

• Rapidly Progressive Guillain-Barre Syndrome Following Escherichia coli Infection

• Kono Yuriko,Nishitarumizu Kazutaka,Higashi Takuya,Funakoshi Kei,Odaka Masaaki
• Internal Medicine 46(9), 589-591, 2007
• … She was diagnosed with GBS on the basis of acute flaccid paralysis, hyporeflexia, nerve conduction studies (reduced amplitude of compound muscle action potentials), and high titers of IgG antibodies to GM1 and GalNAc-GD1a. …
• NAID 130000078719

• Catharticinduced Fatal Hypermagnesemia in the Elderly

• Onishi Sachiko,Yoshino Shunpei
• Internal Medicine 45(4), 207-210, 2006
• … Hypermagnesemia should be considered in elderly patients presenting with hypotension, bradycardia, hyporeflexia, or respiratory depression, and particularly in patients with abnormal renal function or small bowel hypomotility. …
• NAID 130000076572

• Type 1 Diabetes Mellitus and Drug-resistant Epilepsy : Presence of High Titer of Anti-Glutamic Acid Decarboxylase Autoantibodies in Serum and Cerebrospinal Fluid

• Yoshimoto Takanobu,Doi Masaru,Fukai Nozomi [他],IZUMIYAMA Hajime,WAGO Takehiko,MINAMI Isao,UCHIMURA Isao,HIRATA Yukio
• Internal medicine 44(11), 1174-1177, 2005-11-01
• … Neurological examination on admission revealed hyporeflexia in bilateral upper and lower extremities without any muscle rigidity, painful spasm or cerebellar ataxia. …
• NAID 10016886104

Related Links

• Hyporeflexia - RightDiagnosis.com - Right Diagnosis

List of 131 disease causes of Hyporeflexia, patient stories, diagnostic guides. Diagnostic checklist, medical tests, doctor questions, and related signs or symptoms for Hyporeflexia. ... Hyporeflexia: Introduction Hyporeflexia: A ...

• Hyporeflexia | definition of hyporeflexia by Medical dictionary

hyporeflexia [hi″po-re-flek´se-ah] diminution or weakening of reflexes. hy·po·re·flex·i·a (hī'pō-rē-flek'sē-ă), A condition in which the reflexes are weakened. Reduction of the deep tendon reflexes may be generalized, regional, or focal.

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★リンクテーブル★

リンク元	「absent reflex」「反射減弱」「hyperreflexia」「absent gag reflex」「decreased gag reflex」

「absent reflex」

　　[★]

• 反射消失

関

abnormal reflex、absent deep tendon reflex、absent gag reflex、areflexia、decreased gag reflex、decreased reflex、hyperreflexia、hyporeflexia、pendular reflex

「反射減弱」

　　[★]

英

hyporeflexia、decreased reflex

関

反射消失、反射低下、反射亢進、反射異常、深部腱反射消失、咽頭反射消失、咽頭反射減弱、振子反射

「hyperreflexia」

　　[★]

• n.

• 反射亢進

関

abnormal reflex、absent deep tendon reflex、absent gag reflex、absent reflex、decreased gag reflex、decreased reflex、hyporeflexia、pendular reflex

「absent gag reflex」

　　[★]

• 咽頭反射消失

関

abnormal reflex、absent deep tendon reflex、absent reflex、decreased gag reflex、decreased reflex、hyperreflexia、hyporeflexia、pendular reflex

「decreased gag reflex」

　　[★]

• 咽頭反射減弱

関

abnormal reflex、absent deep tendon reflex、absent gag reflex、absent reflex、decreased reflex、hyperreflexia、hyporeflexia、pendular reflex