A case of postanoxic encephalopathy with cortical action and brainstem reticular reflex myoclonus.

A patient with postanoxic encephalopathy, with both action- and stimulus-sensitive reflex myoclonus, is described. The action myoclonus was multifocal and cortical in origin. In contrast, reflex myoclonus elicited by somaesthetic and auditory stimulation was generalised. The earliest reflex electrom...

Full description

Bibliographic Details
Main Authors: Brown, P, Thompson, P, Rothwell, J, Day, B, Marsden, C
Format: Journal article
Language:English
Published: 1991
_version_ 1826302521847578624
author Brown, P
Thompson, P
Rothwell, J
Day, B
Marsden, C
author_facet Brown, P
Thompson, P
Rothwell, J
Day, B
Marsden, C
author_sort Brown, P
collection OXFORD
description A patient with postanoxic encephalopathy, with both action- and stimulus-sensitive reflex myoclonus, is described. The action myoclonus was multifocal and cortical in origin. In contrast, reflex myoclonus elicited by somaesthetic and auditory stimulation was generalised. The earliest reflex electromyograph activity was recorded in the sternocleidomastoid; myoclonic activity then spread up the brainstem and down the spinal cord, suggesting that this reflex myoclonus had its origin in the caudal brainstem. Stimulus sensitivity was greatest in the limbs. The bulbospinal motor pathways involved in the generalised reflex myoclonus were rapidly conducting, and this characteristic distinguishes this form of brainstem reflex myoclonus from that described in hyperekplexia.
first_indexed 2024-03-07T05:48:49Z
format Journal article
id oxford-uuid:e8238771-6558-4457-991c-6e20cf93c8b3
institution University of Oxford
language English
last_indexed 2024-03-07T05:48:49Z
publishDate 1991
record_format dspace
spelling oxford-uuid:e8238771-6558-4457-991c-6e20cf93c8b32022-03-27T10:44:23ZA case of postanoxic encephalopathy with cortical action and brainstem reticular reflex myoclonus.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e8238771-6558-4457-991c-6e20cf93c8b3EnglishSymplectic Elements at Oxford1991Brown, PThompson, PRothwell, JDay, BMarsden, CA patient with postanoxic encephalopathy, with both action- and stimulus-sensitive reflex myoclonus, is described. The action myoclonus was multifocal and cortical in origin. In contrast, reflex myoclonus elicited by somaesthetic and auditory stimulation was generalised. The earliest reflex electromyograph activity was recorded in the sternocleidomastoid; myoclonic activity then spread up the brainstem and down the spinal cord, suggesting that this reflex myoclonus had its origin in the caudal brainstem. Stimulus sensitivity was greatest in the limbs. The bulbospinal motor pathways involved in the generalised reflex myoclonus were rapidly conducting, and this characteristic distinguishes this form of brainstem reflex myoclonus from that described in hyperekplexia.
spellingShingle Brown, P
Thompson, P
Rothwell, J
Day, B
Marsden, C
A case of postanoxic encephalopathy with cortical action and brainstem reticular reflex myoclonus.
title A case of postanoxic encephalopathy with cortical action and brainstem reticular reflex myoclonus.
title_full A case of postanoxic encephalopathy with cortical action and brainstem reticular reflex myoclonus.
title_fullStr A case of postanoxic encephalopathy with cortical action and brainstem reticular reflex myoclonus.
title_full_unstemmed A case of postanoxic encephalopathy with cortical action and brainstem reticular reflex myoclonus.
title_short A case of postanoxic encephalopathy with cortical action and brainstem reticular reflex myoclonus.
title_sort case of postanoxic encephalopathy with cortical action and brainstem reticular reflex myoclonus
work_keys_str_mv AT brownp acaseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus
AT thompsonp acaseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus
AT rothwellj acaseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus
AT dayb acaseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus
AT marsdenc acaseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus
AT brownp caseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus
AT thompsonp caseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus
AT rothwellj caseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus
AT dayb caseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus
AT marsdenc caseofpostanoxicencephalopathywithcorticalactionandbrainstemreticularreflexmyoclonus