Combined Phenotype Ontology

Last uploaded: November 18, 2021
Preferred Name

Asterixis

Synonyms
Definitions

The examiner can test for asterixis by asking the patient to extend the arms, spread the fingers, dorsiflex the wrist and observe for the abnormal "flapping" tremor at the wrist. Asterixis represents the failure to actively maintain a position and is caused by the abnormal function of diencephalic motor centers that regulate the tone of the agonist and antagonist muscles involved in maintaining posture. A clinical sign indicating a lapse of posture and is usually manifest by a bilateral flapping tremor at the wrist, metacarpophalangeal, and hip joints.

ID

http://purl.obolibrary.org/obo/HP_0012164

comment

The examiner can test for asterixis by asking the patient to extend the arms, spread the fingers, dorsiflex the wrist and observe for the abnormal "flapping" tremor at the wrist. Asterixis represents the failure to actively maintain a position and is caused by the abnormal function of diencephalic motor centers that regulate the tone of the agonist and antagonist muscles involved in maintaining posture.

creation date

2013-02-16T10:20:08Z

creator

https://orcid.org/0000-0002-0736-9199

database_cross_reference

MSH:D020820

SNOMEDCT_US:32838008

UMLS:C0232766

definition

A clinical sign indicating a lapse of posture and is usually manifest by a bilateral flapping tremor at the wrist, metacarpophalangeal, and hip joints.

id

HP:0012164

label

Asterixis

notation

HP:0012164

prefLabel

Asterixis

subClassOf

http://purl.obolibrary.org/obo/MP_0001388

http://purl.obolibrary.org/obo/HP_0100022

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