CORTICAL MECHANISMS MEDIATING ASTERIXIS

被引：32

作者：

ARTIEDA, J ^{[1
]}

MURUZABAL, J ^{[1
]}

LARUMBE, R ^{[1
]}

DECASASOLA, CG ^{[1
]}

OBESO, JA ^{[1
]}

机构：

[1] UNIV NAVARRA,DEPT NEUROL,NEUROPHYSIOL SERV CLIN,CLIN UNIV,APDO 192,E-31080 PAMPLONA,SPAIN

来源：

MOVEMENT DISORDERS | 1992年 / 7卷 / 03期

关键词：

ASTERIXIS; CORTICAL ORIGIN; MYOCLONUS;

D O I：

10.1002/mds.870070304

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

We describe a patient with chronic renal failure who suffered multifocal action-induced jerks. Electromyography (EMG) recorded the typical silence of asterixis. Back-averaging the EEG activity preceding the EMG silent periods in the forearm showed a biphasic wave antedating the asterixis by 23 ms. Somatosensory evoked potentials (SEPs) after median nerve stimulation were pathologically enlarged on both hemispheres. Brain-mapping of the biphasic wave preceding asterixis and the giant SEPs indicated a common origin in the sensorimotor cortex. This observation provides further documentation of a cortical origin for some types of asterixis in humans.

引用

页码：209 / 216

页数：8

共 18 条

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