Hemiplegia alternans

From WikiLectures

Alternative hemiplegia is a type of central paralysis caused by damage to the brainstem . It is manifested by contralateral hemiplegia (caused by a disorder of the corticospinal pathway before crossing) and a homolateral disorder of one of the cranial nerves. Individual hemiplegias are divided according to the place of damage.

Hemiplegia alternans superior (Weber syndrome)[edit | edit source]

Wever's syndrome

It is caused by a lesion of the mesencephalus . The oculomotor nerve (N. III.) Is damaged from the cranial nerves . Ipsilateral or homolateral paresis occurs. It is manifested by ptosis , divergent strabismus , mydriasis and photoreaction disorder. Disruption of the pyramidal pathway results in contralateral hemiplegia.

Hemiplegia alternans media (Millard-Gubler syndrome)[edit | edit source]

This type of fault damages the Varol bridge . It is manifested by homolateral peripheral paresis of the facial nerve (N. VII.) And also by contralateral hemiplegia.

Hemiplegia alternans inferior (Déjerine syndrome)[edit | edit source]

It occurs during an lesion of the elongated spinal cord . It is manifested by paresis of the hypoglossus nerve (N. XII.) , Which is ipsilateral. Symptoms include impaired tongue movement, atrophy, and tongue fibrillation. There is also contralateral hemiplegia with impaired sensitivity.

Links[edit | edit source]

Related articles[edit | edit source]

Source[edit | edit source]

  • VOKURKA, Martin – HUGO, Jan, et al. Velký lékařský slovník [online] 8. edition. Praha : Maxdorf, 2009. 1144 pp. Available from <http://lekarske.slovniky.cz/>. ISBN 978-80-7345-166-0.

References[edit | edit source]

  • SEIDL, Zdeněk. Neurologie pro studium i praxi. 2. edition. Praha : Grada, 2015. ISBN 978-80-247-5247-1.