What does ataxic hemiparesis mean?
Ataxic hemiparesis (AH) is characterized by the simultaneous presence of a pyramidal tract syndrome with homolateral ataxic syndrome. In the first description of AH by Fisher and Cole (1965), they elaborated the core symptoms as weakness and pyramidal signs on one side combined with ipsilateral cerebellar-like ataxia.
What is lacunar ataxic hemiparesis?
Conclusions: Ataxic hemiparesis is a distinct clinical syndrome that accurately predicts a small deep infarction, most commonly in the pons or internal capsule. Only sensory loss accurately predicts a capsular localization. Etiology in nearly half of the cases can be attributed to small-vessel disease.
What is Laci stroke?
Lacunar stroke or lacunar cerebral infarct (LACI) is the most common type of ischaemic stroke, resulting from the occlusion of small penetrating arteries that provide blood to the brain’s deep structures.
What causes Ataxic hemiparesis?
Introduction Ataxic hemiparesis consists of hemiparesis and so-called cerebellar ataxia on the same side of the body [1], The syndrome is usually caused by lacunar infarction in the contralateral posterior limb of the internal capsule, in the pons or the corona radiata, and, less frequently, by infarction in the …
What is corona radiata?
Definition of corona radiata 1 : the zone of small follicular cells immediately surrounding the ovum in the graafian follicle and accompanying the ovum on its discharge from the follicle. 2 : a fan-shaped mass of white matter fibers passing to and from the cerebral cortex.
What is lacunar syndrome?
Lacunar syndromes are clinical manifestations of lacunar infarctions. Lacunar infarctions are defined as small subcortical lesions with a size of less than 15 mm in diameter caused by occlusion of a penetrating artery from a large cerebral artery, most commonly from the Circle of Willis.
What ataxia means?
Ataxia is typically defined as the presence of abnormal, uncoordinated movements. This usage describes signs & symptoms without reference to specific diseases. An unsteady, staggering gait is described as an ataxic gait because walking is uncoordinated and appears to be ‘not ordered’.
What are the causes of hemiparesis?
3 The most common causes of hemiparesis are the following:
- Stroke.
- Multiple sclerosis.
- Traumatic injury: May affect the brain, spine or nerves.
- Congenital medical conditions such as cerebral palsy that are present from birth.
- Spine disease.
- A tumor of the brain or spine.
- Infection of the brain, spine or meninges.