Hemisensory Syndrome: Difference between revisions
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Stroke was the cause for 3% in one study,<ref>{{#pmid:12876246}}</ref>, and 22% in another study.<ref>{{#pmid:33906637}}</ref> In the later study, symptom onset of under 24 hours was the strongest predictor of ischaemic stroke (OR 31.4). A history of smoking (OR 7.3) and to a lesser extent older age (OR 1.14) was also more common in those with ischaemic stroke. | Stroke was the cause for 3% in one study,<ref>{{#pmid:12876246}}</ref>, and 22% in another study.<ref>{{#pmid:33906637}}</ref> In the later study, symptom onset of under 24 hours was the strongest predictor of ischaemic stroke (OR 31.4). A history of smoking (OR 7.3) and to a lesser extent older age (OR 1.14) was also more common in those with ischaemic stroke. | ||
==References== | |||
[[Category:Neurology]] | |||
Revision as of 08:22, 19 August 2021
The hemisensory syndrome refers to having an altered sensation on one side of the body. There is no weakness, homonymous hemianopia, aphasia, agnosia, or apraxia.
Classification
- Complete hemisensory syndrome: affects the entire face, arm, and leg. The trunk may or may not be involved.
- Incomplete hemisensory syndrome: includes variants such as cheiro-oral-cural syndrome, cheiro-oral syndrome, and isolated oral syndrome.
Aetiology
- Idiopathic
- Migraine
- Depression and anxiety
- Pure sensory strokes
- Thalamus: ventral posterior nucleus which interconnects with the primary somatosensory cortex.
- Internal capsule: posterior quarter of the posterior limb where the sensory tracts without motor fibres are found.
- Parietal lobe
- Corona radiata
- Pons
Clinical Features
Symptoms can be positive and/or negative. Positive symptoms are the presence of paraesthesias or dysaesthesias such as pins and needles, pricking, tightening, or burning. Negative symptoms are anaesthesia or hypoaesthesia.
Imaging
The standard modality is MRI brain which should include diffusion weighted images. An attenuation of apparent diffusion coefficent is consistent with ischaemic stroke.
Stroke was the cause for 3% in one study,[1], and 22% in another study.[2] In the later study, symptom onset of under 24 hours was the strongest predictor of ischaemic stroke (OR 31.4). A history of smoking (OR 7.3) and to a lesser extent older age (OR 1.14) was also more common in those with ischaemic stroke.
References
- ↑ Toth. Hemisensory syndrome is associated with a low diagnostic yield and a nearly uniform benign prognosis. Journal of neurology, neurosurgery, and psychiatry 2003. 74:1113-6. PMID: 12876246. DOI. Full Text.
- ↑ Koh et al.. Hemisensory syndrome: Hyperacute symptom onset and age differentiates ischemic stroke from other aetiologies. BMC neurology 2021. 21:179. PMID: 33906637. DOI. Full Text.
