What is the most common lacunar stroke syndrome?
There are over 20 lacunar syndromes that have been described, but the most common ones are pure motor hemiparesis, pure sensory stroke, ataxic hemiparesis, sensorimotor stroke, and dysarthria-clumsy hand syndrome.
What is a lacunar stroke syndrome?
Lacunar stroke is a type of ischemic stroke that occurs when blood flow to one of the small arteries deep within the brain becomes blocked. According to the National Institutes of Health (NIH) , lacunar strokes represent about one-fifth of all strokes.
Which part of internal capsule is affected in pure motor lacunar stroke?
Pure motor stroke/hemiparesis This is the most common (33-50%) lacunar syndrome and usually occurs with infarction of the posterior limb of the internal capsule, which carries the descending corticospinal and corticobulbar tracts, or the basis pontis.
Can a lacunar infarct cause vertigo?
8–10 Duration of symptoms can be from minutes to hours (generally <24 hours), although some may be recurrent or continuous for a few days. Dizziness/vertigo is also a common cerebrovascular symptom.
How do you treat lacunar infarct?
If you have had a lacunar stroke, your doctor may recommend a daily aspirin or other blood-thinning medication, such as ticlopidine (Ticlid) or clopidogrel (Plavix). These medicines may reduce your risk, but their benefit has been more obvious for stroke types other than lacunar strokes.
Which is the best description of lacunar stroke syndrome?
Lacunar stroke syndrome (LACS) is a description of the clinical syndrome that results from a lacunar infarct . Each of the five classical lacunar syndromes has a relatively distinct symptom complex. Symptoms may occur suddenly, progressively, or in a fluctuating manner (e.g.
How big does a lacunar infarction need to be?
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. These penetrating arteries arise at sharp angles from major vessels and are thus, anatomically prone to constriction and occlusion.
What are the symptoms of pure sensory stroke?
Pure sensory stroke. This syndrome is due to an infarct of the ventral posterolateral (VPL) nucleus of the thalamus. It is characterised by contralateral numbness of the face, arm and leg.
Can a stroke cause contralateral leg weakness and sensory loss?
•MCA stroke can cause contralateral hemiparesis, sensory loss, hemianopia, and either aphasia or neglect •ACA stroke can cause contralateral leg weakness and executive dysfunction •PCA stroke can cause hemianopia, pure sensory infarct (thalamus), memory impairment, decreased level of consciousness
