Common Ischemic Stroke Syndromes Flashcards
Left cerebral hemisphere
Right hemiparesis: often arm, hand, face > leg, right hemisensory loss, aphasia, in large lesions: conjugate deviation of eyes to the left; right hemianopia or hemi-inattention, when ICA occlusive disease: transient left monocular visual loss
Right cerebral hemisphere
left hemiparesis: often arm, hand and face > leg, left hemisensory loss, poor drawing and copying, neglect of the left visual field, in large lesions: conjugate deviation of the eyes to the right, left hemianopia, ICA occlusive disease: transient right mononuclear visual loss
Lateral medullary stroke (Wallenberg syndrome)
Usually due to intracranial VA occlusion; ipsilateral facial pain, reduced pain and temperature sensation on the ipsilateral face or both, loss of pain and temp in the contralateral limbs and body, Ipsilateral Horner’s, Nystagmus, Incoordination of the ipsilateral arm, leaning and veering while sitting or walking, with gait ataxia, in deep lesions: dysphagia and hoarseness
Bilateral pontine base/medial tegmentum stroke
Usually due to basilar artery occlusion or pontine hemorrhage; quadriparesis, unilateral or bilateral conjugate gaze paresis, sometimes INO or VI nerve palsy, when medial tegmentum: coma
Cerebellar infarction
Usually due to PICA, SCA, cerebellar hemorrhage; gait ataxia, dysarthria, ipsilateral arm dysmetria
Left PCA territory stroke
right homonymous hemianopia, amnesia, alexia without agraphia when the splenium of the corpus callosum is involved
Right PCA territory stroke
left homonymous hemianopia, left-sided visual neglect
Pure lacunar motor stroke
weakness of contralateral arm, face and leg without sensory, visual or cognitive or behavioral signs
Pure lacunar sensory stroke
paresthesiae of the contralateral body, limbs, and face without motor, visual or cognitive abnormalities
Pure lacunar dysarthria-clumsy hand syndrome
slurred speech and clumsiness of the contralateral hand
Ataxic hemiparesis
weakness and ataxia of the contralateral limbs, often greater in the leg and foot than in the arm and hand