Ischemic Stroke Impairment by Localization

Ischemic Stroke: Impairment by Localization
4, blood flow (ischemia) in the ACA
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Contralateral weakness and sensory loss in the LE
Authors: Andrea Kuczynski Reviewers: Sina Marzoughi Usama Malik Andrew M Demchuk* * MD at time of publication
4, blood (ischemia) M1-MCA M2-MCA 4, blood (ischemia) 4, blood (ischemia) 4, blood (ischemia) flow in the MCA flow in the PCA flow in the VBA flow in the BA deficits and neglect visual field deficits, Definitions: Agnosia: inability to process sensory information Agraphia: inability to communicate by writing Alexia: reading difficulty Aphasia: language impairment Apraxia: motor planning deficits Ataxia: abnormality L hemisphere damage -* Aphasia Visual perceptual hemisphere damage R -* (L sided agnosia) Contralateral hemiparesis and sensory deficits, aphasia, agnosia, apraxia, agraphia face gait No homonymous hemianopsia Broca’s aphasia: inability to produce language Spares the LE, affects the UE and -* Expressive Broca’s (motor) aphasia Diplopia: double vision Dysarthria: slurred/slowed speech Foville’s syndrome: ipsilateral cerebellar ataxia, Horner’s syndrome, paresis of conjugate gaze and contralateral hemiparesis, facial palsy, pain, and thermal hypoesthesia Hemianopsia: visual field loss Hypoalgesia: less pain sensitivity Millard-Gubler syndrome: lesion of the pons Wernicke’s aphasia: fluent speech, comprehension affected Wallenburg syndrome: sensory deficits in the contralateral limb, ipsilateral face Abbreviations: ACA: anterior cerebral artery BA: basilar artery 1: left LE: lower extremity LMN: lower motor neuron MCA: middle cerebral artery PCA: posterior cerebral artery R: right UE: upper extremity VBA: vertebral basilar artery Contralateral homonymous hemianopsia Receptive Wernicke’s (sensory) aphasia Sensory loss, memory loss, contralateral homonymous hemianopsia, alexia Cranial nerve disorders: dysarthria (IX, X), diplopia, facial numbness or paresthesia (VII), Foville’s syndrome Motor deficits: Millard-Gubler syndrome, Raymond’s syndrome, Wallenburg syndrome, ataxia Unilateral or bilateral sensory loss position and vibration sense) Cranial nerve disorders: dysconjugate gaze (III, IV, VI), ipsilateral face hypoalgesia (V), unilateral LMN face paralysis (VII), vertigo, dysarthria (IX, X) Motor deficits: contralateral hemiparesis, quadriplegia Contralateral limb hypoalgesia