

134| The Neuropsychology of Stroke – A Conversation With Dr. Ronald Lazar
22 snips Jan 1, 2024
Dr. Ronald Lazar, a neuropsychology specialist and stroke expert, discusses the neuropsychology of stroke. Topics covered include stroke terminology, neuroimaging techniques, risk factors, prognosis, mental health factors, treatment strategies, and the role of neuropsychology in healthcare integration.
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Stroke's High Healthcare Burden
- Stroke has the highest global cost burden among brain diseases, with roughly 800,000 new strokes annually in the U.S.
- Costs arise from acute treatment and disabling long-term consequences like hemiparesis and aphasia.
Ischemic vs Hemorrhagic Stroke Effects
- Ischemic strokes cause permanent cell death due to infarction, while hemorrhagic strokes cause reversible tissue compression.
- Hemorrhagic strokes have better long-term prognosis if medically managed, but acute risk due to increased pressure is higher.
Understanding Ischemic Penumbra
- The ischemic penumbra surrounds the infarct core and is dysfunctional but salvageable tissue.
- Acute stroke treatment aims to re-perfuse this area to preserve function and reduce long-term damage.