Key result
Patients with right-hemisphere stroke involving the insular cortex exhibited significantly higher sympathetic activity and cardiovascular dysfunction compared to non-insular infarction (p < 0.05).
Why the study?
Does ischemic stroke involving the insular cortex increase cardio-autonomic dysfunction compared to non-insular infarction?
Population
Patients with ischemic middle cerebral artery (MCA) stroke
Comparison
Ischemic insular cortex infarction vs Non-insular cortex infarction
Design
Cohort
Follow-up
5 days
Authors
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Right insular stroke was associated with excess sympathetic activity; supports hemispheric lateralization but remains hypothesis-generating for monitoring.
Does ischemic stroke involving the insular cortex increase cardio-autonomic dysfunction compared to non-insular infarction?
Right-hemisphere ischemic stroke involving the insular cortex is associated with excessive pathological activation of the sympathetic nervous system, demonstrating hemispheric lateralization of autonomic control.
Meyer et al. (2004) studied this question. Patients with right-hemisphere stroke involving the insular cortex exhibited significantly higher sympathetic activity and cardiovascular dysfunction compared to non-insular infarction (p < 0.05).
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