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[Delayed neuronal dysfunction after recirculation of cerebral ischemia].
S Yamagata1, H Kikuchi, K Hashimoto
1Department of Neurosurgery, Kyoto University Medical School.
No Shinkei Geka. Neurological Surgery
|September 1, 1989
Summary
Delayed neuronal deterioration can occur after cerebral ischemia recovery. Evaluating neuronal function recovery requires at least 48 hours post-recirculation due to potential delayed dysfunction and increased intracranial pressure.
Area of Science:
- Neuroscience
- Cerebrovascular Medicine
- Pathophysiology
Context:
- Cerebral ischemia can lead to neuronal dysfunction.
- Assessing recovery of neuronal function post-ischemia is critical.
- Delayed deterioration of neuronal function is a recognized phenomenon.
Purpose:
- To investigate delayed neuronal deterioration after cerebral ischemia in cats.
- To evaluate the relationship between cerebral blood flow, intracranial pressure, and neuronal function recovery.
- To determine the optimal timeframe for assessing neuronal function recovery post-ischemia.
Summary:
- 25 cats underwent induced cerebral ischemia and subsequent recirculation.
- Neuronal function was monitored via direct cortical response (DCR) and EEG, alongside cerebral blood flow (CBF) and intracranial pressure (ICP).
- Delayed deterioration of neuronal function and increased ICP were observed in some cats up to 48 hours post-recirculation, indicating the need for extended observation periods.
Impact:
- Findings suggest that assessing neuronal function recovery from cerebral ischemia requires a minimum of 48 hours post-recirculation.
- Highlights the importance of investigating the pathogenesis of delayed neuronal dysfunction and increased ICP.
- Emphasizes the need for further research into the mechanisms underlying delayed neurological deficits after ischemic events.