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Updated: Jun 8, 2026
10:34
Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
Neuroprotection in subarachnoid hemorrhage
Daniel T Laskowitz1, Brad J Kolls
1Departments of Medicine Neurology, Duke University, Durham NC 27710, USA. danl@neuro.duke.edu
Stroke
|September 30, 2010
Summary
Delayed cerebral ischemia after subarachnoid hemorrhage is complex. New research suggests microvascular dysfunction and neuronal-glial interactions, not just vasospasm, contribute to poor outcomes, guiding future treatments.
Area of Science:
- Neurology
- Neurosurgery
- Critical Care Medicine
Background:
- Delayed cerebral ischemia (DCI) is a major complication following aneurysmal subarachnoid hemorrhage (aSAH).
- Traditional management focused on vasospasm, but outcomes remain poor.
- Current understanding suggests DCI involves more than just vasospasm.
Purpose of the Study:
- To review the evolving understanding of DCI pathophysiology after aSAH.
- To highlight the limitations of vasospasm as a sole surrogate marker in clinical trials.
- To explore novel therapeutic targets beyond vasospasm.
Main Methods:
- Review of existing literature on DCI mechanisms.
- Analysis of clinical trial data dissociating vasospasm and patient outcomes.
- Synthesis of recent findings on microvascular and neuro-glial contributions.
Main Results:
- Angiographic vasospasm does not consistently correlate with functional outcomes in DCI.
- Microvascular dysfunction plays a significant role in DCI development.
- Neuronal-glial interactions are implicated in the complex pathophysiology of DCI.
Conclusions:
- The pathophysiology of DCI is multifactorial, extending beyond proximal vessel vasospasm.
- Rethinking clinical trial design and therapeutic strategies is crucial for improving patient outcomes.
- Focusing on microvascular and neuro-glial mechanisms may lead to more effective treatments for DCI.
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