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Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
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Aneurysmal Subarachnoid Hemorrhage.
1Department of Neuroanesthesiology, Baystate Medical Center, Tufts University School of Medicine, Springfield, MA.
Journal of Neurosurgical Anesthesiology
|October 2, 2014
Summary
Aneurysmal subarachnoid hemorrhage (SAH) is a serious condition. While endovascular coiling shows promise, its benefits for complex cases remain unclear, and hypothermia
Area of Science:
- Neurology
- Neurosurgery
- Critical Care Medicine
Background:
- Aneurysmal subarachnoid hemorrhage (SAH) presents a significant global health challenge, associated with high mortality and long-term disability.
- Prognosis is influenced by initial bleed volume, rebleeding, and delayed cerebral ischemia (DCI).
- Cardiac and pulmonary complications can signify SAH severity.
Purpose of the Study:
- To review current understanding and treatment strategies for aneurysmal subarachnoid hemorrhage.
- To evaluate the efficacy of different interventions, including endovascular coiling, surgical clipping, and hypothermia.
- To identify factors influencing patient outcomes and management of DCI.
Main Methods:
- Review of existing literature, including major clinical trials like ISAT and IHAST II.
- Analysis of retrospective studies on adenosine for induced hypotension.
- Discussion of current management protocols for DCI, including nimodipine, euvolemia, and induced hypertension.
Main Results:
- Endovascular coiling demonstrated favorable outcomes compared to surgical clipping in the ISAT trial, but results may not generalize to all aneurysm types or patient grades.
- The Intraoperative Hypothermia for Aneurysms Surgery Trial (IHAST II) did not prove hypothermia's neuroprotective benefits, potentially due to methodological limitations.
- Adenosine showed potential for transient induced hypotension without increased cardiac or neurological risks.
- The efficacy of pharmacological neuroprotection and neuromonitoring remains unproven for aneurysm clipping.
- Hypernatremia, though less frequent than hyponatremia, is linked to poor neurological outcomes post-SAH.
Conclusions:
- Treatment decisions for aneurysmal SAH require careful consideration of aneurysm characteristics and patient condition.
- Further research is needed to clarify the role of hypothermia and explore novel neuroprotective strategies.
- Effective management of DCI, alongside supportive care, is crucial for improving patient outcomes after SAH.
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