Dexmedetomidine Clinical Trial
Official title:
Role of Intraoperative Dexmedetomidine Infusion in Endovascular Intervention for Aneurysmal Subarachnoid Hemorrhage: A Randomized Controlled Trial
The aim of this study is to evaluate the role of intraoperative dexmedetomidine infusion in endovascular intervention for aneurysmal subarachnoid hemorrhage.
Aneurysmal subarachnoid hemorrhage is a sudden, life-threatening emergency caused by bleeding in the subarachnoid space between the brain and skull. Cerebral vasospasm (VSP) is the leading risk factor of neurological deterioration (i.e., delayed cerebral ischemia [DCI] and cerebral infarction) after aneurysmal subarachnoid hemorrhage (SAH) and a cause of morbidity and mortality. Dexmedetomidine (DEX) is a highly selective α-2 adrenergic receptor agonist. The α -2 receptor agonists have a long track record of use for sedation and analgesia. It has been shown that α -2 agonists are neuroprotective in craniocerebral and subarachnoid injuries. Dexmedetomidine has a significant effect on the central nervous system and decreases the blood flow in the brain and the requirement or needs for cerebral oxygen. It also modifies memory and enhances cognitive ability effects like sedation, analgesic, and anxiolytics. Dexmedetomidine is shown to decrease catecholamine in the brain and improves the perfusion ability in the penumbra. The glutamate level is significantly reduced by Dexmedetomidine (DEX), and so injuries at the cellular level is reduced. ;
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