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Brief Title: Stellate Ganglion Block and Cerebral Vasospasm
Official Title: Effect of Early Stellate Ganglion Block for Cerebral Vasospasm After Aneurysmal Subarachnoid Hemorrhage: a Randomized Controlled Trial (BLOCK-CVS)
Study ID: NCT04691271
Brief Summary: At present, cerebral vasospasm (cVS) is the main cause of delayed cerebral infarction (DCI), which leads to high disability and mortality rate after aneurysmal subarachnoid hemorrhage. As a consequence, the key of reducing DCI is to prevent cVS. But unfortunately, despite years of efforts, the prevention and treatment of cVS is still a major clinical dilemma and various ways of treatment are still being explored. Recent studies have shown that stellate ganglion block (SGB) can dilate cerebral vessels and alleviate the impact of existing cVS. However, there is no study to evaluate the effect of early application of SGB on the improvement and prevention of cVS after aSAH.
Detailed Description: Cerebral vasospasm refers to the extensive segmental or diffuse contraction of cerebral vasculature after aSAH, and cerebral blood flow is significantly reduced, which can lead to delayed cerebral ischemia (DCI) or delayed ischemic neurological dysfunction (DIND). Past studies have shown that if cerebral vasospasm occurs in patients with aSAH, the proportion of ischemic brain injury can be as high as 20%-30%.Obviously, prevention and treatment of CVS are the key to reducing the disability and mortality of aSAH.
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: No
Beijing Tiantan Hospital, Beijing, Beijing, China
Name: Ruquan Han, M.D., Ph.D
Affiliation: Beijing Tiantan Hospital
Role: PRINCIPAL_INVESTIGATOR