ArticleTrials2022
Effect of early stellate ganglion block in cerebral vasospasm after aneurysmal subarachnoid hemorrhage (BLOCK-CVS): study protocol for a randomized controlled trial.
Article in Trials, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 10 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Effect of Early Stellate Ganglion Block for Cerebral Vasospasm After Aneurysmal Subarachnoid Hemorrhage: a Randomized Controlled Trial (BLOCK-CVS)
Effect of Superior Cervical Sympathetic Block Versus Stellate Ganglion Block to Treat Cerebral Vasospasm in Patients With Refractory Post-traumatic Subarachnoid Hemorrhage.
Who cites it
10 citing papers in PubMed, 15 citations in OpenAlex.
- Bilateral Stellate Ganglion Block After Ventricular Arrhythmia May Hide Clinical Signs of the Cushing Triad: A Case Study and Review of the Literature.Case reports in critical care · 2026Article
- Article
- Beyond the bleed: complications after aneurysmal subarachnoid hemorrhage. Pathophysiology, clinical implications, and management strategies: a review.Critical care (London, England) · 2025Review
- The versatile use of single-shot and continuous stellate ganglion blockade in the treatment of electrical storm: A case report.HeartRhythm case reports · 2025Article
- Three-Month Durability of Bilateral Two-Level Stellate Ganglion Blocks for Traumatic Brain Injury: A Retrospective Analysis.Biomedicines · 2025Article
- Three Pillars of Recovery After Aneurysmal Subarachnoid Hemorrhage: A Narrative Review.Translational stroke research · 2025Review
- Sympathetic nerve block as an add-on therapy for intervention and prevention of cerebral vasospasm after subarachnoid hemorrhage.Frontiers in neurology · 2025Review
- Stellate ganglion block: what else is necessary to include in the treatment of subarachnoid hemorrhage patients?Chinese neurosurgical journal · 2024Article
- Contemporary management of aneurysmal subarachnoid haemorrhage. An update for the intensivist.Intensive care medicine · 2024Review
- Stellate Ganglion Block and Intraarterial Spasmolysis in Patients with Cerebral Vasospasm: A Retrospective Cohort Study.Neurocritical care · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
introductionStellate ganglion block has been reported to expand cerebral vessels and alleviate vasospasm after aneurysmal subarachnoid hemorrhage. However, the causal relationship between early stellate ganglion block and cerebral vasospasm prevention has not yet been established. The purpose of this study was to explore the effectiveness and safety of early stellate ganglion block as a preventive treatment for cerebral vasospasm and delayed cerebral ischemia. METHODS/
designThis is a single-center, prospective, randomized, controlled, blinded endpoint assessment superiority trial. A total of 228 patients will be randomized within 48 h of aneurysmal subarachnoid hemorrhage onset in a 1:1 ratio into two groups, one group receiving an additional e-SGB and the other group receiving only a camouflaging action before anesthesia induction in the operating room. The primary outcome is the incidence of symptomatic vasospasm within 14 days after aSAH. Further safety and efficacy parameters include the incidence of radiographic vasospasm, new cerebral infarction, postoperative delirium, and complications up to 90 days after surgery; postoperative cerebral hemodynamics; Mini-Mental State Examination score; modified Rankin scale score; and all-cause mortality up to 90 days after surgery. DISCUSSION: This is a randomized controlled trial to explore the effectiveness and safety of early stellate ganglion block as a preventive treatment to reduce cerebral vasospasm in patients with aneurysmal subarachnoid hemorrhage. If the results are positive, it may provide a new direction for the prevention and treatment of cerebral vasospasm and delayed cerebral ischemia.
trial registrationThe study was registered on Clincaltrials.gov on December 13, 2020 (NCT04691271).
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.