SynthesisNeuroradiology2019
Radiological scales predicting delayed cerebral ischemia in subarachnoid hemorrhage: systematic review and meta-analysis.
Synthesis in Neuroradiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 4 of them syntheses that pooled it.
What it found
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
47 citing papers in PubMed, 4 syntheses or guidelines pooled it, 80 citations in OpenAlex.
- Differential DNA methylation associated with delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage: a systematic review.Neurosurgical review · 2024Pooled it
- Genetic variation in NFE2L2 is associated with outcome following aneurysmal subarachnoid haemorrhage.European journal of neurology · 2023Pooled it
- Predictive factors for pre-intervention rebleeding in aneurysmal subarachnoid haemorrhage: a systematic review and meta-analysis.Neurosurgical review · 2022Pooled it
- Prediction and Risk Assessment Models for Subarachnoid Hemorrhage: A Systematic Review on Case Studies.BioMed research international · 2022Pooled it
- Quantification of blood and CSF volume to predict outcome after aneurysmal subarachnoid hemorrhage.Neurosurgical review · 2024Trial
- Everybody Complains about Vasospasm but Nobody Does Anything about It.Neurocritical care · 2026Article
- Pre-existing intracranial arterial stenosis independently predicts delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage.Neuroradiology · 2026Article
- Inter-Rater Reliability of Subarachnoid Hemorrhage Radiological Grading Scales: A Systematic Review and Meta-Analysis.Journal of clinical medicine · 2026Review
- Development and internal validation of a macrophage migration inhibitory factor-based risk assessment model for delayed cerebral ischemia in patients with aneurysmal subarachnoid hemorrhage.Frontiers in surgery · 2026Article
- Imaging Scores in Subarachnoid Hemorrhage: Performance on Prediction of Functional Outcome, Mortality, and Complications.Brain sciences · 2025Article
- Prospective Trial of Cerebrospinal Fluid Filtration After Aneurysmal Subarachnoid Hemorrhage via Lumbar Catheter Extension (PILLAR-XT).Neurocritical care · 2025Article
- Claudin proteins and hemorrhage severity in aneurysmal subarachnoid hemorrhage: Correlation with modified Fisher score but not functional outcome.Neurosurgical review · 2025Article
- Beyond the bleed: complications after aneurysmal subarachnoid hemorrhage. Pathophysiology, clinical implications, and management strategies: a review.Critical care (London, England) · 2025Review
- Sex Differences in Incidence and Risk Factors for Delayed Cerebral Ischemia Following Aneurysmal Subarachnoid Hemorrhage: A Propensity Score-Matched Analysis.Journal of the American Heart Association · 2025Article
- Comparative Analysis of Single-Stage vs. Multiple-Stage Interventions in the Management of Subarachnoid Hemorrhage in Patients with Multiple Intracranial Aneurysms.Journal of clinical medicine · 2025Article
- Delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage: a narrative review.Arquivos de neuro-psiquiatria · 2025Review
- Contribution of an Automatic Algorithm for Quantifying the Volume of Aneurysmal Subarachnoid Hemorrhage to the Evaluation of the Risk of Occurrence of Delayed Cerebral Ischemia: A Cohort Study.Neurocritical care · 2025Observational
- Use of thrombocyte count dynamics after aneurysmal subarachnoid hemorrhage to predict cerebral vasospasm and delayed cerebral ischemia: a retrospective monocentric cohort study.Scientific reports · 2025Article
- All Three Supersystems-Nervous, Vascular, and Immune-Contribute to the Cortical Infarcts After Subarachnoid Hemorrhage.Translational stroke research · 2025Review
- Comparison of scales for the evaluation of aneurysmal subarachnoid haemorrhage: a retrospective cohort study.European radiology · 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
7 authors at 3 institutions in 1 country.
Funding
Abstract
purposeDelayed cerebral ischemia (DCI) is a severe complication of aneurysmal subarachnoid hemorrhage (aSAH). The extent of subarachnoid blood is a strong predictor of DCI and is frequently estimated with the Fisher scale, modified Fisher scale, or Hijdra sum score. It is unclear which scale has the strongest association with clinical DCI. To evaluate this, we performed a systematic review of the literature.
methodsWe performed a MEDLINE and EMBASE search from 1980 to 20th of June 2017. Radiological grade and occurrence of clinical DCI were extracted along with odds ratios (ORs) for DCI. When possible, pooled ORs with 95% confidence intervals were calculated per grade increase on the radiological scale.
resultsFifty-three studies were included. The Fisher scale was significantly associated with DCI in 62% of the studies compared to 88-100% for the other scales. In studies using the Fisher scale, Fisher 3 had the strongest association with DCI (pooled OR 3.21 (1.87-5.49)). In studies using the modified Fisher score, DCI occurred most frequently (42%) in modified Fisher 4. No pooled OR could be calculated for the other scales.
conclusionThe Fisher scale, modified Fisher scale, and Hijdra sum score are all associated with clinical DCI. The risk of DCI, however, does not increase with increasing Fisher grade as opposed to the modified Fisher scale. Furthermore, the modified Fisher scale was more commonly significantly associated with DCI than the Fisher scale, which may advocate using the modified Fisher in future SAH-related studies.
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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.