ArticleStroke (Hoboken, N.J.)2022
Outcome of Aneurysmal Subarachnoid Hemorrhage in a Population-Based Cohort: Retrospective Registry Study.
Article in Stroke (Hoboken, N.J.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 2 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
5 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Regulatory T Cell- and Natural Killer Cell-Mediated Inflammation, Cerebral Vasospasm, and Delayed Cerebral Ischemia in Aneurysmal Subarachnoid Hemorrhage-A Systematic Review and Meta-Analysis Approach.International journal of molecular sciences · 2025Pooled it
- Endovascular Treatment and Peri-interventional Management of Ruptured Cerebrovascular Lesions During Pregnancy : Case Series and Case-based Systematic Review.Clinical neuroradiology · 2023Pooled it
- Endovascular management of subarachnoid hemorrhage due to vertebrobasilar artery dissection using emergency flow-diverter stent placement combined with pseudoaneurysm coiling.Surgical neurology international · 2026Article
- Prediction of persistent incomplete occlusion of intracranial aneurysms treated with woven EndoBridge device.Neurosurgical review · 2025Article
- Patch-Wise Deep Learning Method for Intracranial Stenosis and Aneurysm Detection-the Tromsø Study.Neuroinformatics · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Studies of aneurysmal subarachnoid hemorrhage report an association between higher patient volumes and better outcomes. In regions with dispersed settlement, this must be balanced against the advantages with shorter prehospital transport times and timely access. The aim of this study is to report outcome for unselected aneurysmal subarachnoid hemorrhage cases from a well-defined rural population treated in a low-volume neurosurgical center. Methods: This is a retrospective, population-based, observational cohort study from northern Norway (population 486 450). The University Hospital of North Norway provides the only neurosurgical service. We retrieved data for all aneurysmal subarachnoid hemorrhage cases (n=332) admitted during 2007 through 2019 from an institution-specific register. The outcome measures were mortality rates and functional status assessed with the modified Rankin scale. Results: The mean annual number of cases was 26 (range, 16-38) and the mean crude incidence rate 5.4 per 100 000 person-years. Two hundred seventy-nine of 332 (84%) cases underwent aneurysm repair, 158 (47.5%) with endovascular techniques and 121 (36.4%) with microsurgical clipping, while 53 (15.9%) did not. The overall mortality rate was 16.0% at discharge and 23.8% at 12 months. The proportion with a favorable outcome (modified Rankin scale scores 0-2) was 36.1% at discharge and 51.5% at 12 months. In subgroup analysis of cases who underwent aneurysm repair, the mortality rate was 4.7% at discharge and 11.8% at 12 months, and the proportion with a favorable outcome 42.3% at discharge and 59.9% at 12 months. Conclusions: We report satisfactory outcomes after treatment of aneurysmal subarachnoid hemorrhage in a low-volume neurosurgical department serving a rural population. This indicates a reasonable balance between timely access to treatment and hospital case volume.
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Registered trials
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