ArticleJournal of cerebrovascular and endovascular neurosurgery2023
The impact of collateral status on cerebral vasospasm and delayed cerebral ischemia in subarachnoid hemorrhage.
Article in Journal of cerebrovascular and endovascular neurosurgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 7 citations in OpenAlex.
- Surgical management of refractory ischemic-side aneurysms in chronic internal carotid artery occlusion: insights from cases unfit for endovascular treatment.BMC surgery · 2025Article
- A Comparison of Three Perfusion Algorithms in Patients at Risk of Delayed Cerebral Ischemia After Subarachnoid Hemorrhage.Diagnostics (Basel, Switzerland) · 2025Article
- Perimesencephalic Subarachnoid Hemorrhage Bleeding Patterns Are Not Always Benign: Prognostic Impact of an Aneurysmal Pathology.Biomedicines · 2025Article
- Delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage: a narrative review.Arquivos de neuro-psiquiatria · 2025Review
- Plasma hydrogen sulfide as a promising predictor of collateral cerebral circulation in acute ischemic stroke.American journal of translational research · 2025Article
- Posterior communicating artery vasospasm impairs cerebral pulsatility in an experimental subarachnoid hemorrhage model.Frontiers in neurology · 2025Article
- Numerical Modeling of Flow in the Cerebral Vasculature: Understanding Changes in Collateral Flow Directions in the Circle of Willis for a Cohort of Vasospasm Patients Through Image-Based Computational Fluid Dynamics.Annals of biomedical engineering · 2024Article
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Authors and funding
6 authors at 2 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
objectiveCerebral collateral circulation may affect subarachnoid hemorrhage (SAH) induced cerebral vasospasm and delayed cerebral ischemia. In this study our aim was to investigate the relationship between collateral status, vasospasm and delayed cerebral ischemia (DCI) in both aneurysmal and nonaneurysmal SAH.
methodsPatients diagnosed as SAH with and without aneurysm were included and their data investigated retrospectively. After the patients diagnosed as SAH according to cerebral computed tomography (CT)/magnetic resonance imaging (MRI), they underwent cerebral angiography to check for cerebral aneurysm. The diagnosis of DCI was made according to the neurological examination and control CT/MRI. All the patients had their control cerebral angiography on days 7 to 10 in order to assess vasospasm and also collateral circulation. The American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology (ASITN/SIR) Collateral Flow Grading System was modified to measure collateral circulation.
resultsA total of 59 patients data were analyzed. Patients with aneurysmal SAH had higher Fisher scores and DCI was more common. Although there was no statistically significant difference between the patients with and without DCI in terms of demographics and mortality, patients with DCI had worse collateral circulation and more severe vasospasm. These patients had higher Fisher scores and more cerebral aneurysm overall.
conclusionsAccording to our data, patients with higher Fisher scores, more severe vasospasm, and poor cerebral collateral circulation may experience DCI more frequently. Additionally aneurysmal SAH had higher Fisher scores and DCI was seen more common. To improve the clinical results for SAH patients, we believe that physicians should be aware of the DCI risk factors.
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