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Updated: Aug 11, 2026
Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Cerebral arterial revascularization: the value of repeated angiography in selection of patients for operation
Insights
In cases of cerebrovascular disease, natural collateral circulation can spontaneously improve, negating the need for surgical intervention. Repeated angiography is crucial for assessing these natural improvements before deciding on surgical revascularization.
Area of Science:
- Neurology
- Vascular Surgery
- Diagnostic Imaging
Background:
- Patients with occlusive cerebrovascular disease often undergo evaluation for extracranial-intracranial arterial anastomosis.
- Surgical intervention aims to restore blood flow to the brain in cases of stenosis or occlusion.
Observation:
- Three patients with cerebrovascular disease were monitored using serial cerebral angiography.
- Initial evaluations showed significant vascular stenosis or occlusion.
Findings:
- Follow-up angiography revealed spontaneous resolution of stenosis/occlusion in all three patients.
- Extensive collateral circulation developed naturally, bypassing the initial blockages.
Implications:
- Surgical revascularization may not be necessary or beneficial when natural collateralization occurs.
- Repeated angiography is vital for accurate clinical decision-making regarding surgical intervention.
- This highlights the dynamic nature of cerebrovascular disease and the importance of non-invasive monitoring.
Abstract:
Three patients with occlusive cerebrovascular disease were evaluated for possible extracranial-intracranial arterial anastomosis. Cerebral angiography repeated at a later date revealed disappearance of the initial vascular stenosis or occlusion and development of extensive collateral circulation. It was concluded in these cases that surgical revascularization would not improve upon natural revascularization. Repeated angiography provides information of value to the physician who must make a decision about such surgical treatment.
