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Revascularization of the anterior cerebral artery using a free superficial temporal artery graft: a case report
S Terasaka1, M Satoh, K Echizenya
1Division of Neurosurgery, Municipal Second Hospital of Otaru, Japan.
Insights
A superficial temporal artery (STA) graft successfully treated stenosis in the anterior cerebral artery (ACA) territory. This bypass surgery effectively restored blood flow and resolved transient ischemic attacks.
Area of Science:
- Neurosurgery
- Vascular Surgery
- Cerebrovascular Disease
Background:
- Occlusive cerebrovascular diseases are often treated with bypass procedures.
- Most bypasses target the middle cerebral artery territory, with fewer addressing the anterior cerebral artery (ACA) territory.
Observation:
- A patient presented with transient leg weakness due to severe stenosis at the right A2-A3 junction.
- Surgical intervention involved an intracranial free superficial temporal artery (STA) graft between the A2 and A3 segments.
Findings:
- The STA graft successfully reconstructed the stenotic lesion.
- Post-surgery, transient ischemic attacks resolved immediately.
- Cerebral angiography confirmed good blood flow through the graft from A2 to A3.
Implications:
- Free STA grafting is a viable option for reconstructing stenotic lesions.
- This technique is particularly beneficial for the ACA territory.
- Effective treatment for ACA stenosis can prevent further neurological deficits.
Background:
Various bypass procedures have been used to treat occlusive cerebrovascular diseases. Most procedures were performed to prevent further ischemia in the territory of the middle cerebral artery, while only a few of the papers discuss the anterior cerebral artery (ACA) territory.
Method And Results:
A patient who initially presented with several episodes of transient monoparesis in the left leg was found to have severe stenosis of the right A2-A3 junction. A free superficial temporal artery (STA) graft was anastomosed between the right A2 and A3 portion intracranially. Transient ischemic attacks immediately disappeared after surgery and subsequent cerebral angiography revealed good anterograde filling from the A2 to A3 portion via the free STA graft.
Conclusion:
Revascularization using a free STA graft is useful for reconstruction of a local stenotic lesion, especially in the ACA territory.