Journal of neurointerventional surgery · 2026
Carotid revascularization and circle of Willis in ocular ischemic syndrome: association with neovascular glaucoma and visual prognosis.
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Cheng Xue-Ru, Meng Zhao-Yang, Zhao Lu, Wang Yan-Ling, Wang Jia-Lin
Аннотация
BACKGROUND: Ocular ischemic syndrome (OIS) and subsequent neovascular glaucoma (NVG) lead to irreversible visual impairment. This study aimed to investigate the association of carotid artery revascularization and the collateral circulation types via the circle of Willis (CoW) with NVG and visual prognosis in patients with OIS.
METHODS: This retrospective cohort study included 22 patients with OIS, with a median follow-up of 12 months. The collateral circulation patterns via the CoW were classified into five types. The association of the carotid artery revascularization, collateral circulation types via the CoW, and morphological characteristics of the CoW with the presence of NVG and visual outcomes was assessed.
RESULTS: The median time interval from baseline to visual decline during follow-ups in patients with carotid artery revascularization was longer than that in patients without carotid artery revascularization (13 months vs 9.5 months, P=0.041). Lacking collateral inflow via the CoW to the hemisphere ipsilateral to OIS was associated with NVG (odds ratio (OR), 11.000; P=0.022). The diameters of the C6 and C7 segments of the internal carotid artery, the A1 segment of the anterior cerebral artery, and the ophthalmic artery in OIS eyes were smaller than those in the contralateral eyes.
CONCLUSION: Early carotid artery revascularization should be considered in patients with OIS, with or without NVG, as it may contribute to an improved visual prognosis. Patients without collateral inflow via the CoW to the hemisphere ipsilateral to OIS may have a higher risk of NVG.
METHODS: This retrospective cohort study included 22 patients with OIS, with a median follow-up of 12 months. The collateral circulation patterns via the CoW were classified into five types. The association of the carotid artery revascularization, collateral circulation types via the CoW, and morphological characteristics of the CoW with the presence of NVG and visual outcomes was assessed.
RESULTS: The median time interval from baseline to visual decline during follow-ups in patients with carotid artery revascularization was longer than that in patients without carotid artery revascularization (13 months vs 9.5 months, P=0.041). Lacking collateral inflow via the CoW to the hemisphere ipsilateral to OIS was associated with NVG (odds ratio (OR), 11.000; P=0.022). The diameters of the C6 and C7 segments of the internal carotid artery, the A1 segment of the anterior cerebral artery, and the ophthalmic artery in OIS eyes were smaller than those in the contralateral eyes.
CONCLUSION: Early carotid artery revascularization should be considered in patients with OIS, with or without NVG, as it may contribute to an improved visual prognosis. Patients without collateral inflow via the CoW to the hemisphere ipsilateral to OIS may have a higher risk of NVG.