Study examines risk factors for ischemic stroke after acute retinal arterial ischemia
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Key takeaways:
- Patients with acute retinal arterial ischemia were at risk for ischemic stroke.
- Ipsilateral carotid artery stenosis of 70% or more or occlusion increased stroke risk.
Patients with ipsilateral carotid artery stenosis of 70% or more or occlusion after the onset of acute retinal arterial ischemia were at high risk for ischemic stroke, according to a retrospective cohort study.
“Acute retinal arterial ischemia, including transient monocular vision loss, branch retinal artery occlusion, central retinal artery occlusion and ophthalmic artery occlusion, is an ophthalmic emergency,” Yuan Gao, MD, PhD, and colleagues wrote in a poster presented at the North American Neuro-Ophthalmology Society meeting. “It can lead to severe visual acuity and visual field loss in the affected eye.”
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Gao and colleagues evaluated the risk for ischemic stroke in 69 patients in a Chinese population within 2 years after the diagnosis of acute retinal arterial ischemia.
During the 2-year follow-up, ipsilateral carotid artery stenosis of 70% or more or occlusion was more common in patients with ischemic stroke than those without ischemic stroke (P = .002).
In addition, after Cox regression analysis, ipsilateral carotid artery stenosis of 70% or more or occlusion was associated with high risk for ischemic stroke after acute retinal arterial ischemia (P = .005).
“Clinical management of [acute retinal arterial ischemia] should focus on vascular risk factors control and secondary prevention for stroke,” Gao and colleagues wrote.
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Gao Y, et al. Risk and risk factor of ischemic stroke after acute retinal arterial ischemia. Presented at: North American Neuro-Ophthalmology Society meeting; March 11-16, 2023; Orlando.
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