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Ocular manifestations of internal carotid artery dissection
Jin-Xin Song1,2, Xue-Mei Lin3, Zhao-Qin Hao1
1Department of Ophthalmology, the First Hospital of Xi'an; Shaanxi Institute of Ophthalmology; First Affiliated Hospital of Northwestern University, Xi'an 710002, Shaanxi Province, China.
Insights
Internal carotid artery dissection (ICAD) can cause vision problems and Horner syndrome. Ocular symptoms may be the first sign of ICAD, even without classic symptoms.
Area of Science:
- Vascular Neurology
- Ophthalmology
Background:
- Internal carotid artery dissection (ICAD) involves arterial wall intima disruption, leading to intramural hematoma.
- This hematoma can compress the vessel's true lumen, causing stenosis or occlusion.
Purpose of the Study:
- To summarize the ocular manifestations associated with internal carotid artery dissection (ICAD).
- To categorize these ocular findings for better understanding and diagnosis.
Main Methods:
- Literature review and synthesis of case reports and studies on ICAD.
- Categorization of ocular manifestations into visual symptoms, oculosympathetic palsy, and ocular motor nerve palsy.
Main Results:
- ICAD can present with a range of ocular symptoms, not limited to the classic triad.
- Ocular manifestations can be the initial or sole presenting signs of ICAD.
- Key categories include visual disturbances, Horner syndrome, and cranial nerve palsies affecting eye movement.
Conclusions:
- Ocular manifestations are a significant aspect of internal carotid artery dissection (ICAD).
- Recognizing these varied ocular signs is crucial for timely ICAD diagnosis, especially when classic symptoms are absent.
Abstract:
Internal carotid artery dissection (ICAD) results from disruption of the intima of the arterial wall, and can lead to intrusion of blood into the arterial wall and form an intramural hematoma. The hematoma can compress the true lumen of the vessel, causing functional stenosis or occlusion. The classic triad signs of ICAD include pain in the ipsilateral neck, head and orbital regions; a (partial) Horner syndrome; and cerebral or retinal ischemia. However, not all ICAD patients present with this classic signs. In some cases, ocular manifestations are the initial (and sometimes the only) findings. We summarize the ocular manifestations associated with ICAD in 3 categories: visual symptoms, oculosympathetic palsy, and ocular motor nerve palsy.
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