Bilateral retinal artery occlusions with carotid artery occlusions-ocular and cerebral hemodynamic changes.
Carotid occlusion
Cherry red spot
Emboli
Retinal artery occlusion
Journal
American journal of ophthalmology case reports
ISSN: 2451-9936
Titre abrégé: Am J Ophthalmol Case Rep
Pays: United States
ID NLM: 101679941
Informations de publication
Date de publication:
Dec 2020
Dec 2020
Historique:
received:
06
07
2020
revised:
30
09
2020
accepted:
04
10
2020
entrez:
29
10
2020
pubmed:
30
10
2020
medline:
30
10
2020
Statut:
epublish
Résumé
To introduce a case of bilateral retinal artery occlusions with carotid occlusions to achieve a fuller understanding of hemodynamic flow changes and the origin of emboli. A 58-year-old male presented with binocular vision loss. Fundus examination revealed bilateral retinal whitening with multiple emboli. Cherry red spot was surrounded and shaped by white edematous ischemic retina. FAG showed retinal refilling but not to the macula and choroidal background. Carotid arteriography and color Doppler images demonstrated bilateral carotid occlusions. CT angiography showed compensatory flows perfused from vertebral arteries for the brain. Orbital color Doppler images revealed bilateral reversed ophthalmic flows indicating another compensatory flow arising from external carotid/ophthalmic collaterals to both eyes. Reversed ophthalmic flow indicates the presence of external carotid/ophthalmic collaterals as the source of ocular blood supply and the origin of emboli. In this case, all the embolic, hemodynamic, and serotonin mechanisms may be responsible for the pathogenesis. RAO with multiple emboli is an important sign warning critical flow changes of carotid occlusions.
Identifiants
pubmed: 33117913
doi: 10.1016/j.ajoc.2020.100959
pii: S2451-9936(20)30274-7
pmc: PMC7582047
doi:
Types de publication
Case Reports
Langues
eng
Pagination
100959Informations de copyright
© 2020 The Authors.
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