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Ocular Circulation and Chronic Ocular Ischemic Syndrome before and after Carotid Artery Revascularization Surgery
Joint Authors
Kawaguchi, Shoichiro
Uchiyama, Yoshitomo
Iida, Jun-ichi
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-20
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Background.
We evaluated the effect of carotid revascularization surgery on ocular circulation and chronic ocular ischemic syndrome (OIS).
Methods.
We examined ninety patients with carotid artery stenosis (more than 50% stenosis) at its origin treated with carotid endarterectomy (N=56) or carotid artery stenting (N=34).
Twenty-five patients (28%) complained of chronic OIS.
Ocular circulation was examined before and after revascularization surgery using ophthalmic artery (OphAr) and central retinal artery (CRA) color Doppler flow imaging.
Results.
(1) Ocular circulation: preoperatively, the average OphAr peak systolic flow velocity (Vs) was 0.05 m/sec, and the average CRA Vs was 0.07 m/sec.
At 1 week after surgery, the average OphAr Vs significantly increased to 0.32 (P<0.05), and the average CRA Vs significantly increased to 0.11 m/sec (P<0.05).
These significant improvements were sustained throughout the three months of the followup.
(2) OIS: during the follow-up period (mean: 3.6 years), 15 patients (60%) showed visual acuity improvement, and no patients complained of amaurosis fugax or worsening of the chronic OIS.
Conclusion.
Carotid revascularization surgery was effective in improving the ocular circulation, and it was also useful for the chronic OIS due to the carotid artery stenosis.
American Psychological Association (APA)
Kawaguchi, Shoichiro& Iida, Jun-ichi& Uchiyama, Yoshitomo. 2012. Ocular Circulation and Chronic Ocular Ischemic Syndrome before and after Carotid Artery Revascularization Surgery. Journal of Ophthalmology،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-464915
Modern Language Association (MLA)
Kawaguchi, Shoichiro…[et al.]. Ocular Circulation and Chronic Ocular Ischemic Syndrome before and after Carotid Artery Revascularization Surgery. Journal of Ophthalmology No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-464915
American Medical Association (AMA)
Kawaguchi, Shoichiro& Iida, Jun-ichi& Uchiyama, Yoshitomo. Ocular Circulation and Chronic Ocular Ischemic Syndrome before and after Carotid Artery Revascularization Surgery. Journal of Ophthalmology. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-464915
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-464915