In:
Cerebrovascular Diseases, S. Karger AG, Vol. 22, No. 5-6 ( 2006), p. 402-408
Kurzfassung:
〈 i 〉 Background: 〈 /i 〉 The authors evaluated the effect of carotid artery stenting (CAS) on ocular circulation and chronic ocular ischemic syndrome. 〈 i 〉 Methods: 〈 /i 〉 We examined 38 patients with carotid artery stenosis ( 〉 80%) at its origin treated with CAS. Ocular circulation and symptoms were examined before, within 24 h, and 1 week, 1 month, and 3 months after CAS based on ophthalmic artery color Doppler flow imaging and ophthalmological examinations. 〈 i 〉 Results: 〈 /i 〉 Ocular circulation: Before CAS, 13 patients showed reversed ophthalmic artery flow, and 25 antegrade flow. Average peak systolic flow velocity was –0.038 m/s. Within 24 h after CAS, all patients showed antegrade ophthalmic artery flow; reversed flow before CAS was thus resolved. Average peak systolic flow velocity rose significantly to 0.36 m/s (p 〈 0.05). One week, 1 month and 3 months after CAS, there were no significant changes compared to the findings at 1 week after CAS. Ocular symptoms: Before CAS, 8 patients showed chronic ocular ischemic syndrome. During the follow-up period (mean: 2.8 years), the visual acuity improved in 7 cases. Average retinal artery pressure and arm-to-retina circulation time improved significantly to the normal level (p 〈 0.05). The other 30 patients complained of recurrent and worsened visual symptoms during the follow-up period. 〈 i 〉 Conclusion: 〈 /i 〉 CAS was effective in improving ocular circulation, and also improved the chronic ocular ischemic syndrome caused by the severe carotid artery stenosis.
Materialart:
Online-Ressource
ISSN:
1015-9770
,
1421-9786
Sprache:
Englisch
Verlag:
S. Karger AG
Publikationsdatum:
2006
ZDB Id:
1482069-9
