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Br J Ophthalmol 2000;84:914-916 ( August )

Scientific correspondence

Local intra-arterial fibrinolysis for acute occlusion of the central retinal artery: a meta-analysis of the published data S Beatty, K G Au Eong

Academic Department of Ophthalmology, Manchester Royal Eye Hospital

Correspondence to: S Beatty, Medical Retina Unit, Department of Clinical Ophthalmology, Moorfields Eye Hospital, City Road, London EC1V 2PD stephen{at}stiofanbetagh.demon.co.uk

Accepted for publication 16 March 2000

BACKGROUND/AIM---Central retinal artery occlusion (CRAO) is typically associated with a poor visual outcome. Several favourable reports of local intra-arterial fibrinolysis (LIF), which involves the superselective administration of a thrombolytic agent directly into the ophthalmic artery, have appeared in the recent literature. The aim of this study was to critically appraise these studies in a collective fashion.
METHODS---A meta-analysis was performed of all the published literature germane to LIF in cases of CRAO.
RESULTS---Of the 16 studies identified, all were retrospective and non-randomised. After correction for data duplication, the results of LIF in 100 patients can be reported. A final acuity of 6/6 or better was seen in 14% of patients following LIF, and a visual result of 6/12 or better was seen in 27% of subjects. A poor final acuity of 3/60 or worse was seen in 60.6% of eyes treated with local intra-arterial fibrinolysis. These results compare favourably with conventional forms of therapy. Potentially serious complications were seen in four patients, but no patient suffered a permanent neurological deficit.
CONCLUSION---The results of this study suggest that there may be a marginal visual benefit associated with LIF compared with conventional management of CRAO. However, the methodology of the cited studies was often unsatisfactory, and a randomised controlled trial of LIF in cases of CRAO is justified. Outside of a randomised clinical trial, the use of superselective fibrinolytic therapy for CRAO cannot be recommended on the basis of current evidence.

© 2000 by British Journal of Ophthalmology


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