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Early panretinal photocoagulation for ERG-verified ischaemic central retinal vein occlusion.
MedLine Citation:
PMID:  22176715     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Purpose:  We have previously shown that photopic cone b-wave implicit time ≥35.0 ms in 30 Hz flicker electroretinography (ERG) predicts ocular neovascularization (NV) in central retinal vein occlusion (CRVO). Here, we evaluate the effects of early panretinal photocoagulation (PRP) in patients with ERG-verified ischaemic CRVO. Methods:  Patients with CRVO, admitted to our department between 2000 and 2008, were classified as having ischaemic or non-ischaemic CRVO based on the ERG-results. In a first group of 71 patients, 18 patients had ischaemic CRVO and were assigned to standard treatment that is regular examinations and PRP as soon as NV was found. In a consecutive group of 65 patients, 18 patients with ischaemic CRVO received early PRP. In this group, ERG was performed on average 6 weeks after the first symptoms of CRVO. The patients underwent PRP as soon as possible after the ERG-examination, and the treatment was completed within one to three sessions. Results:  Twelve patients in the standard treatment group developed neovascular glaucoma during a mean period of 5 months after the CRVO. In the early treatment group, one patient developed subtle iris rubeosis 7 months after PRP. Otherwise, none of the patients showed any signs of ocular NV, and the intraocular pressure remained within normal range, without the necessity of supplementary medication, during a mean follow-up of 41 months. Conclusions:  This study indicates that ocular NV in patients with CRVO can be predicted by photopic 30 Hz flicker ERG and that early PRP in ERG-verified ischaemic CRVO could be suggested as standard treatment.
Authors:
Ole Kjeka; Ragnhild W Jansson; Cecilie Bredrup; Jørgen Krohn
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-16
Journal Detail:
Title:  Acta ophthalmologica     Volume:  -     ISSN:  1755-3768     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101468102     Medline TA:  Acta Ophthalmol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 The Authors. Acta Ophthalmologica © 2011 Acta Ophthalmologica Scandinavica Foundation.
Affiliation:
Department of Ophthalmology, Haukeland University Hospital, Bergen, Norway Department of Clinical Medicine, Section of Ophthalmology, University of Bergen, Bergen, Norway.
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