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Six-month results of intravitreal ranibizumab for macular edema after branch retinal vein occlusion in a single-center prospective study: visual outcomes and microaneurysm formation

 

Authors Kawamura M, Hirano Y, Yoshida M, Mizutani T, Sugitani K, Yasukawa T, Ogura Y

Received 10 April 2018

Accepted for publication 30 May 2018

Published 20 August 2018 Volume 2018:12 Pages 1487—1494

DOI https://doi.org/10.2147/OPTH.S170698

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Amy Norman

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser

Purpose: The aim of this study is to report the 6-month results after one intravitreal ranibizumab (IVR) injection followed by pro re nata dosing for macular edema (ME) after branch retinal vein occlusion.
Patients and methods: The inclusion criteria included a minimal patient age of 18 years, 20 letters or more best-corrected visual acuity (BCVA) (Early Treatment Diabetic Retinopathy Study [ETDRS] score, 77 letters or less), and central retinal thickness (CRT) of 250 microns or more. The primary outcome measure was the mean BCVA change from baseline at month 6; the secondary outcomes were mean changes in CRT, residual ME, and microaneurysm formation.
Results: Twenty patients were enrolled from March 2014 through October 2016 at Nagoya City University Hospital. The baseline mean ETDRS letters and CRT were 63.1 and 500 microns, respectively; mean time from symptom onset to initial therapy was 1.80 months; and mean ETDRS gain and CRT reduction were 15.2 letters and 230 microns, respectively. The percentages of patients with Snellen equivalent BCVAs of 20/40 (70 ETDRS letters) or better and 20/20 (85 ETDRS letters) were 90% and 15%, respectively. Residual ME and microaneurysms were observed in 85% and 35% of patients. Microaneurysm formation was associated with delayed initial therapy.
Conclusion: Prompt initiation of IVR injection provided a better visual prognosis at month 6 and suppressed the microaneurysm formation.
Keywords: branch retinal vein occlusion, macular edema, microaneurysm, ranibizumab, prompt treatment


 

摘要视频链接Six-month results of ranibizumab for BRVO in a prospective study