| Significance of Early Visual Responses to Bevacizumab for Macular Edema in Branch Retinal Vein Occlusion. |
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Gahyung Ryu, Donghyoun Noh, Junyeop Lee, Min Sagong |
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Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, Korea. msagong@ynu.ac.kr |
| 망막분지정맥폐쇄에 동반된 황반부종에서 유리체내 베바시주맙주입술 후 초기 시력 반응의 의의 |
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류가형⋅노동현⋅이준엽⋅사공민 |
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영남대학교 의과대학 안과학교실 |
Correspondence:
Min Sagong,
Email: msagong@ynu.ac.kr
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Received: 23 March 2017 • Revised: 16 May 2017 • Accepted: 17 July 2017 |
| Abstract |
PURPOSE
To determine whether early visual acuity response to intravitreal bevacizumab in macular edema (ME) secondary to branch retinal vein occlusion (BRVO) is associated with 12-month follow-up outcome. METHODS: Sixty treatment-naïve patients (60 eyes) with ME secondary to BRVO treated with intravitreal bevacizumab (1.25 mg) were retrospectively included. Initially, all patients were injected monthly to achieve fluid resolution and followed up with a pro re nata regimen for at least 12 months. The relationship between early (month 1) and late (month 12) visual acuity response (mean change from baseline in best-corrected visual acuity [BCVA]; categorized improvement [<1, 1–3, or ≥3 logMAR lines in BCVA]) was explored. RESULTS: The proportions of eyes with <1, 1-<3, and ≥3-line improvements at 1 month were 19 eyes (31.7%), 17 eyes (28.3%), and 24 eyes (40%), respectively. Within each of the three response categories, the mean BCVA change from baseline at 12 months and onward did not vary by more than 1 line from the observed mean BCVA improvement at 1 month. Inter-cohort differences across the three response categories in mean BCVA change from baseline were statistically significant at each time point. Early BCVA response at 1 month showed significant associations with ≥3 line improvement and BCVA response at 12 months in multiple logistic and linear regression analyses. CONCLUSIONS: Early BCVA responses to bevacizumab are associated with subsequent responses over the entire 12-month duration of treatment. |
| Key Words:
Bevacizumab;Branch retinal vein occlusion;Early response;Macular edema;Visual response |
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