期刊
RETINA-THE JOURNAL OF RETINAL AND VITREOUS DISEASES
卷 31, 期 6, 页码 1068-1074出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/IAE.0b013e31820c83c2
关键词
branch retinal vein occlusion; bevacizumab; vascular endothelial growth factor; capillary nonperfusion; ischemia
资金
- Ministry of Education, Culture, Sports, Science, and Technology, Japan [18591913, 19500416, 18390466]
- Grants-in-Aid for Scientific Research [19500416, 23592603] Funding Source: KAKEN
Purpose: To study the effect of an intravitreal bevacizumab (IVB) on the retinal ischemia in eyes with a branch retinal vein occlusion. Methods: Fluorescein angiography was performed before and 1 month after the IVB (1.25 mg/0.05 mL) in 58 consecutive eyes of 58 patients with macular edema secondary to a branch retinal vein occlusion. The area of capillary nonperfusion was measured on an early-phase fluorescein angiography image by an area measurement program, and the area was expressed relative to the optic disk area (DA). A blockage of the fluorescence by the retinal hemorrhage was distinguished from nonperfusion by comparisons with retinal photographs. Results: Thirty-seven of 58 eyes did not have any capillary nonperfusion before the IVB, and capillary nonperfusion developed in 3 of these 37 eyes 1 month after the IVB. The area of nonperfusion in these 3 eyes was 0.13, 0.47, and 0.60 DA. Twenty-one of the 58 eyes had capillary nonperfusion before the IVB, and the mean (+/-SD) area of nonperfusion was 3.45 +/- 4.66 DA before the IVB and 3.45 +/- 5.19 DA 1 month after the IVB. This change was not significant (P = 0.36). An increase in the area of capillary nonperfusion of >1.0 DA after the IVB was seen in only 1 of all 58 eyes. Conclusion: These results suggest that the incidence of a significant increase in the area of capillary nonperfusion (>1 DA) during the 1 month after the IVB is very low in eyes with branch retinal vein occlusion. RETINA 31:1068-1074, 2011
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