Effect of arteriovenou heathotomy on retinal blood flow and macular edema in patient with branch retinal vein occluion

Purpoe To determine the effect of arteriovenou heathotomy on retinal blood flow (RBF) in eye with branch retinal vein occluion (BRVO). Deign Interventional cae erie. Method even eye of 7 patient with BRVO underwent heathotomy and were followed for more than 6 month. Reult At 1 week potoperatively, the RBF in the affected veel wa ignificantly improved from 14.1 ± 5.7 to 27.3 ± 11.3 pixel2/ec (P< 0.01), and the foveal thickne (FT) wa ignificantly reduced from 536 ± 84 to 366 ± 134 μm (P = 0.03). However, the RBF wa reduced again to 11.7 ± 7.7 pixel2/ec at 1 month potoperatively, and the FT wa increaed to 424 ± 184 μm. Concluion Arteriovenou heathotomy led to a tranient improvement of the RBF and wa effective in reducing macular edema. It i not clear whether the tranient effect of heathotomy affect the long-term viual acuity and macular edema.