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要約 目的:網膜静脈分枝閉塞症に併発した黄斑浮腫へのベバシズマブ硝子体内投与の結果の報告。対象と方法:網膜静脈分枝閉塞症22例22眼を対象とした。男性12例,女性10例で,年齢は47~81歳(平均64歳)である。ベバシズマブ1.25mgを硝子体内に注入し,6か月以上の経過を追った。結果:視力は16眼で改善し,3眼で不変,3眼で悪化した。最終診察時の中心窩網膜厚,初回投与後の視細胞内外節の接合部の状態,浮腫再燃の有無が最終視力に有意に影響した。6眼では再燃がなく,15眼では投与後平均2.75か月で再燃し,うち10眼には平均2.5回の投与をした。再燃は65歳未満で,黄斑浮腫の期間が3か月未満であるときに多かった。結論:網膜静脈分枝閉塞症に併発した黄斑浮腫に対し,ベバシズマブ硝子体内投与は有効である。
Abstract. Purpose:To report the outcome of intravitreal injection of 1.25 mg bevacizumab for macular edema secondary to branch retinal vein occlusion(BRVO). Cases and Method:This study was made on 22 eyes of 22 cases of BRVO. The series comprised 12 males and 10 females. The age ranged from 47 to 81 years,average 64 years. Results:After follow-up for 6 months or longer,visual acuity improved in 16 eyes,remained unchanged in 3,and deteriorated in 3. Final visual acuity was influenced by final central retinal thickness,initial status of junction between inner and outer photoreceptor segments,and recurrence of macular edema. Macular edema resolved in 6 eyes after one injection and recurred in 15 eyes after an average of 2.75 months,of which 10 eyes received an average of 2.5 injections. Recurrence tended to occur in cases under 65 years of age and in eyes treated within 3 months after onset. Conclusion:Intravitreal bevacizumab is effective for macular edema secondary to BRVO.
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