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(展示240) 特発性頸動脈海綿静脈洞瘻(carotid cavernous fistula:CCF)に続発した網膜中心静脈閉塞症(central retinal vein occ正usion:CRVO)3例を経験した。82歳女性例では,CRVOによる硝子体網膜出血が生じたが,自然吸収した。67歳女性例では,進行性の軽いCRVOがあり,CCFに塞栓術を行ったのち増悪し,最終視力が0.06になった。58歳女性例では,塞栓術ののち軽症のCRVOが発症したが自然寛解した。以上の所見から,CCFに続発するCRVOは,網膜中心静脈の血栓形成によるらしいこと,そしてCCFに対する塞栓術がCRVOを誘発または悪化させることがあることを示している。
We observed 3 cases of central retinal vein occlusion (CRVO) following spontaneous carotid cavernous fistula (SCCF). One case, an 82-year-old female, underwent spontaneous resolution after an episode of vitreoretinal hemorrhage due to CRVO. Another case, a 67-year-old female, developed impending and progressive CRVO. After embolization therapy for SCCF, the CRVO further progressed and resulted in final visual acuity of 0.06. The third case, a 58-year-old female, developed initial signs of CRVO after embolization. The CRVO resolved soon without visual impairment. The findings show that the CRVO was due to formation of thrombus in the central retinal vein and that it may progress, paradoxically, during the process of attempted cure of SCCF.
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