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要約 目的:原発開放隅角緑内障(POAG)と落屑緑内障(XFG)におけるEX-PRESS® glaucoma filtration device併用濾過手術(EX-PRESS)の中間成績を報告する。
対象および方法:大阪医科大学眼科にてEX-PRESSを施行し,術後3年以上経過観察できた26例32眼。POAG群(14例18眼),XFG群(12例14眼)における術後3年までの成功率,眼圧,点眼および視野スコア,角膜内皮細胞数,強膜弁縫合数,レーザー切糸数を比較検討した。手術成功は,定義1を眼圧21mmHg以下,定義2を眼圧15mmHg以下とした。
結果:術後1年成功率はPOAG,XFG群それぞれ定義1(96%,95%),定義2(92%,83%),術後3年(78%,60%),(62%,33%)であった(定義1,p=0.41,定義2,p=0.01)。術後3,6か月,1,3年で眼圧,術後3年で点眼スコアがXFG群において有意に高かった。視野スコア,角膜内皮細胞数,強膜弁縫合数,レーザー切糸数は両群間に有意差はなかった。
結論:XFGに対するEX-PRESSの中間成績は,POAGと比較し劣る可能性がある。
Abstract Purpose:To compare the intermediate-term outcome of primary open-angle glaucoma(POAG)and exfoliation glaucoma(XFG)cases treated with EX-PRESS® Glaucoma Filtration Device(Alcon)implantation.
Methods:This study involved 32 eyes of 26 cases that underwent EX-PRESS® implantation at Osaka Medical College. Between the POAG group(18 eyes, 14 cases)with the XFG group(12 eyes, 14 cases), we compared and analyzed the surgical success rate, intraocular pressure(IOP)reduction, medication and visual field score, endothelial density, and the numbers of scleral flap suture and laser-suture lysis during a followed-up period of more than 3-years postoperative. Surgical success was defined as(A)IOP<21 mmHg and(B)IOP<15 mmHg.
Results:In the POAG group and XFG group, the survival rate at 1- and 3-years postoperative was 96% and 95%, and 78% and 60%, respectively, for A, and 92% and 83%, and 62% and 33%, respectively, for B. A significant difference in surgical success B was found between the two groups(p=0.01). The XFG group had significant high IOP at 3-and 6-months and 1-and 3-years postoperative and a significant medication score at 3-years postoperative. In all other parameters, no significant difference was found between the two groups.
Conclusion:Our findings indicate the possibility that the intermediate-term outcome of EX-PRESS® implantation for XFG is poorer compared with that for POAG.
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