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要約 目的:硝子体手術既往眼あるいは硝子体手術と同時に,経毛様体扁平部挿入型Baerveldt緑内障インプラント挿入チューブシャント手術(BGI手術)を行った症例の長期術後成績を評価した。
対象と方法:対象はBGI手術を施行し2年以上経過観察できた51例57眼。原因疾患は血管新生緑内障が49眼,続発性緑内障が4眼,原発開放隅角緑内障が3眼,原発閉塞隅角緑内障が1眼であった。術前後の眼圧および点眼・内服スコア,そして合併症の有無を評価した。
結果:術前,術後1および2年の平均眼圧は,それぞれ39.1±13.1,14.6±5.5,14.3±5.1mmHgと術前に比較し有意に低下した。術前,術後1および2年後の点眼・内服スコアは,それぞれ4.3±1.4,1.7±1.4,1.9±1.5であり,有意に減少した。術後の合併症は,脈絡膜剝離10眼(18%),硝子体出血14眼(25%),高眼圧14眼(25%),低眼圧3眼(5%),虹彩後癒着4眼(7%),前房出血3眼(5%),角膜上皮障害1眼(2%),チューブ関連合併症(Hoffman elbow露出5眼:9%,チューブ露出2眼:4%)で,これに伴って眼内炎を2眼(4%)で認めた。
結論:経毛様体扁平部挿入型BGI挿入チューブ手術により長期的な眼圧コントロールを得られたが,チューブの露出に伴う眼内炎など重篤な合併症をきたす症例も散見された。
Abstract Purpose:To report a long-term outcome in glaucoma patients who underwent Baerveldt glaucoma implant(BGI, pars plana model)surgery.
Subjects and Method:This study included 57 eyes of 51 cases which were observed more than 2 years after BGI surgery. There were 49 eyes with neovascular glaucoma, 4 with secondary glaucoma, 3 with primary open-angle glaucoma and 1 with primary angle-closure glaucoma. All patients had a history of vitrectomy or underwent vitrectomy simultaneously. The pre- and post-operative intraocular pressure(IOP), medication score and complications were evaluated.
Results:The mean IOPs reduced from 39.1±13.1 preoperatively to 14.6±5.5 and 14.3±5.1 mmHg at 1 and 2 years post-operatively. Medication scores decreased from 4.3±1.4 pre-operatively to 1.7±1.4 and 1.9±1.5 at 1 and 2 years post-operatively. Postoperative complications included choroidal detachment in 10 eyes(18%), vitreous hemorrhage in 14(25%), high IOP in 14(25%), low IOP in 3(5%), posterior synehiae in 4(7%), hyphema in 3(5%), corneal epithelial damage in 1(2%), tube-related complications(Hoffman elbow exposure in 5:9%, tube exposure in 2:4%), and endophthalmitis associated with BGI exposure in 2(4%).
Conclusion:Favorable IOP control was achieved by BGI surgery for a long period. Attention is needed to serious complications such as endophthalmitis associated with tube exposure.
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