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題 名 | Perfluorodecalin Condensation on Posterior Surface of Lens Capsule and Corneal Endothelium during Vitrectomy=玻璃體切除術時Perfluorodecalin在水晶體後囊及角膜內皮細胞的凝結現象 |
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作 者 | 吳為吉; 何昭德; 何正廉; 陳墩祿; 陳珊霓; | 書刊名 | 長庚醫學 |
卷 期 | 23:12 2000.12[民89.12] |
頁 次 | 頁768-775 |
分類號 | 416.745 |
關鍵詞 | 氣體液體交換; 凝結; 高密度玻璃體取代物; 玻璃體切除術; Air-fluid exchange; Condensation; Perfluorodecalin; Vitrectomy; |
語 文 | 英文(English) |
中文摘要 | 背景: Perfluorodecalin是一種高密度之玻璃體取代物。在已施行人工水晶體摘除及人工水晶體植入的病人中,若其水晶體後囊已有破損,則在施行玻璃體切除術時,當中的氣體液體交換步驟往往會使水在人工水晶體後表面產生凝結現象;然而Perfluorodecalin所致的凝結現象卻未曾被報告過。由於Perfluorodecalin在現今之玻璃體切除術中使用日漸頻繁,如此現象值得加以報告並小心避免。 方法: 本研究包括4個有視網膜剝離合併大的視網膜破洞的病人,4位皆是男性,平均年齡為32.5歲。4位病人皆施以玻璃體切除、氣體液體交換、眼內雷射、長效氣體灌注及使用Perfluorodecalin幫助視網膜之復位。其中2位病人並且加做鞏膜扣環術。 結果: 在上述手術過程中,1位病人可觀察到Perfluorodecalin在水晶體後囊產生凝結現;另3位病人Perfluorodecalin則在角膜內皮細胞產生凝結現象。Perfluorodecalin的凝結現象造成視網膜之影像模糊,並使後續之手術步驟進行困難。一旦有凝結現象、先儘量的將殘存的Perfluorodecalin移除,然後降低眼內壓使之小於Perfluorodecalin之蒸氣壓,以促使剩餘之Perfluorodecalin蒸發散失。如此便可順利移除Perfluorodecalin之凝結現象。 結論: 本研究發現施行玻璃體切除手術時不當的使用Perfluorodecalin可能會造成Perfluorodecalin凝結現象,使得眼底影像之模糊。要避免此現象,不可將Perfluorodecalin注入充滿空氣之眼,且應縮短氣體液體交換之時間,並儘量在氣體液體交換時維持適當的眼內壓力。 |
英文摘要 | Background. High-density vitreous substitutes, including perfluorodecalin, are widely used in current vitreoretinal surgery. We report 4 cases of perfluorodecalin ondensation on the posterior capsule of the lens or corneal endothelium during vitrectomy. To the best of our knowledge, no such phenomenon has ever been reported. Methods. This study consisted of 4 patients with retinal detachment and large retinal tears. All patient were men. All of the patients underwent pars plana vitrectomy, perfluorodecalin injection, endolaser retinopexy and air-fluid exchange. Two patients received additional surgery for scleral bucking. Results. Perfluorodecalin condensation was observed on the posterior surface of the lens capsule in one phakic patient and on the endothelium in three aphakic patients during vitrectomy. The condensation obscured the image of the fundus and made air-fluid exchange difficult. The condensation could be dissipated by first removing the perfluorodecalin as completely as possible, and then by lowering the intraocular pressure below the vapor pressure of perfluorodealin. Conclusions. Perflurodecalin condensation may occur when perfluorodecalin is not properly used. To avoid forming condensation, high-density vitreous substitutes should never be injected into eyes that are completely air-filled prolonged air-fluid exchanges should be avoided and the intraocular pressure should always be kept at a higher level during air-fluid exchange. |
本系統中英文摘要資訊取自各篇刊載內容。