Eagle涙道チューブ使用例の検討

Clinical evaluation of Eagle monocanalicular lacrimal stent

要約　目的：涙点プラグつき単管型涙道ステントであるEagle涙道チューブの使用経験の報告。対象と方法：涙小管閉塞がある女性7例7側を対象とした。年齢は40～76歳（平均64歳）である。上下の涙小管へのステント留置は困難であった。鼻涙管閉塞が5例，涙囊炎が2例にあった。結果：Eagle涙道チューブの留置期間は1～12か月（平均6か月）であり，全例で涙管の通水が可能になった。抜去の1か月後に涙囊炎による再閉塞が1例，涙点の肉芽形成，プラグの偏位，通水時のプラグ埋没が各1例にあった。結論：Eagle涙道チューブは涙小管閉塞に対するステントとして有効であるが，通水時のプラグ埋没などに留意する必要がある。

Abstract.　Purpose：To present a clinical evaluation of Eagle lacrimal tube,a monocanalicular lacrimal stent with a lacrimal plug. Cases and Method：This study was made on 7 females who had unilateral obstruction of lacrimal canaliculus. The age ranged from 40 to 76 years,average 64 years. Use of stent in both upper and lower canaliculi was not possible. Obstruction of nasolacrimal duct was present in 5 cases and dacryocystitis in two. All the cases received insertion of Eagle stent in upper or lower canaliculus. Results：Eagle stent was retained for one to 12 months,average 6 months. All the cases showed patent passage of lacrimal duct,after which one case developed dacryocystitis with reobstruction. One case each showed granulation of lacrimal punctum,dislocation of the plug,and migration of the plug during irrigation. Conclusion：The Eagle lacrimal tube was effective for canalicular obstruction. Care is needed for complications including migration of the plug during irrigation.