ヌンチャク型シリコーンチューブを用いた小児の難治性鼻涙管閉塞症の治療成績

Outcome of severe nasolacrimal duct obstruction in infants and children treated by nunchaku-type silicone tube

要約　目的：プロービングで症状が改善しない小児の鼻涙管閉塞症にヌンチャク型シリコーンチューブ（N-ST）で治療した成績の報告。対象と方法：過去5年問にN-STで治療した鼻涙管閉塞症13例を対象とした。男児10例，女児3例で，年齢は7か月～10歳（平均37か月）である。鼻涙管閉塞は先天性9例，後天性4例であった。結果：N-STの留置期間は約2か月であり，合併症はなかった。全例で流涙，眼脂，涙液メニスカス上昇などの鼻涙管閉塞症状が，自覚的および他覚的に改善した。結論：乳幼児の難治性鼻涙管閉塞に対し，シリコーンチューブ留置術は有用である。

Abstract.　Purpose：To report the outcome of treatment for severe nasolacrimal duct obstruction using nunchaku-type silicone tubing（N-ST）. Cases and Method：This retrospective study was made on 13 cases of nasolacrimal duct obstruction who failed to improve by probing and who were treated by insertion of N-ST during the past 5 years. The series comprised 10 male and 3 female children. The age ranged from 7 months to 10 years,average 37 months. Nasolacrimal duct obstruction was congenital in 9 cases and secondary in 4. Results：N-ST was retained for an average of 2 months. All the cases were free of complications. All the cases showed improved subjective and objective signs of nasolacrimal obstruction including lacrimation,eye discharge,or elevated lacrimal meniscus. Conclusion：Insertion of N-ST is effective for severe nasolacrimal duct obstruction in infants and children.