Korean J Ophthalmol > Epub ahead of print
DOI: https://doi.org/10.3341/kjo.2021.0117    [Epub ahead of print]
Published online January 24, 2022.
Long-Term Efficacy of Dacryoendoscopy-Guided Recanalization and Silicone Tube Intubation
Sung Eun Kim1, Jin Uk Beak2, Ji-Sun Paik2, Juwan Park3, Suk-Woo Yang1
1Department of Ophthalmology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
2Department of Ophthalmology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
3ICON Eye Center
Correspondence:  Juwan Park, Tel: +82-2-6485-8275, Fax: +82-2-6485-8276, 
Email: parkjw120@gmail.com
Suk-Woo Yang, Tel: +82-10-8911-4047, Fax: +82-2-599-7405, 
Email: yswoph@hanmail.net
Received: 22 July 2021   • Revised: 16 December 2021   • Accepted: 22 December 2021
Abstract
Purpose
To investigate the long-term efficacy of dacryoendoscopy-guided recanalization and silicone tube intubation in patients with obstruction in the lacrimal drainage system and to identify factors related to surgical outcome.
Methods
We retrospectively reviewed the medical records of patients with primary nasolacrimal duct obstruction and canalicular obstruction who underwent dacryoendoscopy-guided recanalization and silicone tube intubation between August 2014 and March 2016. Factors related to surgical outcome were examined and compared between the success group (eyes with complete response and partial response) and the failure group. Kaplan-Meier survival analysis and multivariable logistic regression analysis were used to analyze the success rate according to the factors found to have statistical significance.
Result
s: The study included 74 eyes of 51 patients. The mean age of the patients was 60.3 ± 10.0 years (range: 34–80 years). The success group consisted of 66 eyes (89.2%) (complete response: 56 eyes (75.7%) and partial response: 10 eyes (13.5%)) and the failure group consisted of 8 eyes (10.8%). The median follow-up period was 58 months (range: 6.5–72 months), and the overall success rate was 89.2%. Compared to the eyes with preoperative lacrimal irrigation test of partial passage, the eyes with no passage were associated with a lower success rate (95.9% vs. 76.0%, P = 0.01). Postoperative inflammation was also associated with a lower success rate (96.6% vs. 60.0%, P < 0.001).
Conclusion
Dacryoendoscopy-guided recanalization and silicone tube intubation is effective and can be considered a first-choice of treatment for eyes which show partial passage in the lacrimal irrigation test. The management of postoperative inflammation is essential to ensure surgical success.
Key Words: Dacryocystorhinostomy; Dacryoendoscopy; Lacrimal endoscopy; Nasolacrimal duct obstruction; Silicone tube intubation
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