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Updated: Aug 19, 2025
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Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
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Assessment of Rhinostomy Parameters in Endonasal Dacryocystorhinostomy
B G Prakash1, S K Prabhakar2, Aamina Nahid1
1Department of Otorhinolaryngology, JSS Academy of Higher Education and Research, Mysore, Karnataka India.
Summary
Endonasal dacryocystorhinostomy (DCR) with silicone stents offers a high success rate for chronic dacryocystitis. The Dacryocystorhinostomy Outcome Score (DOS) system effectively evaluates surgical success based on ostium parameters.
Area of Science:
- Ophthalmology
- Surgical Innovation
Background:
- Chronic dacryocystitis often causes epiphora, necessitating surgical intervention to restore tear drainage.
- Endonasal dacryocystorhinostomy (DCR) has become a popular surgical approach.
- Silicone bicanalicular stents enhance surgical outcomes in endonasal DCR.
Purpose of the Study:
- To evaluate the efficacy of endonasal DCR using silicone bicanalicular stents.
- To assess the utility of the Dacryocystorhinostomy Outcome Score (DOS) system in predicting surgical success.
Main Methods:
- A study involving 35 patients with chronic dacryocystitis undergoing endonasal DCR with silicone stents.
- Postoperative follow-up at 1 week, 3 weeks, 6 weeks, and 6 months.
- Evaluation of DCR ostium parameters using the DOS system; stent removal at 6 weeks.
Main Results:
- The overall success rate for endonasal DCR with silicone stents was 89%.
- Successful surgeries correlated with DOS scores above 30.
- Failed cases showed DOS scores between 22 and 28.
Conclusions:
- Endonasal DCR with silicone stents is an effective treatment for chronic dacryocystitis.
- The DOS scoring system is a valuable tool for assessing DCR ostium parameters and predicting surgical outcomes.
- Optimal surgical success depends on ostium parameters and silicone stent placement.
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