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Updated: Jul 20, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
Mechanical endonasal dacryocystorhinostomy with mucosal flaps
Angelo Tsirbas1, Peter John Wormald
1Department of Orbital and Ophthalmic Surgery, Jules Stein Eye Institute, David Geffen School of Medicine at the University of California at Los Angeles, 100 Stein Plaza, Los Angeles, CA 90095, USA. angelotsirbas@hotmail.com
Mechanical endonasal dacryocystorhinostomy (DCR) creates a large rhinostomy while preserving nasal and lacrimal mucosa. This minimally invasive technique offers advantages similar to the external approach, requiring anatomical knowledge and teamwork.
Area of Science:
- Otolaryngology
- Ophthalmology
- Minimally Invasive Surgery
Background:
- Dacryocystorhinostomy (DCR) is a surgical procedure to restore tear drainage.
- The external approach is effective but can leave visible scars.
- Endonasal DCR offers a minimally invasive alternative.
Purpose of the Study:
- To describe the technique and advantages of mechanical endonasal DCR.
- To highlight the importance of intranasal anatomy and multidisciplinary collaboration.
Main Methods:
- Mechanical endonasal dacryocystorhinostomy (DCR) involves creating a large rhinostomy.
- Preservation of the lacrimal and nasal mucosa is a key feature.
- The technique aims to replicate the benefits of the external approach minimally invasively.
Main Results:
- Mechanical endonasal DCR successfully replicates the advantages of the external approach.
- Minimally invasive techniques are utilized.
- The procedure requires detailed knowledge of intranasal anatomy.
Conclusions:
- Mechanical endonasal DCR is an effective minimally invasive surgical option.
- Successful conversion from external to endonasal DCR relies on anatomical expertise.
- Multidisciplinary team collaboration is crucial for optimal outcomes.
