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Updated: May 14, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
Thermal damage influences endonasal dacryocystorhinostomy success
Marta Garcia Vilaro1, LuzMaría Vásquez, Alfonso Marin
1Institut de Microcirugia Ocular, Barcelona, Spain. martagvilaro@hotmail.com
Objective:
To compare the success rates of two surgical methods of endonasal dacryocystorhinostomy (DCR) at the stage of ostium creation. In procedure 1, a Colorado needle is used to create the mucosectomy, while in procedure 2 no heated instruments are applied to the mucosa.
Methods:
A total of 173 patients (218 eyes) underwent endonasal DCR between 2006 and 2009. Efficacy was assessed by a fluorescein endoscopic test at 6 months of follow-up.
Results:
The success rate in group 2 was higher than in group 1 (91 vs. 81%, p < 0.05).
Conclusions:
We have found a significant difference, which supports that a 'cold' surgical technique may be better than the use of heated instruments.
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