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Related Experiment Video

Updated: Jul 3, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Published on: October 13, 2017

Interactive image-guided endoscopic dacryocystorhinostomy.

Shelley Day¹, Thomas N Hwang, Steven D Pletcher

¹Department of Ophthalmology, University of California San Francisco, San Francisco, California 94143, USA.

Ophthalmic Plastic and Reconstructive Surgery

|July 23, 2008

Summary

This summary is machine-generated.

CT-guided endoscopic dacryocystorhinostomy successfully treated bilateral nasolacrimal duct obstruction in a patient with severe nasal scarring. This advanced technique enabled effective surgical management of a complex case.

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Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

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Published on: May 23, 2021

Area of Science:

Ophthalmology
Otolaryngology
Medical Imaging

Background:

Nasolacrimal duct obstruction (NLDO) can necessitate surgical intervention.
Standard dacryocystorhinostomy (DCR) may be challenging in cases with significant nasal anatomical distortion and scarring.

Observation:

A patient with a history of cocaine abuse presented with bilateral NLDO, oronasal fistula, and severe nasal scarring, obliterating normal landmarks.
Extensive scar tissue and contracted turbinates precluded conventional DCR approaches.

Findings:

Endoscopic DCR utilizing computed tomography (CT)-guided navigation was performed to identify and expose the superior nasolacrimal duct.
The lacrimal sac was marsupialized, and silicon stents were placed intranasally, with successful bilateral management.
Post-stent removal, the patient experienced resolution of epiphora, indicating a successful surgical outcome.

Implications:

CT-guided navigation serves as a valuable adjunct for DCR, enhancing safety and efficacy in complex surgical scenarios.
This technique allows for successful management of challenging NLDO cases that might otherwise be inoperable with standard methods.
The study highlights the potential of advanced imaging guidance in overcoming anatomical challenges in sinonasal and lacrimal surgery.