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Tracheostomy Decannulation

Tracheostomy Decannulation

Tracheostomy decannulation is a significant milestone in the liberation of mechanically ventilated patients. Despite its importance, there is no universally accepted protocol for this procedure. This demands an evidence-based, individualized approach.
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Related Experiment Video

Updated: May 24, 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

Endoscopic dacryocystorhinostomy without silicone stent.

Je Yeob Yeon¹, Woo Sub Shim

¹Department of Otorhinolaryngology - Head and Neck Surgery, Chungbuk National University, Cheongju, Korea.

Acta Oto-Laryngologica

|March 6, 2012

Summary

For endoscopic dacryocystorhinostomy (DCR), stents are not essential for nasolacrimal duct obstruction cases. However, silicone stents appear beneficial for common canalicular obstruction, yielding better outcomes in DCR surgery.

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Last Updated: May 24, 2026

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

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Area of Science:

Ophthalmology
Otorhinolaryngology
Surgical Innovation

Background:

Nasolacrimal duct (NLD) obstruction and common canalicular obstruction are common causes of epiphora.
Endoscopic dacryocystorhinostomy (DCR) is a surgical procedure to restore NLD patency.

Purpose of the Study:

To evaluate the surgical outcomes of endoscopic DCR without silicone stent usage.
To compare the efficacy of silicone stents versus no stents in DCR surgery based on obstruction type.

Main Methods:

A comparative study involving 36 patients (41 eyes) undergoing endoscopic DCR.
Patients were categorized into groups based on silicone stent use (yes/no) and obstruction level (common canalicular vs. NLD).
Surgical success was assessed by symptom improvement and rhinostomy patency via nasal endoscopy.

Main Results:

Overall epiphora improvement rates were similar between stent and no-stent groups (84.2% vs. 81.8%).
For common canalicular obstruction, the success rate was significantly higher with silicone stents (84.5%) compared to no stents (57.1%).
For NLD obstruction, the no-stent group showed a higher success rate (93.3%) than the stent group (83.0%).

Conclusions:

Endoscopic DCR can achieve successful outcomes without stents in NLD obstruction cases.
Silicone stent use appears beneficial in common canalicular obstruction cases undergoing endoscopic DCR.
The decision to use a silicone stent in DCR may depend on the specific level of nasolacrimal pathway obstruction.