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Related Concept Videos

Tracheostomy Decannulation01:21

Tracheostomy Decannulation

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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 4, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
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Endoscopic dacryocystorhinostomy with flap suturing.

Milind V Kirtane1, Abhineet Lall2, Kashmira Chavan1

  • 1P D Hinduja Hospital & Medical Research Centre, Mahim, Mumbai, India.

Indian Journal of Otolaryngology and Head and Neck Surgery : Official Publication of the Association of Otolaryngologists of India
|January 16, 2014
PubMed
Summary
This summary is machine-generated.

This study introduces a modified endoscopic dacryocystorhinostomy (DCR) technique that mimics external DCR. The modified endoscopic DCR achieved high success rates, suggesting it can replace the traditional external approach for nasolacrimal duct obstruction.

Keywords:
DacrycystorhinostomyDacryocystitisEndoscopic surgical procedureLacrimalLacrimal apparatusLacrimal apparatus diseaseLacrimal ductLacrimal duct obstructionLacrimal glandMucocele

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Area of Science:

  • Otolaryngology
  • Ophthalmology
  • Surgical Innovation

Background:

  • Endoscopic dacryocystorhinostomy (DCR) efficacy varies across centers.
  • External DCR is often considered the gold standard for nasolacrimal duct obstruction.
  • A need exists for an endoscopic DCR technique that replicates external DCR's anatomical principles.

Purpose of the Study:

  • To describe a modified endoscopic DCR technique.
  • To anatomically simulate external DCR using an endonasal approach.
  • To assess the success rates of this modified endoscopic DCR technique.

Main Methods:

  • Prospective, nonrandomized, noncomparative interventional case series.
  • Included patients with symptomatic, clinical, and radiological evidence of nasolacrimal duct obstruction.
  • Modified standard endoscopic DCR by creating wide lacrimal sac exposure and suturing the medial sac wall to the lateral nasal wall using vascular clips or vicryl sutures.

Main Results:

  • Twenty patients (11 female, 9 male; average age 56.86 years) were included.
  • Primary success rate of 95% and ultimate success rate of 100% for nasolacrimal duct (NLD) block.
  • Overall success rate of 82.6% when including common canalicular block cases.

Conclusions:

  • The modified endoscopic DCR technique achieves high success rates.
  • This minimally invasive approach offers a viable alternative to external DCR.
  • Endoscopic DCR, with this modification, can potentially replace external DCR as the standard treatment.