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Related Experiment Video

Updated: May 1, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
07:30

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

Published on: October 13, 2017

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External vs. endonasal dacryocystorhinostomy: has the current view changed?

G Savino1, R Battendieri1, S Traina1

  • 1Istituto di Oftalmologia.

Acta Otorhinolaryngologica Italica : Organo Ufficiale Della Societa Italiana Di Otorinolaringologia E Chirurgia Cervico-Facciale
|April 9, 2014
PubMed
Summary

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External dacryocystorhinostomy was the standard for nasolacrimal duct obstruction. Endonasal techniques now offer comparable outcomes, with surgical choice depending on surgeon, resources, and patient factors.

Area of Science:

  • Ophthalmology
  • Otorhinolaryngology

Background:

  • External dacryocystorhinostomy (E-DCR) was historically the gold standard for nasolacrimal duct obstruction.
  • Advances in instrumentation have revived interest in endonasal dacryocystorhinostomy (EN-DCR).

Purpose of the Study:

  • To compare the functional outcomes of E-DCR and EN-DCR.
  • To evaluate the factors influencing surgical technique selection for nasolacrimal duct obstruction.

Main Methods:

  • Comparative analysis of surgical outcomes.
  • Review of recent advancements in dacryocystorhinostomy procedures.

Main Results:

  • Outcomes between E-DCR and EN-DCR have become increasingly similar over the past decade.
  • The selection of surgical approach is now influenced by surgeon experience, healthcare system resources, and patient preferences.
Keywords:
DacryocystorhinostomyEndonasal endoscopyEpiphoraNasolacrimal duct obstruction

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Last Updated: May 1, 2026

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Conclusions:

  • Both E-DCR and EN-DCR are viable surgical options for nasolacrimal duct obstruction.
  • Personalized patient care and resource availability are key considerations in choosing the optimal surgical technique.