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Related Concept Videos

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques01:30

Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques

Airway management is essential in emergency and surgical medicine, ensuring ventilation and oxygenation in patients who cannot maintain their own airway. Clinicians use a range of techniques and devices to secure the airway, depending on the patient’s condition and the clinical context. Key methods include endotracheal intubation, rapid sequence intubation (RSI), supraglottic airway devices, and advanced visualization aids. In cases where these approaches fail, surgical airway interventions are...
Tracheostomy Care I: Pre-procedural Steps01:16

Tracheostomy Care I: Pre-procedural Steps

A tracheostomy is a surgical technique that involves making an incision in the neck to provide access to the trachea. It is frequently used in medical conditions such as airway obstruction and prolonged mechanical ventilation. Effective nursing management is crucial for the long-term success of a tracheostomy.
Required Equipment
The equipment necessary for tracheostomy care includes:
Tracheostomy: Procedure and Tubes01:28

Tracheostomy: Procedure and Tubes

A tracheostomy is a surgical procedure that creates an artificial opening into the trachea, typically at the second or third cartilaginous ring level. This opening allows the insertion of a tracheostomy tube, which can replace an endotracheal tube, provide mechanical ventilation, bypass an upper airway obstruction, or remove accumulated tracheobronchial secretions.
Tracheostomy tubes can be made of semiflexible plastic (polyurethane or silicone), rigid plastic, or metal, and they come in...
Tracheostomy Decannulation01:21

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.
Description of the Procedure
Decannulation refers to the permanent removal of the tracheostomy tube, signaling the resolution of the condition that initially necessitated the tracheostomy. The process requires a well-coordinated interplay between...

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Related Experiment Video

Updated: May 8, 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

Dacryocystorhinostomy: History, evolution and future directions.

Vladimir S Yakopson1, Joseph C Flanagan, Daniel Ahn

  • 1Wills Eye Institute, 840 Walnut St, Suite 910, Philadelphia, PA 19107, USA.

Saudi Journal of Ophthalmology : Official Journal of the Saudi Ophthalmological Society
|August 21, 2013
PubMed
Summary

Dacryocystorhinostomy (DCR) surgery effectively treats blocked tear ducts. Both external and endoscopic approaches offer high success rates for nasolacrimal duct obstruction.

Keywords:
Dacryocystorhinostomy, Endoscopic dacryocystorhinostomy, Balloon dacryoplasty, Dacryocystitis, Nasolacrimal duct obstruction

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Area of Science:

  • Ophthalmology
  • Otorhinolaryngology

Background:

  • Nasolacrimal duct obstruction causes chronic dacryostenosis.
  • Dacryocystorhinostomy (DCR) is the preferred surgical intervention.
  • The procedure is indicated when canaliculi are patent and the lacrimal pump functions.

Purpose of the Study:

  • To review the historical development of DCR.
  • To outline current surgical techniques and their evolution.
  • To discuss complications and future trends in DCR.

Main Methods:

  • Review of historical data and surgical literature.
  • Comparison of external and endonasal endoscopic DCR approaches.
  • Analysis of success rates, complications, and outcomes.

Main Results:

  • DCR is highly successful for nasolacrimal duct obstruction.
  • Both external and endoscopic DCR yield comparable high success rates.
  • Understanding historical evolution informs current best practices.

Conclusions:

  • DCR remains a cornerstone treatment for nasolacrimal duct obstruction.
  • Surgical technique choice depends on clinical factors and surgeon expertise.
  • Ongoing evolution promises improved outcomes and fewer complications.