Related Experiment Video
Updated: Aug 19, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
Endoscopic intranasal dacryocystorhinostomy results in four patients
1Department of Otolaryngology, Head and Neck Surgery, University of Southern California School of Medicine, Los Angeles 90033.
Abstract:
Dacryocystorhinostomy is commonly performed through an external incision. Several transnasal approaches were described earlier in this century but they failed to gain popularity probably because of the difficult exposure. The recent development of nasal endoscopes has greatly improved intranasal visualization. A prior cadaver study demonstrated the feasibility of a transnasal approach. This study presents early results on four patients.
Related Concept Videos
Epistaxis
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...
Tracheostomy Decannulation
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...
Suctioning the Nasopharyngeal Airway
Equipment Required

