[Laser-assisted transcanalicular dacryocystorhinostomy. Initial results]

Area of Science:

• Ophthalmology
• Otorhinolaryngology
• Medical Technology

Background:

• Endoscopic examination of the lacrimal drainage system has advanced, prompting interest in endoscopic treatment of lacrimal disorders.
• The development of endoscopes has enabled direct visualization of the lacrimal system's mucosa.

Purpose of the Study:

• To evaluate the efficacy of laser-assisted transcanalicular dacryocystorhinostomy (DCR) for treating lacrimal drainage system disorders.
• To determine if a KTP laser can create adequate bony windows for transcanalicular DCR.

Main Methods:

• Laser-assisted transcanalicular dacryocystorhinostomy (DCR) was performed on 48 patients using a KTP laser.
• Procedures included patients with nasolacrimal duct stenosis and postsaccal stenosis.
• A 5 x 5 mm bony window was created, followed by bicanalicular intubation for 3-6 months.

Main Results:

• 83% (40/48) of patients achieved a patent lacrimal pathway with no symptoms.
• 17% (8/48) of patients experienced residual watering or restenosis.
• The KTP laser successfully created bony windows of at least 5 mm diameter.

Conclusions:

• Transcanalicular laser-assisted DCR is a feasible treatment for lacrimal drainage disorders.
• The KTP laser is adequately powered for creating the necessary bony windows in this procedure.
• Laser-assisted DCR offers a minimally invasive approach to treating specific lacrimal pathway obstructions.