Preloaded Monoka (Lacrijet) and congenital nasolacrimal duct obstruction: Initial results.

Study Objective: To study the performance of a pre-loaded Monoka stent in the management of congenital nasolacrimal duct obstruction (CNLDO).

Study Design: Non-randomized study of consecutive cases.

Materials And Methods: A preloaded classic Monoka silicone stent contained entirely inside its introducer (Lacrijet) was used to treat a consecutive series of subjects with CNLDO over an 11-month period (May 2019-March 2020).

Complex Stenoses and CT Features of the Nasolacrimal Canal in Congenital Nasolacrimal Duct Obstruction.

Purpose: To study the CT appearance of the nasolacrimal canal (NLC) in cases of congenital nasolacrimal duct obstruction (CNLDO) where there is a tactile sensation of a hard contact (HC) stop in the duct preventing stent intubation.

Methods: The authors retrospectively reviewed all consecutive cases of chronic CNLDO observed between 2003 and 2018 in which an apparent HC obstruction prevented nasolacrimal intubation. CT scans were reviewed to determine the cause of probing failure: distal stenosis, loss of parallelism of the NLC walls, abnormal angulations or an adjacent obstacle blocking tear outflow.

Complex Bony Congenital Nasolacrimal Duct Obstruction Caused by an Adjacent Canine Tooth Bud.

The authors report the case of a 7-year old child with failed probing with stent intubation, who was found to have an unusual curvature of the nasolacrimal duct on the symptomatic side. CT imaging revealed a permanent maxillary canine tooth adjacent to the duct. It appeared that the relationship of the tooth bud to the curved nasolacrimal duct was most likely responsible for the symptoms of epiphora on this anomalous side.

Endoscopic dacryocystorhinostomy: the keys to surgical success.

Purpose: To describe a surgical technique for endoscopic endonasal dacryocystorhinostomy.

Methods: A consecutive case series of adult endoscopic dacryocystorhinostomy surgery was reviewed. The specific surgical approach of uncinectomy with or without septoplasty and anterior middle turbinectomy was noted.

Pushed monocanalicular intubation: an alternative stenting system for the management of congenital nasolacrimal duct obstructions.

Purpose: To present our experience with a "pushed" monocanalicular nasolacrimal intubation device in the management of nasolacrimal duct obstruction in children.

Methods: The cases of consecutive patients with nasolacrimal duct obstruction who were treated with primary probing and intubation with the Masterka were reviewed retrospectively. The Masterka includes a metal guide placed inside a silicone tube for "pushed" intubation as opposed to material attached at the distal end of the silicone for intranasal retrieval ("pulled" intubations).

Pushed monocanalicular intubation. Pitfalls, deleterious side effects, and complications.

Purpose: To present our experience with pushed monocanalicular nasolacrimal intubation in the management of 90 consecutive cases of nasolacrimal outflow obstruction.

Materials And Method: This paper reports a non-randomized study of 90 consecutive cases treated with a pushed Monoka intubation system (Masterka™). A metal guide is placed inside a silicone tube rather than being attached at the distal end of the tube, as done with traditional pulled intubations.

"Pushed" monocanalicular intubation in children under general anesthesia with spontaneous ventilation. A preliminary report.

Purpose: We studied the possibility of placing a new type of monocanalicular nasal intubation under general anesthesia with spontaneous mask ventilation in congenital nasolacrimal duct obstruction.

Patients And Method: This was a non-randomized study of consecutive cases using a monocanalicular stent called the "pushed Monoka". The benefits of anchoring with meatus fixation are similar to the original Monoka device, but the probe guide or introducer is inside the silicone tube.

Pushed monocanalicular intubation: a preliminary report.

Objective: To study the behavior of a "pushed" monocanalicular stent by means of nasal endoscopy.

Patients And Methods: Four children (six affected sides) with congenital nasolacrimal duct obstruction were treated with monocanalicular intubation with an anchoring plug. The children's mean age at the time of the operation was 33 months (range, 30-37 months).

Complications of standardized endonasal dacryocystorhinostomy with unciformectomy.

Purpose: To report the nature and frequency of complications occurring with endonasal dacryocystorhinostomy (DCR) based on routine unciformectomy.

Design: Prospective, noncomparative interventional consecutive case series study.

Participants: Endonasal DCR was performed on 300 patients with complete nasolacrimal stenosis.