NCT02081781

The Factors That Affected the Outcome of Treatment of Congenital Nasolacrimal Duct Obstruction

Case Control Study of the Factors That Affected the Outcome of Treatment of Congenital Nasolacrimal Duct Obstruction

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 800 (actual)
• Sponsor: Cathay General Hospital · Academic / Other
• Sex: All
• Age: 1 Week – 5 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study was to investigate various potential factors that affected the outcome of treatment of congenital nasolacrimal duct obstruction.

Detailed description

Congenital nasolacrimal duct obstruction is a common condition during the first few years of childhood. Most cases may resolve spontaneously, but the remaining children whose blockage does not resolve may require primary probing. Controversy remains regarding the optimal timing of the probing procedure. Another controversy is related to the setting of surgery. Therefore, we try to investigate the factors that affected the outcome of treatment of congenital nasolacrimal duct obstruction under the same surgical doctor during the past 13 years in our hospital.

Conditions

• Congenital Nasolacrimal Duct Obstruction

Interventions

Type	Name	Description
PROCEDURE	Probing	A punctal dilator was used for dilating the punctum. The nasolacrimal system was irrigated through either the lower or upper punctum with a hollow 23-gauge irrigating cannula attached to a syringe. A #0 (or #00) Bowman probe was passed through either the lower or upper canaliculus into the lacrimal sac and then directed downward through the nasolacrimal duct into nasal cavity. A "Hard" resistance could be felt as the probe touched the end of the nasolacrimal duct. A "Pop" tactile sensation might be noted while the probe passing through an obstruction at the valve of Hasner.

Timeline

• Start date: 2014-02-01
• Primary completion: 2014-03-01
• Completion: 2014-03-01
• First posted: 2014-03-07
• Last updated: 2014-03-07

Locations

1 site across 1 country: Taiwan