Self-retaining Bicanalicular Intubation Stent Versus Bicanalicular Silicone Tube for Management of Canalicular Obstruction

February 22, 2021 updated by: Zamzam Mohamed alham khalil, Minia University
The aim of the study is to evaluate outcomes of the use of self_retaining intubation set versus bicanalicular silicone tube in management of canalicular obstruction

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Epiphora is a condition due to obstruction of lacrimal passages either proximal or distal. Canalicular obstruction is a condition in which the lacrimal canaliculi are narrowed or occluded. Canalicular obstructions can be anatomically classified as proximal type in which the obstruction found at the initial 2-3 mm from the punctal opening while in mid canalicular type obstruction at 3-8 mm from the punctum and the distal type in which a membrane of the common canaliculs to the lacrimal sac. Canalicular obstruction can be acquired or congenital. Acquired canalicular obstruction may result from infectious and inflammatory eyelid disorders, ocular surface disease, systemic or topical medications, irradation, iatrogenic, intrinsic cannalicular tumors and trauma. The correct chioce of the techinque for given canalicular obstruction and therefore the long-term success depends on the site and degree of the obstruction, incomplete obstruction or stenosis can be treated with canalicular stenting. Proximal and mid canalicular obstructions need reconstruction by excising the focal canaliculus obstruction near the punctum and the cut ends of the canaliculus can be anastomosed over a stent. Dacryocystorhinostomy with retrograde intubation of the lacrimal system has shown some success may avoid the need for a Jones tube. Patients with symptomatic distal canalicular obstruction should undergo timely insertion of a bicanalicular silicon stent to prevent permanent and complete closure of the canaliculi. There are several modalities of canalicular intubation for the patients with distal canalicular obstruction. In patients with nasolacrimal duct and canalicular obstruction ,preferred procedures include dacryocystorhinstomy with bicanalicular or monocanalicular intubation .However,in patients with canalicular obstruction without nasolacrimal duct obstruction use bicanalicuar silicone intubation. In 2014 P.Bige' designed self-retaining bicanaliculs intubation setII(SRSII) which is the latest innovation in the field as these silicone stent segments traverse both canaliculi till the lacrimal sac. In which each end of this semicircular device has 2 stout angulated wings/flanges which pose no resistance while proceeding forward into the canaliculus, but once they get into open cavity (lacrimal sac), the flanges open up and give resistance to their removal against the common canalicular opening.

Study Type

Interventional

Enrollment (Anticipated)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years to 60 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with epiphora due to distal canalicular obstruction.

Exclusion Criteria: patients with epiphora due to

  • Punctual stenosis
  • lid malposition
  • Intra-operative nasolacrimal duct obstruction
  • previous eyelid or lacrimal drainage surgery
  • untreated conjunctivitis, blepharitis. Dacrocystitis Proximal and mid canalicular obstruction.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Canalicular obstruction
Device: Self-retaining bicanalicular intubation stent
self-retaining bicanaliculs intubation setII(SRSII) which is the latest innovation in the field as these silicone stent segments traverse both canaliculi till the lacrimal sac. In which each end of this semicircular device has 2 stout angulated wings/flanges which pose no resistance while proceeding forward into the canaliculus, but once they get into open cavity (lacrimal sac), the flanges open up and give resistance to their removal against the common canalicular opening

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Comparison of SRSll and bicanalicular silicone tube in management of canalicular obstruction
Time Frame: Baseline
compare improvement of epiphora according to Munk scale for epiphora grading Grade 0 No epiphora Grade 1 Epiphora requiring dabbing less than twice a day Grade 2 Epiphora requiring dabbing 2-4 times a day Grade 3 Epiphora requiring dabbing 5-10 times a day Grade 4 Epiphora requiring dabbing more than 10 times a day Grade 5 Constant epiphora And fluorescein dye disappearance test was graded according to Ozgur et al., scale according the time of dye clearance Grade 1 <3 minutes Grade 2 3-5 minutes Grade 3 >5 minutes
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Minia University

Investigators

  • Study Director: Ahmed M Elshafei, Minia University, Egypt
  • Study Director: Raafat M Abdelrahman, Minia University, Egypt
  • Study Director: Amr A Mohrmed, I, Minia University, Egypt

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

February 1, 2021

Primary Completion (Anticipated)

June 1, 2021

Study Completion (Anticipated)

July 1, 2021

Study Registration Dates

First Submitted

January 5, 2021

First Submitted That Met QC Criteria

January 9, 2021

First Posted (Actual)

January 12, 2021

Study Record Updates

Last Update Posted (Actual)

February 24, 2021

Last Update Submitted That Met QC Criteria

February 22, 2021

Last Verified

December 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Bicanalicular intubation

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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