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A Comparative Study of Two Endoscopic Operations for Lacrimal Duct Obstruction

NCT02636257 · Status: COMPLETED · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2017-10-11

No results posted yet for this study

Summary

To compare the clinical effects between the silicone nasolacrimal intubation under nasoendoscopy and dacryocystorhinostomy on patients with lacrimal duct obstruction.

Conditions

  • Lacrimal Duct Obstruction

Interventions

PROCEDURE

Recessive Spherical Headed Silicone Intubation

Local anesthesia,regular disinfection, spread sterile towels, exposure operative side.2%lidocaine infiltration anesthesia to inferior orbital nerves, lacrimal punctum and lacrimal sac. Nasal cavity was packed with gauze soaked in 2%ephedrine with 1%tetracaine 15 minutes before procedure.A routine silicone tube of spherical intubation was performed. Dilatated lacrimal point to the end, then inserted the probe with line from lacrimal punctum to inferior meatus through nasolacrimal duct.Cut the line and flush the lacrimal duct physiological saline in 5 mL, flowing the line into the inferior meatus, then suctioned out the line with nasal endoscopy and extracted the probe and dilatated the lacrimal duct again. Insert the spherical silicone tube from lacrimal point to the lacrimal sac, reversing to vertical direction to ensure the tube is inserted into the nasolacrimal duct, then catch the above line but cut short the follow one and fix.Unobstructed lacrimal irrigation.

PROCEDURE

Dacryocystorhinostomy

Surgery was performed under local anesthesia.Incision was taken over anterior lacrimal crest.Medial palpebral ligament was identified.Orbicularis was separated.Reflection of periosteum and dissection of lacrimal sac from lacrimal fossa was done.Sac was excised to make'H'shaped anterior and posterior flaps. Bony osteum of sufficient size was made with bone punch.Nasal mucosa was cut to make anterior and posterior flaps.Subsequently anterior to anterior and posterior to posterior flaps were sutured.

Sponsors & Collaborators

  • Third Affiliated Hospital, Sun Yat-Sen University

    lead OTHER

Principal Investigators

  • Yang Qintai, director · Sun Yat Sen Univ, Affiliated Hosp 3, Dept Otorhinolaryngol Head & Neck Surg, Guangzhou 510630, Guangdong, Peoples R China.

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2015-07-31
Primary Completion
2017-01-31
Completion
2017-01-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02636257 on ClinicalTrials.gov