A Comparative Study of Two Endoscopic Operations for Lacrimal Duct Obstruction (ACSOTEOFLDO)

Sun Yat-sen University

Status and phase: Completed; Phase 2; Phase 1

Conditions: Lacrimal Duct Obstruction

Treatments: Procedure: Recessive Spherical Headed Silicone Intubation; Procedure: Dacryocystorhinostomy

Study type: Interventional

Funder types: Other

Identifiers

NCT02636257

SYSU-5010

Details and patient eligibility

About

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

Full description

Lacrimal duct obstruction is common among patients with epiphora,which is seriously affect the quality of life. The treatment principle is to restore or rebuild the lacrimal duct drainage channel. The classic operation type is dacryocystorhinostomy(DCR), which is complex for face-section particularly. However, with the development of endoscopy, the investigators prefer to the silicone nasolacrimal intubation under nasal endoscopy, which is more simple and efficient. With endoscopy, the investigators can see anatomical structures clearly and then can perform the operation much more perfectly.Compare to the classic one called DCR, its short and long term therapeutic effects are equal and even better.Therefore,the latter type does do good to both doctors and patients.

Enrollment: 50 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Clinical diagnosis of Nasolacrimal Duct Obstruction based on a clinical of epiphora and purulent secretion, another punctiform orifices with reflux in subsequent flushing in lacrimal passage irrigation;
• Must be able to withstand surgery
• At least 18 years old
• NO lacrimal tumor and acute inflammation
• Nasolacrimal duct obstruction in digital subtraction dacryocystography
• A sufficient level of education to understand study procedures and be able to communicate with site personnel and adhere to the follow-up;
• Accepted informed consent verbally and in writing

Exclusion criteria

• The Poor Health
• Be allergic to anesthetics
• Lacrimal duct abnormalities
• Lacrimal tumor and acute inflammation
• Children
• The same Surgery failure before

Exit Criteria

• Postoperative infection and persistent inflammation
• Operation failure.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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50 participants in 2 patient groups

Recessive Spherical Headed Silicone Intubation

Experimental group

Description:

The silicone nasolacrimal intubation under nasal endoscopy can restore natural drainage pathway in tears and as an out-patient surgery, it is more simple,cheap and mini-invasive.Recessive Spherical Headed Silicone Intubation is safe,convenient and almost unpainful for no trauma.It has no facial scar and no damage for structure and function of lacrimal duct.Besides,silica gel is non-toxic and nonirritating.Nasal endoscopy handed by otorhinolaryngologist helps intraoperative visualization about anatomy of the nasal cavity,understanding and management of congenital nasolacrimal duct obstruction and is the only method that confirms the correct anatomic position of the catheterization and in real time,avoiding traditionally the blind raking-out wire by the ophthalmologist alone.Compare to the classic DCR,its short therapeutic effects are equal but more convenient and fewer time and money-cost.

Treatment:

Procedure: Recessive Spherical Headed Silicone Intubation

Dacryocystorhinostomy

Other group

Description:

Nasolacrimal duct obstruction is common among patients with epiphora,which is seriously affect the quality of life. The treatment principle is to restore or rebuild the lacrimal duct drainage channel. The classic operation type is dacryocystorhinostomy(DCR), which is complex for face-section particularly.After surgery the lacrimal passage can't siphon the tear out physically any more so that it will effect the patients' life.Besides,the operating time,bleeding volume,hospitalization time and total cost for the surgery is higher.

Treatment:

Procedure: Dacryocystorhinostomy