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The Role of Retrograde CT Dacryocystography in Surgical Selection for Proximal Lacrimal Drainage System Obstruction and Efficacy Comparison of Two Lacrimal Bypass Procedures.

The Role of Retrograde CT Dacryocystography in Surgical Selection for Proximal Lacrimal Drainage System Obstruction and Efficacy Comparison of Two Lacrimal Bypass Procedures.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600121032
Enrollment
Unknown
Registered
2026-03-24
Start date
2025-09-01
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

lacrimal duct obstruction

Interventions

conjunctivodacryocystorhinostomy group:none
conjunctivodacryocystostomy group:none

Sponsors

Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Confirmed obstruction of the upper lacrimal passage 2. Preoperative retrograde CT dacryocystography has been completed 3. CDCS or CDCR surgery has been performed 4. The results of retrograde CT-DCG match the surgical procedure performed

Exclusion criteria

Exclusion criteria: 1. Combine other ocular or systemic lesions 2. The CT-DCG technique failed, and the contrast medium extravasated and did not enter the lacrimal passage

Design outcomes

Primary

MeasureTime frame
Patency of lacrimal duct;Degree of epiphora symptoms;—

Secondary

MeasureTime frame
Morphology of lacrimal duct anatomy;Lacrimal excretion function;—

Countries

China

Contacts

Public ContactRong Liu

Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology

rongr007@hust.edu.cn+86 138 8611 2262

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Apr 4, 2026