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A randomized study comparing DCR with and without excision of the posterior mucosal flap
1Department of Ophthalmology, Faculty of Medicine, Ain Shams University, 30 Ibn Al-Nafees Street, District 6, Nassr City, Cairo 11371, Egypt. elwan@mailcity.com
Orbit (Amsterdam, Netherlands)
|May 22, 2003
Summary
Excision of the posterior sac mucosal flap during external dacryocystorhinostomy (DCR) may enhance surgical success rates. This technique showed a higher success rate compared to standard DCR without flap excision.
Area of Science:
- Ophthalmology
- Otorhinolaryngology
Background:
- External dacryocystorhinostomy (DCR) is a surgical procedure to restore lacrimal drainage.
- The role of excising the posterior sac mucosal flap in external DCR success is debated.
Purpose of the Study:
- To compare the success rates of external DCR with and without posterior sac mucosal flap excision.
- To evaluate the impact of posterior sac mucosal flap excision on surgical outcomes.
Main Methods:
- A prospective randomized study involving 80 patients undergoing external DCR.
- Group A (40 patients): DCR without posterior sac mucosal flap excision.
- Group B (40 patients): DCR with excision of the posterior sac mucosal flap and creation of a nasal mucosal flap.
Main Results:
- Group B (excision) demonstrated a 90% success rate (4/40 patients with tearing).
- Group A (no excision) showed an 85% success rate (6/40 patients with recurrent symptoms).
- Follow-up duration averaged 11 months for both groups.
Conclusions:
- Excision of the posterior sac mucosal flap may lead to improved success rates in external DCR.
- This surgical modification warrants consideration for optimizing external DCR outcomes.