A comparative study of endoscopic endonasal dacryocystorhinostomy with and without intraoperative mitomycin-C application

Abstract

Aim: To evaluate the role of intraoperative mitomycin-C application in primary endoscopic endonasal dacryocystorhinostomy (DCR) and compare the results with conventional endoscopic endonasal DCR. Study design: Prospective comparative interventional study. Setting: Tertiary referral hospital. Materials and methods: Fifty patients in the age group of 16 to 50 years presenting with symptoms and signs suggestive of nasolacrimal duct blockage refractory to conventional medical treatment were included in the study. They were assigned randomly into two groups of 25 patients each. Group A patients underwent endoscopic endonasal DCR followed by application of mitomycin-C. Group B patients underwent endoscopic endonasal DCR without application of mitomycin-C. The two groups were compared with regard to success rate and complications. The main outcome measures for success were the resolution of epiphora and patency with lacrimal irrigation. Results: After 1 year, 24 patients (96%) in each group had complete relief from their symptoms while one patient (4%) had no relief. Syringing was patent in 24 patients (96%) in each group and blocked in one patient (4%) after 1 year of surgery. Conclusion: The present study did not show any additional benefit of using mitomycin-C at the stoma site after primary endoscopic endonasal DCR in terms of success rate.