Efficacy of mitomycin c in endoscopic dacryocystorhinostomy
Keywords:Chronic dacryocystitis, Nasolacrimal duct obstruction, Dacryocystorhinostomy, Endoscopic endonasal dacryocystorhinostomy, Mitomycin C
Background: Endoscopic dacryocystorhinostomy is a procedure done to drain the lacrimal sac due to post saccular lacrimal obstruction. The most common cause of failure of dacryocystorhinostomy is blockage of ostium created in lacrimal sac. Various methods are employed to prevent the blockage such as stenting, mitomycin C and steroidal nasal sprays. In this study we evaluated the efficacy of mitomycin C in reducing the stomal closure following dacryocystorhinostomy.
Methods: Fifty patients who were diagnosed with chronic dacryocystitis due to nasolacrimal duct obstruction were chosen for the study. They were randomly divided in to two groups. In group I 25 patients under went endoscopic dacryocystorhinostomy with intraoperative mitomycin C application and in group II 25 patients underwent endoscopic dacryocystorhinostomy without application of mitomycin C. Patients were followed up at the end of one week, three weeks, three months and six months. Surgical success was evaluated objectively at the end of six months.
Results: The success rate of endoscopic dacryocystorhinostomy with use of mitomycin c was 86% in group where mitomycin c was used and 62% in group where mitomycin c was not used.
Conclusions: Mitomycin C is a safe drug which can keep the stoma created patent and reduces the chance of recurrence following endoscopic dacryocystorhinostomy.
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