Background and Objectives: Endoscopic dacryocystorhinostomy (DCR) has became a common procedure in the otolaryngologic field thanks to the improvement of endoscope. The endoscopic procedure has several advantages, such as better
hemostasis,
problem. So we used mitomycin C in six cases for analyzing its effect of preventing postoperative obstruction. Materials and Methods: We retrospectively reviewed 40 cases of endoscopic DCR performed between Mar., 1997 and Jan., 1998 to
analyze
preoperative causes of epiphora, postoperative complications, subjective postoperative improvement and overall success rate. Results: The total success rate was 80%. The most common cause of failure was an obstruction of the newly created
stoma
with granulation tissue. However, we found better success rate (83%) in six cases where mitomycin C were used to prevent obstruction of stoma. Conclusion: Endoscopic DCR is considered to e the procedure with more advantages compared to the
esternal approach, and mitomycin C is a valuable choice of antimetabolite to prevent postoperative granuloma formation.
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