Abstract
Many surgical advancement paved to surgical success in endonasal endoscopic dacryocystorhinostomy. Mitomycin C is a systemic chemotherapeutic agent derived from Streptomyces caespitosus that inhibits the synthesis of DNA, cellular RNA, and protein by inhibiting the synthesis of collagen by fibroblasts. The objective of the study was to evaluate the advantage of mitomycin C in primary endoscopic endonasal dacryocystorhinostomy without stenting. Randomised case control design. Tertiary academic centre in central India. 112 patients who presented with epiphora and diagnosed as chronic dacryocystitis after syringing by ophthalmologist, were selected and randomised into two groups with or without mitomycin C intraoperative application. 112 eyes underwent endoscopic-dacryocystorhinostomy. Additional surgeries were done according to necessity. Mitomycin C was applied in concentration of 0.4mg/dl for 5min. Patients were followed up on OPD-basis at the end of 1st week, 1st month, 3rd month and over phone call at end of 1year. Symptomatic improvement assessed by verbal enquiry and clinically by syringing by ophthalmologist. 8 patients underwent septal surgery in case group and 4 in control group along with 1 concha bullosa correction in the case group (p < 0.05). Nil intraoperative complications (p < 0.05) and nil postoperative complication noted (p < 0.05). Functional and anatomical patency found to be 100% at the end of 1st week in both groups, 96.5% at 3rd month in case group and 96.4% and 92.9% at 1month and 3month respectively in control group. Nasal endoscopy of all surgical failures showed restenosis in both case group and control group except 1 patient with granulation in control group. Eventhough intraoperative mitomycin C application is effective in increasing the success rate of endonasal DCR surgery in standard nasolacrimal duct obstruction, and with no significant complications from its use, the study did not show added benefit in the primary endoscopic endoscopic dacryocystorhinostomy without stenting.
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