Topical mitomycin C application is effective in management of localized caustic esophageal stricture: A double-blinded, randomized, placebo-controlled trial

Abstract

BackgroundFrequent sessions of endoscopic dilatation are usually required in the management of benign esophageal strictures, especially caustic induced ones. Topical mitomycin C (MMC) has been recently used in the management of resistant strictures. This study evaluated the efficacy of MMC application in prevention of stricture recurrence after endoscopic dilatation. Patients and methodsThis double-blind, randomized, placebo-controlled trial included forty patients with caustic esophageal strictures dating from January 2008 to October 2010. Patients were randomized into 2 groups to undergo endoscopic dilatation with application of either MMC versus placebo on stricture site. Regular follow up and re-evaluation were done after 6months of management. The number of dilatation sessions needed for resolution of dysphagia in each group was our primary outcome. ResultsDuring the specified follow up period, 80 % of strictures in the MMC group got completely resolved compared to only 35% in the placebo group. The mean number of dilatation sessions needed in the MMC group was n=3.85±2.08 compared to n=6.9±2.12 in the placebo group which was statistically significant (p<0.001). ConclusionMitomycin C application significantly reduced the number of dilatation sessions needed to alleviate dysphagia in patients with caustic esophageal strictures.