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BACKGROUND:  Caustic ingestion and development of esophageal strictures are recognized major public health problems in childhood. Different therapeutic methods have been proposed in the management of such strictures.  OBJECTIVE:  To evaluate efficacy and risk of endoscopic topical application of mitomycin C in the treatment of caustic esophageal strictures.  METHODS:  We searched MEDLINE, EMBASE, Central Cochrane, and LILACS databases. The outcomes evaluated were dysphagia resolution rate, number of dilations performed in resolved cases, and the number of dilations performed in all patients.  RESULTS:  Three randomized clinical trials were included for final analysis with a total of 190 patients. Topical mitomycin C application group showed a significant increase in dysphagia resolution rate, corresponding to a 42% higher dysphagia resolution as compared to endoscopic dilation alone, with statistical significance between the two groups (RD: 0.42 - [CI: 0.29-0.56]; P-value &lt;0.00001). The mean number of dilations performed in resolved cases were significantly less in the topical mitomycin C application group, compared to endoscopic dilations alone, with statistical significance between the two groups (MD: 2.84 [CI: 1.98-3.69]; P-value &lt;0.00001). When comparing the number of dilations in all patients, there was no statistical difference between the two groups (MD: 1.46 [CI: -1.53-4.44]; P-value =0.34).  CONCLUSION:  Application of topical mitomycin C with endoscopic dilations in caustic esophageal strictures was more effective in dysphagia resolution than endoscopic therapy alone in the pediatric population. Moreover, topical mitomycin C application also reduced the number of dilation sessions needed to alleviate dysphagia without rising morbidity.

arquivos de gastroenterologia

EFFICACY OF ENDOSCOPIC TOPICAL MITOMYCIN C APPLICATION IN CAUSTIC ESOPHAGEAL STRICTURES IN THE PEDIATRIC POPULATION: A SYSTEMATIC REVIEW AND META-ANALYSIS OF RANDOMIZED CONTROLLED TRIALS