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Short-term Effects of Mitomycin C Infiltration for Caustic Oesophageal Strictures in Children
Ahmed M K Wishahy1, Hamed Seleim2, Mohamad Qinawy1
1Department of Paediatric Surgery, Cairo University Specialized Paediatric Hospital, Cairo.
Insights
Endoscopic local infiltration of mitomycin C (MMC) effectively treats refractory postcorrosive esophageal strictures in children. This safe treatment significantly reduces dysphagia and improves dilation outcomes.
Area of Science:
- Pediatric Gastroenterology
- Endoscopic Therapeutics
- Otolaryngology
Background:
- Refractory postcorrosive esophageal strictures (OS) pose a significant challenge in pediatric care.
- Conventional treatments like dilation often require multiple sessions and may have limited long-term success.
Purpose of the Study:
- To evaluate the efficacy and safety of endoscopic local infiltration of mitomycin C (MMC) in children with refractory OS.
- To assess the impact of MMC on dysphagia score (DS) and periodic dilation index (PDI).
Main Methods:
- A prospective study included 17 children with refractory postcorrosive OS.
- Mitomycin C (MMC) was endoscopically infiltrated at the stricture site post-dilation.
- Dysphagia score (DS) and periodic dilation index (PDI) were the primary outcome measures.
Main Results:
- Median DS improved from 3 to 0 (P < 0.001), with 94% of patients becoming dysphagia-free at 6 months.
- Median PDI decreased from 1 to 0.75 (P = 0.052).
- Minor postdilation bleeding occurred in 7 patients, resolving spontaneously without transfusion; no infiltration-related complications were noted.
Conclusions:
- Endoscopic MMC infiltration is a safe and effective adjunct to esophageal dilation for pediatric refractory OS.
- This technique significantly improves swallowing function and reduces the need for repeated dilations.
Objectives:
The aim of this study was to investigate the efficacy and safety of endoscopic local infiltration of mitomycin C (MMC) after oesophageal dilation for children suffering from refractory postcorrosive oesophageal stricture (OS).
Methods:
Children referred to Cairo University Specialized Paediatric Hospital with refractory postcorrosive OS during the period from March 2016 to August 2017 were included in this study. MMC was infiltrated endoscopically at the stricture site by the end of the dilation session. The measured outcomes were dysphagia score (DS) and periodic dilation index (PDI).
Results:
During the inclusion period of the presented study, 17 children met the inclusion criteria. There were 7 boys and 10 girls. During the follow-up period, an average of 3.8 dilation sessions with MMC infiltration per case were performed, using a total dose of 1 mg each session. The median follow-up period was 9.5 months. The median DS improved from DS 3 before application of MMC to DS 0 at the last follow-up (P < 0.001). Additionally, the median PDI declined from 1 to 0.75 after MMC application (P = 0.052). Sixteen cases (94%) became dysphagia free after 6 months. Seven patients experienced postdilation minor bleeding that was spontaneously resolved, not triggering blood transfusion. There were no infiltration-related complications in the included series.
Conclusion:
Stricture-site MMC endoscopic infiltration by the end of a dilation session proved to be safe and effective in improving the DS and PDI.
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