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Topical mitomycin C with dilation increases dysphagia resolution odds by 7.82 in pediatric esophageal stricturesAdding mitomycin C helps children with caustic esophageal strictures

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Key Takeaway
Consider adding topical mitomycin C to dilation to improve dysphagia resolution and reduce dilation sessions in children.

This meta-analysis evaluates the efficacy of adding topical mitomycin C (MMC) to dilation for children with caustic esophageal stricture. The analysis pooled data from 3 pediatric randomized controlled trials involving 221 children. The primary finding indicates that the combination of dilation and topical MMC leads to significantly higher odds of dysphagia resolution (OR 7.82; 95% CI 4.17-14.65) compared to dilation alone. Additionally, patients receiving topical MMC required fewer dilation sessions (MD -3.01; 95% CI -3.30 to -2.73).

The study notes that no MMC-attributable adverse events occurred across 110 pooled MMC exposures. The results remained robust in sensitivity analysis (OR 6.86; 95% CI 3.34-14.10). However, the authors note that the pooled analysis only included 3 pediatric randomized controlled trials, and one eligible adult trial was reported narratively and not included in the pooled data.

Clinically, the addition of topical MMC may reduce the treatment burden and improve outcomes for pediatric patients with caustic esophageal stricture. However, the authors emphasize that multicentre randomized controlled trials with longer follow-up periods are still required to confirm these findings and establish long-term outcomes.

How this fits prior evidence

This meta-analysis addresses a gap in the management of caustic esophageal stricture in children. While prior coverage noted that mitomycin C is used in pediatric glaucoma to reduce intraocular pressure, this study specifically addresses the use of mitomycin C as an adjunct to dilation for esophageal strictures. The finding of higher odds of dysphagia resolution (OR 7.82) and fewer dilation sessions (MD -3.01) supports the utility of mitomycin C in pediatric caustic injury management.

Children with caustic esophageal stricture face a difficult road after suffering chemical burns to their esophagus. This injury causes scarring that narrows the throat, making it hard or impossible to swallow. Doctors often use a procedure called dilation to stretch the opening, but the process can be repetitive and taxing for a young patient.

A review of clinical trials involving 221 children found that adding a topical medication called mitomycin C (MMC) to the dilation process made a significant difference. Children who received both the dilation and the MMC were much more likely to see their swallowing difficulties resolve. They also required fewer total dilation sessions to reach that goal.

Safety data from 110 pooled exposures showed no adverse events linked to the mitomycin C. While these results are promising, the researchers noted that the analysis only included three pediatric trials. More large, multi-center trials with longer follow-up periods are still needed to confirm these findings over time.

What this means for you:
Adding mitomycin C to dilation can help children with esophageal strictures swallow better with fewer procedures.

Common questions

How does mitomycin C help children with esophageal strictures?

When added to a dilation procedure, mitomycin C significantly increases the odds of resolving dysphagia, which is the medical term for difficulty swallowing. The analysis showed a much higher likelihood of success compared to dilation alone. It also helped reduce the total number of dilation sessions a child needed to complete.

Is it safe to use mitomycin C for this condition?

The study reported no adverse events specifically linked to mitomycin C across 110 pooled exposures. While the data suggests it is well-tolerated in this context, you should always discuss the specific risks and benefits of any medication with a pediatric specialist.

How many dilation sessions were avoided with this treatment?

The data showed that children who received mitomycin C along with dilation required fewer sessions on average. Specifically, the results showed a reduction of about 3 dilation sessions compared to those who received dilation alone.

Study Details

Study typeMeta analysis
Sample sizen = 221
EvidenceLevel 1
PublishedOct 2026
View Original Abstract ↓
PURPOSE: Caustic esophageal stricture is a major cause of pediatric dysphagia requiring repeated dilation. We assessed whether adjunctive topical mitomycin C (MMC) improves dysphagia resolution and reduces dilation sessions in children. METHODS: We searched PubMed, Embase, and Cochrane CENTRAL (inception through May 17, 2026) for randomized controlled trials comparing dilation plus topical MMC with dilation alone in children with caustic esophageal stricture. Risk of bias was assessed with RoB 2 and certainty with GRADE. Random-effects meta-analyses were performed; the single eligible adult RCT was reported narratively. RESULTS: Three pediatric RCTs (221 patients; 110 MMC, 111 control) were pooled. MMC was associated with higher odds of dysphagia resolution (OR 7.82; 95% CI 4.17-14.65; I²=0%), and fewer dilation sessions (MD - 3.01; 95% CI - 3.30 to - 2.73; k = 2; I²=0%). No MMC-attributable adverse events occurred across 110 pooled MMC exposures, or 128 including non-pooled controlled evidence. Effects were robust in sensitivity analysis (OR 6.86; 95% CI 3.34-14.10). CONCLUSION: In pediatric caustic esophageal stricture, adjunctive topical MMC improves dysphagia resolution and reduces dilation burden. Multicentre RCTs with longer follow-up remain needed. PROSPERO REGISTRATION: CRD420261351544.
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