Abstract
The purpose of this study is to evaluate whether the addition of topical mitomycin-C (MMC) application to the wound site after endoscopic treatment of laryngotracheal stenosis (LTS) resulted in measurable improvement in clinical outcomes. A retrospective chart review of patients with LTS treated by the senior author over a 6-year period was performed. The treatment groups were stratified into two main categories: 1) endoscopic treatment alone and 2) endoscopic treatment + topical MMC. The "symptom-free" interval was determined (in months) for each subject using a two-tailed t test for statistical analysis of the control/study groups. Sixty-seven procedures were performed in 36 patients with LTS with a mean of 1.86 surgical treatments per patient. The mean duration of the symptom-free interval after endoscopic treatment for LTS was 4.9 months in the endoscopic-only treatment group and 23.2 months in the endoscopic group receiving topical MMC. The symptom-free interval observed in the MMC group was significantly longer than the control subjects (P = 1 x 10). The results of this study suggest that MMC is an effective adjuvant in the treatment of LTS. The results of this study provide strong supporting evidence that topical MMC is an effective adjuvant in the treatment of LTS.
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