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Mitomycin-C in the postsurgical ear canal
Vishal Banthia1, Samuel H Selesnick
1Department of Otorhinolaryngology, Weill College of Medicine of Cornell University, New York, New York, 10021, USA.
Objective:
Our goal was to evaluate the use of topical mitomycin-C (MMC) in the prevention of scar tissue formation in the postsurgical external auditory canal (EAC). Study design and setting We conducted a prospective pilot study at a tertiary care institution.
Methods:
Six patients with recurrent postoperative granulation tissue after canaloplasty, tympanomastoidectomy, or lateral temporal bone resection were included. MMC (0.5 mg/mL) was applied topically for 5 minutes to the EAC/mastoid cavity.
Results:
Outcomes were measured at initial MMC application and 1 and 3 months thereafter using a visual analog scale score based on the degree of EAC occlusion by granulation tissue. Need for debridement of recurrent granulation tissue on follow-up was noted. Three (50%) patients had improved VAS 1 month after treatment. Two (33%) had improved visual analog scale score at 3 months. Five (83%) required at least one debridement procedure. Repeat MMC application was performed in 2 patients.
Conclusion:
Topical MMC was ineffective in preventing scar formation in the postsurgical EAC.
Insights
Topical mitomycin-C (MMC) did not effectively prevent scar tissue formation in the postsurgical external auditory canal (EAC). Most patients required debridement, indicating limited success in preventing granulation tissue post-surgery.
Area of Science:
- Otolaryngology
- Surgical Innovation
- Wound Healing
Background:
- Scar tissue formation and granulation tissue in the postsurgical external auditory canal (EAC) can lead to complications.
- Effective prevention strategies are crucial for successful surgical outcomes in EAC procedures.
Purpose of the Study:
- To evaluate the efficacy of topical mitomycin-C (MMC) in preventing scar tissue and granulation tissue formation in the postsurgical EAC.
Main Methods:
- A prospective pilot study was conducted involving six patients with recurrent postoperative granulation tissue.
- Topical mitomycin-C (0.5 mg/mL) was applied to the EAC/mastoid cavity for 5 minutes.
- Outcomes were assessed using a visual analog scale (VAS) for EAC occlusion and the need for debridement at 1 and 3 months post-application.
Main Results:
- Fifty percent of patients showed improved VAS scores at 1 month, and 33% at 3 months.
- However, 83% of patients required at least one debridement procedure for recurrent granulation tissue.
- Two patients underwent repeat MMC application.
Conclusions:
- Topical mitomycin-C was ineffective in preventing scar tissue formation in the postsurgical EAC.
- Further research may be needed to explore alternative or adjunctive treatments for managing postsurgical EAC scarring.
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