Related Experiment Video
Updated: Aug 23, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
Contact diode laser myringotomy and mitomycin C in children
1Department of Otolaryngology-Head and Neck Surgery, Division of Pediatric Otolaryngology, Vicenza Civil Hospital, Italy. rderedita@hotmail.com
Insights
Contact diode laser myringotomy (C-LAM) provides effective middle ear ventilation in children. However, topical mitomycin C did not extend ventilation duration in this study.
Area of Science:
- Otolaryngology
- Pediatric Otitis Media Research
Background:
- Otitis media with effusion (OME) is common in children, often requiring interventions for middle ear ventilation.
- Prolonged ventilation is crucial for resolving OME and preventing complications.
Purpose of the Study:
- To evaluate contact diode laser myringotomy (C-LAM) with topical mitomycin C for sustained middle ear ventilation in pediatric OME.
- To compare the efficacy of C-LAM with and without mitomycin C in maintaining ventilation.
Main Methods:
- Prospective study involving 15 children with OME at a pediatric tertiary care center.
- C-LAM performed on all ears; topical mitomycin C applied to the right tympanic membrane and saline to the left as a control.
- Outcomes assessed included healing, scarring, ear infections, and 2-year audiometric follow-up.
Main Results:
- No significant difference in tympanic membrane healing rates between the mitomycin C and saline groups (median healing between 3-4 months).
- All children achieved normal hearing thresholds at the 2-year follow-up.
- No significant complications were observed during the follow-up period.
Conclusions:
- C-LAM is an effective method for achieving medium-term middle ear ventilation in children with OME.
- Topical mitomycin C application prior to C-LAM did not prolong the ventilation patency rate.
- The procedure demonstrated a favorable safety profile with no significant complications at 2 years.
Objective:
To investigate the use of contact diode laser myringotomy (C-LAM), combined with topical mitomycin C, as an alternative method for prolonged middle ear ventilation in children with otitis media with effusion.
Study Design And Setting:
Prospective study at a tertiary care pediatric institution.
Methods:
Fifteen children enrolled in the study. Mitomycin C was applied to the intact tympanic membrane in the right ears, whereas saline on the left side was used for controls. C-LAM was then performed in all ears. Outcome measures included healing rate and scarring, ear infection, and long-term audiometric follow-up.
Results:
There was no significant difference in median healing rate. In each group, the median was between the third and fourth month. Normal hearing thresholds were obtained in all children at 2-year follow-up.
Conclusion:
C-LAM proved to be an effective method for medium-term ventilation, but topical mitomycin C before C-LAM did not prolong patency rate in our patients. No significant complication was encountered at 2-year follow-up.

