Abstract
Objective: The aim of this study was to revalidate and reproduce a chronic tympanic membrane perforation animal model. Study design: Prospective, animal study. Methods: Eight female chinchillas underwent bilateral thermal myringotomy. The edges of the perforation were folded inward using microflaps. The perforations were followed over time to monitor the course of closure. Results: Two animals were excluded from the study because of ear infection. None of the other tympanic membrane perforations remained open. The closing time varied from 4 to 6 weeks. Conclusions: Our findings demonstrate that the thermal myringotomy combined with infolding technique is not a reliable and consistent method to create a chronic tympanic membrane perforation. The closing time is shorter than expected and varies among the study subjects. There is a clear need for developing a reliable chronic tympanic membrane perforation model.
Original language | English (US) |
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Pages (from-to) | 1250-1252 |
Number of pages | 3 |
Journal | International journal of pediatric otorhinolaryngology |
Volume | 78 |
Issue number | 8 |
DOIs | |
State | Published - Aug 2014 |
Externally published | Yes |
Keywords
- Animal model
- Chronic
- Tympanic membrane perforation
ASJC Scopus subject areas
- Pediatrics, Perinatology, and Child Health
- Otorhinolaryngology