Patient's question:
What are the treatment options for congenital microtia and ear canal atresia? Treatment history and effectiveness: None. What kind of help do you want: What are the treatment options for congenital microtia and ear canal atresia?Doctor's answer:
Congenital microtia and external auditory canal atresia are caused by the underdevelopment of the second or third pharyngeal arches or the second pharyngeal groove during embryonic growth and development. They may be accompanied by deformities of the eustachian tube, tympanic cavity, or mastoid due to the underdevelopment of the second pharyngeal pouch. Treatment options are primarily chosen based on clinical diagnostic classification.Type II: The auricle is smaller than normal, the external auditory canal and tympanic membrane are present, and hearing recovery is possible. However, it may not be fully resolved.
Type III: The auricle is deformed, the external auditory canal is atresic, the tympanic membrane and malleus handle have not developed, the incus body and malleus head are fused, and the stapes may be underdeveloped or normal. This presents as conductive hearing loss and is the most common type. It can be treated with external auditory canal reconstruction, tympanic membrane, and middle ear reconstruction, which can restore new hearing.