This congenital condition prevents the external ear from completely forming, either through deformities or by not forming at all.
Microtia mostly affects newborns and its main cause is associated with a combination of inherited traits and environmental factors that make the ear malform. It is usually diagnosed along with aural atresia, which is the absence of the external ear canal. While this condition can occur in both ears, according to a study conducted by the Institute of Human Genetics at Pontifical Xavierian University in Bogota, 90% of cases only affect one ear.
Some aesthetic treatment alternatives include prostheses and reconstructive surgery, as well as auditory stimulation by bone conduction to treat hearing loss. Non-surgical options include using headbands or elastic bands with ear sound processors. Most importantly, a specialist should be seen in order to determine the degree of microtia and the appropriate procedure for each patient.
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