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It is unilateral in above 90% of cases, and tends to involve the right ear more commonly, and also more common in males. Microtia describes the outer ear, and is often associated with absence of the ear canal (called canal atresia or aural atresia ).
1 Μαρ 2024 · Ear microtia is often unilateral and creates a noticeable asymmetry. This condition is often associated with congenital syndromes and is thought to be caused by vascular insults or exposure to medications during pregnancy. External ear malformation or absence can cause conductive hearing loss.
Microtia can be unilateral (one side only) or bilateral (affecting both sides). Microtia occurs in 1 out of about 8,000–10,000 births. In unilateral microtia, the right ear is most commonly affected.
Types and Grades of Microtia. This condition is commonly unilateral, which means it affects just one ear. In some cases, the condition is bilateral, impacting both ears. There are four types of microtia: Grade 1: In this, the mildest form, the ear is smaller but in shape.
Unilateral microtia. In unilateral cases, children generally retain full hearing in the unaffected ear, while still retaining some hearing on the affected side. Even if the ear canal is closed, sound can be absorbed into the still-functioning inner ear.
Microtia is a congenital condition characterized by structural abnormalities of your outer ear. It’s usually diagnosed at birth, and treatment depends on the type or severity of the condition. If your child develops self-esteem issues as the result of microtia, there are resources that can help.
1 Δεκ 2021 · Current developments include expanding options for hearing management, changing approaches to timing of atresiaplasty, utilization of 3D printed models, and focus on patient and family experience to improve reconstructive outcomes.