What is the revision rate after atresia repair surgery?

Approximately 10% of the time, a second surgical procedure is required. This revision surgery may come many years after the first surgery. The most common cause of revision surgery is canal stenosis, followed by lateralization of the ear drum and fibrous connections between the stapes and incus bones. Lateralization of the ear drum can occur when children grow, which causes the ear canal to elongate. In some children this causes a pulling away of the drum from the bones. In other children, scar tissue shrinks the skin of the canal and pulls the eardrum laterally. As discussed above, malformed ossicles may result in a two-stage atresia repair being planned.

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