Congenital aural atresia.
Congenital aural atresia is an unusual anomaly that is difficult to surgically correct. Altered anatomical landmarks, especially of the facial nerve, and variability of the middle ear configuration, contribute to the difficulty of the procedure. In addition, the unpredictable healing process can make for variable outcomes. Choosing appropriate candidates for surgical repair minimizes risks and enhances patient care. This report reviews the outcome with evaluation and management of 17 patients with congenital aural atresia. Surgical techniques for repair, including use of a hydroxylapatite canal wall prosthesis to help reconstruct the posterior canal wall are described. As expected, patients with less severe anomalies had better postoperative hearing results. Lateralized tympanic membrane, canal stenosis, and meatal narrowing were complications encountered. The anatomy and embryology of the ear and facial nerve are reviewed to assist surgeons in safe, successful surgery.
Bauer
G P
GP
Dept. of Otolaryngology--Head and Neck Surgery, Northwestern University Medical School, Chicago.
Wiet
R J
RJ
Zappia
J J
JJ
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D017886:Durapatite; D004424:Ear Canal / Q000002:abnormalities* / Q000601:surgery; D005260:Female; D006309:Hearing; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D019736:Prostheses and Implants; D013997:Time Factors
D017886:Durapatite