Congenital ossicular abnormalities: a review of 68 cases.
Sixty-eight cases of congenital conductive hearing loss due to ossicular abnormalities were reviewed. The clinical and surgical details of each case were documented, and a classification was drawn up on the basis of the abnormalities encountered. Sixty-six percent of the cases were documented as middle ear anomalies in the absence of any other evidence of congenital disease. Improved hearing was obtained in 47% of those cases where corrective surgery was undertaken. Treatment and results are reviewed. The pattern of ossicular abnormality encountered in this series suggests a variable origin of the incus, either from first branchial arch alone or from both first and second branchial arches.
Cousins
V C
VC
Institute of Laryngology and Otology London.
Milton
C M
CM
D000015:Abnormalities, Multiple; D004429:Ear Ossicles / Q000002:abnormalities*; D004431:Ear, External / Q000002:abnormalities; D005260:Female; D006314:Hearing Loss, Conductive / Q000151:congenital / Q000209:etiology; D006801:Humans; D007188:Incus / Q000002:abnormalities; D008297:Male; D008307:Malleus / Q000002:abnormalities; D013199:Stapes / Q000002:abnormalities