The aim of the study was to report otologic and audiologic characteristics in a group of children with Turner syndrome (TS) and correlate these findings to karyotype. Additionally, we give recommendations for the otologic care of these children. Sixty children (age 1.7-21.2 years) were included in this retrospective study. Medical history and karyotypes were recorded and otologic and audiologic evaluation was performed. A history of recurrent otitis media was reported in 41/60 (68%) children and 3/60 (5%) had suffered from cholesteatoma. Audiometric data in 56 children revealed that normal hearing was only present in 33/112 (29%) ears. All other ears 79/112 (71%) were classified in five different audiometric categories for hearing loss. Hearing thresholds in general appeared to be about 10-11 dB worse in children with a monosomy 45,X or isochromosome (both have a total deletion of the short (p) arm of the X-chromosome) compared to those having a mosaicism or structural anomaly (partial deletion, or total deletion in only a few cells). Our findings support the hypothesis that hearing can be affected by loss of the p-arm of the X-chromosome. It is for the first time that a relation between hearing problems and karyotype is statistically confirmed in a large group of children with TS.
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