Nigerian journal of medicine : journal of the National Association of Resident Doctors of Nigeria · 2011
Audiometric findings in Waardenburg's syndrome amongst the institutionalised deaf/blind in Kaduna-Nigeria.
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Ahmed A O, Samaila E, Abah E R, Oladigbolu K K, Merali H, Abubakar A
Аннотация
INTRODUCTION: Waardenburg's syndrome (WS) is a rare inherited disorder of congenital hearing loss and Pigmentary disturbances of the eyes, hair, skin and neural crest derivatives.
MATERIALS & METHODS: 620 students in a deaf/blind school were examined and four had WS with a frequency of 0.65%. 2 males and 2 females with WS and age ranges between 10-19yrs {mean 15.75yrs.} All 4 subjects had complete blue irides, white forelock and sensorineural hearing loss, and thus met the diagnostic criteria. They were then subjected to Audiometric assessment.
RESULTS: Otoscopy was essentially normal but Audiometry revealed sensorineural hearing loss [SNHL] in all the subjects ranging from severe to profound with one subject being stone deaf.
CONCLUSION: WS is a rare disorder in our environment although it may be under reported. Two ofthe subjects benefited from amplification and were given hearing Aids. Provision of early amplification cannot be over emphasized.
MATERIALS & METHODS: 620 students in a deaf/blind school were examined and four had WS with a frequency of 0.65%. 2 males and 2 females with WS and age ranges between 10-19yrs {mean 15.75yrs.} All 4 subjects had complete blue irides, white forelock and sensorineural hearing loss, and thus met the diagnostic criteria. They were then subjected to Audiometric assessment.
RESULTS: Otoscopy was essentially normal but Audiometry revealed sensorineural hearing loss [SNHL] in all the subjects ranging from severe to profound with one subject being stone deaf.
CONCLUSION: WS is a rare disorder in our environment although it may be under reported. Two ofthe subjects benefited from amplification and were given hearing Aids. Provision of early amplification cannot be over emphasized.