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Sensorineural hearing loss associated with hypoparathyroidism
Author(s) -
Ikeda Katsuhisa,
Kobayashi Toshimitsu,
Kusakari Jun,
Takasaka Tomonori,
Yumita Shigeru,
Furukawa Yohtaro
Publication year - 1987
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-198709000-00014
Subject(s) - audiology , medicine , sensorineural hearing loss , inner ear , audiometry , hearing loss , pure tone audiometry , hypoparathyroidism , anatomy
The hearing loss of 21 patients with hypoparathyroidism was investigated by pure tone audiometry, short increment sensitivity index (SISI) test, Békésy audiometry, speech audiometry, and auditory brain stem response. Sensorineural hearing loss was found in 7 of 21 patients (13 of 42 ears) receiving no treatment for hypoparathyroidism or having chronic hypocalcemia. The high SISI score, presence of recruitment, and prolongation of the wave I (N 1 ) latency suggested that the inner ear is responsible for hearing loss in these cases. Inner ear dysfunction was probably due to the low calcium level in inner ear fluid and/or the direct effect of vitamin D deficiency on the inner ear.