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Pediatr Neurol. 2000 Sep;23(3):269-70.

Reversible deafness caused by biotinidase deficiency.

Author information

1
Department Pediatrics, Schneider Children's Medical Center of Israel, Sackler School of Medicine, Tel Aviv University, Petah Tiqva, Israel.

Abstract

We present a child with complete biotinidase deficiency who developed bilateral sensorineural deafness without a response to a maximal stimulus of 90 dB in brainstem acoustic-evoked response. After treatment with 20 mg biotin daily, a repeated brainstem acoustic-evoked response demonstrated an improved hearing threshold of 65 dB, and the child began to talk. The case is a rare example of reversible hearing loss caused by to biotinidase deficiency and highlights the need for immediate replacement therapy once the diagnosis is established.

PMID:
11033293
[Indexed for MEDLINE]
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