ISSN 1612-3352

Editors in Chief

Prof. Dr. Claus F. Claussen, Neurootological Research Institute of the Research Society for Smell, Taste, Hearing and Equilibrium Disorders at Bad Kissingen (4-G-F). Bad Kissingen, Germany.
Dr. med. Julia M. Bergmann,
Dr. med. Guillermo O. Bertora,
Otoneuroophthalmological Neurophysiology,
Buenos Aires, Argentina.

Production Managers

Dr. med. Julia M. Bergmann,
Dr. med. Guillermo O. Bertora,
Otoneuroophthalmological Neurophysiology,
Buenos Aires, Argentina.


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Sudden deafness in childhood: a report of four cases

Abstract

BACKGROUND: sudden deafness is not a common pathology in childhood. Generally is not associated with dizziness and tinnitus. Very frequently the diagnosis is postpone because the parents and the patients don´t notice the isolated hearing loss. Sometimes the etiology is not found but there are evidences that inner ear malformation and viral infections are related to the pathology.
OBJECTIVES: to demonstrate some of the clinical aspects of the sensoryneural sudden deafness in childhood and discuss possible etiologies.
METHODS: analysis of four children with a clinical presentation of unilateral sudden deafness.
RESULTS AND DISCUSSION: we describe four patients with a clinical presentation of sudden deafness, with ages between 10 – 14 years, all females, without any personal or familial background of deafness, submitted to cortical therapy. There was a partial recovery of the auditive thresholds in one patient, total recovery in two patients and there wasn´t any hearing improvement in one patient. Inner ear malformation, that represents one of the main causes of sudden deafness in childhood, wasn´t found in the radiological investigation in any of the four patients. Sorologyc exams also were negative, contradicting the viral etiology as an important cause of sudden deafness in childhood, althought this topic is controversial. In the MRI of one patient we found vascular insults, that is expected in children with migraine. This finding could suppose the occurrence of coclear vasospams as a possible etiology. We also found hypoglycemia in two childs that could be associated with sudden deafness.
CONCLUSION: sudden deafness seems to be less frequent in childhood than in adults, probably due to the difficult diagnosis. Because of this, a detailed investigation is necessary to find the possible etiologies.

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