ISSN:
1434-4726
Keywords:
Low-frequency sensorineural hearing loss
;
Electrocochleography
;
Negative summating potential
;
Cochlear action potential
;
Meniere's disease
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary Twenty-four patients with acute low-tone sensorineural hearing loss (ALHL) were examined using electrocochleography. The negative summating potential (SP) amplitude and the summating potential/action potential (AP) ratio were significantly greater in the ALHL patients than in normals. The SP/AP ratio was smaller in the ALHL patients than in patients with known Meniere's disease and moderate hearing loss, although the SP amplitude was somewhat greater in the former. An abnormal increase in the SP amplitude following click stimuli was found in 54% of the ALHL patients, while the SP/AP ratio was increased abnormally in 63% of these patients. These findings suggest that the pathophysiology of ALHL may be similar to that for endolymphatic hydrops.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00180389
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