Hearing Outcome of Low-tone Compared to High-tone Sudden Sensorineural Hearing Loss
Int. arch. otorhinolaryngol. (Impr.)
;
23(1): 65-69, Jan.-Mar. 2019. tab, graf
Article
in English
| LILACS
| ID: biblio-1002178
ABSTRACT
Abstract Introduction Low-tone sudden sensorineural hearing loss (SSHL) is a well-recognized disease, in which the hearing loss is restricted to low frequencies. In contrast to lowtone SSHL, high-tone SSHL is characterized by high-frequency (4,000, 8,000 Hz) hearing loss and preservation of low-, middle-frequency hearing. Objective The objective of this study is to compare the hearing recovery and longterm outcome of low-tone SSHL with those of patients affected by high-tone SSHL in a follow-up of ~ 3 years. Methods The low-tone SSHL and high-tone SSHL groups included 27 and 20 patients, respectively; the patients of both groups were treated with intravenous steroids. Predictive factors (gender, affected side, delay of treatment, follow-up time) were also examined. Results Overall, complete hearing recovery was observed in 77.7% of the patients in the low-tone SSHL group and in 15% of the patients in the high-tone SSHL group. In the high-tone SSHL group, a higher proportion of patients reported tinnitus compared with the low-tone SSHL group (13 cases [65%] versus 3 cases [11%]); however, recurrences were more common in the low-tone SSHL (22%, 6 patients) compared with the hightone SSHL (2 cases [10%]) group. No predictive factor was found to statistically impact on hearing outcome. Conclusion After initial therapy, the low-tone SSHL patients have more favorable hearing outcome than high-tone SSHL patients. However, recurrences occurred more frequently in the low-tone SSHL group, while the high-tone SSHL group was more often accompanied by residual symptoms, such as tinnitus. (AU)
Full text:
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Index:
LILACS (Americas)
Main subject:
Hearing Loss, High-Frequency
/
Hearing Loss, Sensorineural
Type of study:
Observational study
/
Prognostic study
/
Risk factors
Limits:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
Language:
English
Journal:
Int. arch. otorhinolaryngol. (Impr.)
Journal subject:
Otolaryngology
Year:
2019
Type:
Article
Affiliation country:
Greece
Institution/Affiliation country:
Aristotle University of Thessaloniki/GR
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