| Autor: |
Zeigelboim BS; Departament of Otoneurology, Univesidade Tuiuti do Paraná, Curitiba, Paraná State, Brazil., Teive HAG; Neurology Service, Hospital de Clínicas, Universidade Federal do Paraná, Curitiba, Paraná State, Brazil., Rosa MRD; Departament of Otoneurology, Univesidade Tuiuti do Paraná, Curitiba, Paraná State, Brazil., Malisky JS; Departament of Otoneurology, Univesidade Tuiuti do Paraná, Curitiba, Paraná State, Brazil., Fonseca VR; Departament of Otoneurology, Univesidade Tuiuti do Paraná, Curitiba, Paraná State, Brazil., Marques JM; Departament of Otoneurology, Univesidade Tuiuti do Paraná, Curitiba, Paraná State, Brazil., Liberalesso PB; Departament of Neurology, Hospital Pequeno Príncipe, Curitiba, Paraná State, Brasil. |
| Abstrakt: |
Objective To assess central auditory function in Friedreich's ataxia. Methods A cross-sectional, retrospective study was carried out. Thirty patients underwent the anamnesis, otorhinolaryngology examination, pure tone audiometry, acoustic immittance measures and brainstem auditory evoked potential (BAEP) assessments. Results The observed alterations were: 43.3% in the pure tone audiometry, bilateral in 36.7%; 56.6% in the BAEP test, bilateral in 50%; and 46.6% in the acoustic immittance test. There was a significant difference (p < 0.05) in the comparison between the tests performed. Conclusion In the audiological screening, there was a prevalence of the descending audiometric configuration at the frequency of 4kHz, and absence of the acoustic reflex at the same frequency. In the BAEP test, there was a prevalence of an increase of the latencies in waves I, III and V, and in the intervals of interpeaks I-III, I-V and III-V. In 13.3% of the patients, wave V was absent, and all waves were absent in 3.3% of patients. |
