Determinación de Valores Normales en Electrococleografía. Centro Médico Naval, 1993 - 1995

Abstract

OBJETIVO: Determinar los tiempos de latencia de las ondas electrococleográficas en pacientes normales en nuestro medio. MÉTODOS: El estudio se realizó en el Servicio de Otorrinolaringología del Centro Médico Naval, Callao - Perú, durante 23 meses. Se evaluó 98 personas (50 hombres y 48 mujeres) tomando un solo oído sano de cada uno. RESULTADOS: Los tiempos de latencia promedio encontrados en los exámenes de electrococleografía realizados en los 98 pacientes fueron compatibles con los valores hallados en otros países. En los pacientes menores de 15 años (6,1%) los tiempos de latencia se encontraron más prolongados que en el promedio. Los tiempos de latencia de acuerdo al oído examinado y según sexo no muestran diferencia significativa. CONCLUSIONES: Los valores de latencia en la electrococleografía dependen directamente del grado de mielinización o madurez neurológica de la vía auditiva.

Electrocochleographic recording in Asian adults: Preliminary normative data and demographic analyses

“…Yet, no significant differences in ECochG results were found between the genders. The findings from the present study, nevertheless, are consistent with the results from the previous reports ( Padilla La Rosa and De Vinatea, 1999 , Franco and Chiong, 2002 ). In a study by Padilla La Rosa and De Vinatea (1999) , ECochG was recorded from 98 healthy subjects (50 males and 48 females) and no notable influence of gender on ECochG components was found.…”

“…The findings from the present study, nevertheless, are consistent with the results from the previous reports ( Padilla La Rosa and De Vinatea, 1999 , Franco and Chiong, 2002 ). In a study by Padilla La Rosa and De Vinatea (1999) , ECochG was recorded from 98 healthy subjects (50 males and 48 females) and no notable influence of gender on ECochG components was found. In contrast, larger SP and AP amplitudes in women were reported in the studies by Chatrian et al.…”

“…As expected, the mean amplitudes of SP and AP in the present study are lower than that of TT-ECochG studies ( Ferraro, 2010 , Sass et al., 1998 ) and higher than the reported ET-ECochG results obtained with ear canal electrodes ( Chatrian et al., 1985 , Padilla La Rosa and De Vinatea, 1999 ). For SP/AP ratio, the upper limit of 90% range value (0.40) agrees well with the findings from the previous studies ( Margolis et al., 1995 , Kim et al., 2005 ).…”

“…It is also unclear whether ECochG outcomes are different between sexes due to discrepancies between previous studies. While the gender influence on ECochG components was reported to be negligible in some studies ( Padilla La Rosa and De Vinatea, 1999 , Franco and Chiong, 2002 ), other studies revealed greater SP and AP amplitudes in females than in males ( Chatrian et al., 1985 , Coats, 1986 ). In the present study, ET-ECochG outcomes between two ethnic groups (Malay and Chinese), as well between sexes were studied.…”