Long Latency Auditory Evoked Potential in Term and Premature Infants
Int. arch. otorhinolaryngol. (Impr.)
;
18(1): 16-20, 01/2014.
Artigo
em Inglês
| LILACS
| ID: lil-709753
ABSTRACT
Introduction:
The research in long latency auditory evokes potentials (LLAEP) in newborns is recent because of the cortical structure maturation, but studies note that these potentials may be evidenced at this age and could be considered as indicators of cognitive development.Purpose:
To research the exogenous potentials in term and premature infants during their first month of life. Materials andMethods:
The sample consisted of 25 newborns, 15 term and 10 premature infants. The infants with gestational age under 37 weeks were considered premature. To evaluate the cortical potentials, the infants remained in natural sleep. The LLAEPs were researched binaurally, through insertion earphones, with frequent /ba/ and rare /ga/ speech stimuli in the intensity of 80 dB HL (decibel hearing level). The frequent stimuli presented a total of 80% of the presentations, and the rare, 20%. The data were statistically analyzed.Results:
The average gestational age of the term infants was 38.9 weeks (± 1.3) and for the premature group, 33.9 weeks (± 1.6). It was possible to observe only the potentials P1 and N1 in both groups, but there was no statistically significant difference for the latencies of the components P1 and N1 (p > 0.05) between the groups.Conclusion:
It was possible to observe the exogenous components P1 and N1 of the cortical potentials in both term and preterm newborns of no more than 1 month of age. However, there was no difference between the groups...
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Vias Auditivas
/
Potenciais Evocados Auditivos
Limite:
Recém-Nascido
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Int. arch. otorhinolaryngol. (Impr.)
Assunto da revista:
Otorrinolaringologia
Ano de publicação:
2014
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Federal de Santa Maria/BR
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