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Titolo:
MATURATION OF PERIPHERAL AND BRAIN-STEM AUDITORY FUNCTION IN THE FIRST YEAR FOLLOWING PERINATAL ASPHYXIA - A LONGITUDINAL-STUDY
Autore:
JIANG ZD;
Indirizzi:
UNIV OXFORD,DEPT PHYSIOL,PARKS RD OXFORD OX1 3PT ENGLAND
Titolo Testata:
Journal of speech language and hearing research
fascicolo: 1, volume: 41, anno: 1998,
pagine: 83 - 93
Fonte:
ISI
Lingua:
ENG
Soggetto:
STEM RESPONSE THRESHOLDS; INDUCED NEURONAL LOSS; PURE-TONE AUDIOGRAM; EVOKED-POTENTIALS; HEARING-LOSS; PRETERM INFANTS; INTENSIVE-CARE; TERM INFANTS; BIRTH; AMPLITUDE;
Keywords:
NEURAL DEVELOPMENT; AUDITORY MATURATION; HEARING; AUDITORY EVOKED POTENTIAL; ASPHYXIA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Citazioni:
54
Recensione:
Indirizzi per estratti:
Citazione:
Z.D. Jiang, "MATURATION OF PERIPHERAL AND BRAIN-STEM AUDITORY FUNCTION IN THE FIRST YEAR FOLLOWING PERINATAL ASPHYXIA - A LONGITUDINAL-STUDY", Journal of speech language and hearing research, 41(1), 1998, pp. 83-93

Abstract

Maturation of peripheral hearing and auditory brainstem following perinatal asphyxia was investigated by longitudinal recording of brainstem auditory evoked potentials (BAEP) during the first year of life in affected infants. The general maturational course of the BAEP followingasphyxia was similar to that in a control group of infants with normal births, although there were some abnormalities in the BAEP. Responsethreshold elevation seen in a few asphyxiated infants improved significantly during the first 3 months. The interpeak intervals in the asphyxiated infants did not differ significantly from that of the control-group infants except in the first month, when the I-V and Ill-V intervals were significantly prolonged in the severe asphyxia group. In contrast, wave V amplitude and V/I ratio were always smaller when comparedto that of the control-group infants. Amplitude reduction of wave V was more sustained than the prolonged I-V interval. Persistent hearing loss and brainstem auditory impairment were seen in 6.8% and 14.6% of the asphyxiated infants, respectively. These findings suggest that asphyxia does not interfere significantly with the maturation of the auditory system in most asphyxiated infants and that sustained peripheral hearing loss and brainstem impairment occur only in a small proportionof affected infants.

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Documento generato il 23/01/20 alle ore 12:17:48