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Brainstem auditory response findings in late preterm infants in neonatal intensive care unit.
MedLine Citation:
PMID:  21342255     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Aim:  To examine brainstem auditory function at term in late preterm infants admitted to neonatal intensive care unit (NICU). Methods:  52 preterm infants, born at 33-36 week gestation, were recruited in an NICU, and studied at term using brainstem auditory evoked response (BAER). Results:  Compared to normal term infants, BAER wave V latency in the NICU preterm infants was increased at 51 and 91/s (p <0.05, 0.05). III-V and I-V intervals were increased at all 21, 51 and 91/s clicks (p <0.05-0.01), which was more significant at higher than lower rates. III-V/I-III interval ratio was increased significantly at 51 and 91/s (p <0.05 and 0.01). Wave I and III latencies and I-III interval did not differ significantly from normal controls at any click rates. All amplitudes of waves I, III and V amplitude tended to be reduced at higher rates, while wave I amplitude was reduced significantly at 91/s clicks. Conclusion:  There were BAER abnormalities in the NICU late preterm infants, suggesting compromised brainstem auditory function. Compared to a basically normal BAER in low-risk late preterm infants previously reported, the abnormalities suggest that perinatal problems or complications adversely affect the late preterm auditory brainstem.
Authors:
Ze D Jiang; Yi Zhou; Li L Ping; Andrew R Wilkinson
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-22
Journal Detail:
Title:  Acta paediatrica (Oslo, Norway : 1992)     Volume:  -     ISSN:  1651-2227     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205968     Medline TA:  Acta Paediatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Acta Paediatrica © 2011 Foundation Acta Paediatrica.
Affiliation:
Division of Neonatology, Children's Hospital, Fudan University, Shanghai Department of Pediatrics, Changzheng Hospital, Second Military Medical University, China Neonatal Unit, Department of Paediatrics, John Radcliffe Hospital, Headington, Oxford, UK.
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