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Maximum length sequence brainstem auditory evoked response in low-risk late preterm babies.
MedLine Citation:
PMID:  20624012     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Objectives.?Recent research indicates that there is delayed development in the more central part of the auditory brainstem in very preterm babies. We aimed to study whether this is also the case for late preterm babies. Methods.?The maximum length sequence brainstem auditory evoked response (MLS BAER) was used to study functional status of the auditory brainstem. Babies born at 33?36 week gestation and without any major perinatal complications were recruited. MLS BAER was recorded and analyzed at term age. Results.?No significant correlation was found between most MLS BAER variables and physiological factors (gender, postconceptional age, bodyweight, and head circumference obtained at time of testing). Wave latencies and amplitudes, and I?V and I?III intervals in the preterm babies were essentially similar to those in the term controls at all click rates. However, III?V interval increased significantly at 227?910/s clicks (p?<?0.05?0.01). All latencies, amplitudes and intervals correlated significantly with click rates (all p?<?0.001). No differences were found in the slopes of MLS BAER variables?rate functions between the later preterm babies and term controls. Conclusions.?Babies born at 33?36 weeks gestation without major complications had an increased III?V interval at high-rate stimulation. This suggests that late preterm babies have a mild delay in neural conduction in the more central part of the auditory brainstem.
Authors:
Zhi H Li; Chao Chen; Andrew R Wilkinson; Ze D Jiang
Publication Detail:
Type:  Journal Article     Date:  2010-07-12
Journal Detail:
Title:  The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians     Volume:  24     ISSN:  1476-4954     ISO Abbreviation:  J. Matern. Fetal. Neonatal. Med.     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-02-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136916     Medline TA:  J Matern Fetal Neonatal Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  536-40     Citation Subset:  IM    
Affiliation:
Division of Neonatology, Children's Hospital of Fudan University, Shanghai, China.
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