Ze D Jiang1, Andrew R Wilkinson. 1. Department of Pediatrics, Children's Hospital, Fudan University, Shanghai, China. zedong.jiang@paediatrics.ox.ac.uk
Abstract
AIM: The aim of this study was to detect any differences in brainstem auditory evoked responses (BAERs) to different click rates between moderately preterm and term infants. METHODS: BAER was recorded with 21-91/s clicks at term age (37-42 weeks postconceptional age) in 39 moderately preterm infants (gestation 33-36 weeks). The results were compared with 37 healthy term infants. RESULTS: The latencies of waves I, III and V, and I-V interval in preterm infants were all similar to term infants at all click rates. The I-III interval decreased slightly and differed from term infants at 91/s (ANOVA, p < 0.05), while the III-V interval increased slightly. The III-V/I-III interval ratio increased slightly and differed from term infants at 91/s (p < 0.05). Wave amplitudes were similar in the two groups of infants, except an increase in wave V amplitude at 91/s in preterm infants (p < 0.05). No significant differences were found in BAER click rate-dependent changes between the two groups. CONCLUSION: No marked differences were found in BAER at any click rates at term age between moderately preterm and term infants, suggesting that moderately preterm birth does not have a marked effect on neonatal BAER. BAER normal data and criteria from term infants can generally be used for moderately preterm infants.
AIM: The aim of this study was to detect any differences in brainstem auditory evoked responses (BAERs) to different click rates between moderately preterm and term infants. METHODS: BAER was recorded with 21-91/s clicks at term age (37-42 weeks postconceptional age) in 39 moderately preterm infants (gestation 33-36 weeks). The results were compared with 37 healthy term infants. RESULTS: The latencies of waves I, III and V, and I-V interval in preterm infants were all similar to term infants at all click rates. The I-III interval decreased slightly and differed from term infants at 91/s (ANOVA, p < 0.05), while the III-V interval increased slightly. The III-V/I-III interval ratio increased slightly and differed from term infants at 91/s (p < 0.05). Wave amplitudes were similar in the two groups of infants, except an increase in wave V amplitude at 91/s in preterm infants (p < 0.05). No significant differences were found in BAER click rate-dependent changes between the two groups. CONCLUSION: No marked differences were found in BAER at any click rates at term age between moderately preterm and term infants, suggesting that moderately preterm birth does not have a marked effect on neonatal BAER. BAER normal data and criteria from term infants can generally be used for moderately preterm infants.
Authors: L Borenstein-Levin; R Taha; A Riskin; H Hafner; A Cohen-Vaizer; A Gordin; Y Littner; G Dinur; O Hochwald; A Kugelman Journal: Pediatr Res Date: 2021-11-17 Impact factor: 3.953
Authors: Maria Francisca Colella-Santos; Thaís Antonelli Diniz Hein; Gabriele Libano de Souza; Maria Isabel Ramos do Amaral; Raquel Leme Casali Journal: Biomed Res Int Date: 2014-06-09 Impact factor: 3.411