To investigate the effect of the exposure to maternal voice, administered by bone conduction, on preterm infants autonomic and neurobehavioral development.
Longitudinal, explorative, case control study.
71 preterm infants with birth weight < 1500 g, born adequate for gestational age Outcome measures: vital and neurobehavioral parameters at term, neurofunctional assessment at 3 and 6 months of corrected age.
Infants in the treatment group had lower heart rate values and a higher proportion of stable skin color at each study point as compared to the control group. The scores in the visual attention performance and in the quality of the general movements at term were better in the treatment group than in the control one. Neurofunctional assessment score at 3 months of corrected age was higher in the treatment group whereas no difference between the two groups was detected at 6 months of corrected age.
Early exposure to maternal voice exerts a beneficial effect on preterm infants autonomic and neurobehavioral development.
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