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OBJECTIVE: To obtain information of hearing and neuro-development in children exposed to vibro-acoustic stimulation in utero. DESIGN: Information collected from Swedish child care programmes. SETTING: Department of Obstetrics and Gynaecology, Karolinska Institutet, Danderyd University Hospital, Sweden. SUBJECTS: Children of 460 mothers exposed to vibro-acoustic stimulation for the assessment of fetal well-being during high- and low-risk pregnancies during 1985-1987. MAIN OUTCOME MEASURES: Auditory test (20-25 dB at eight frequencies between 500 and 8000 Hz) and general neurological examination at four years of age. RESULTS: No hearing damage or neuro-developmental abnormalities that could be connected to the vibro-acoustic stimulation were found. CONCLUSIONS: Vibro-acoustic stimulation, as applied in clinical practice, did not endanger either neurological development or hearing in children exposed in utero.
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Nyman et al. (1992) studied this question.
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