Vibroacoustic stimulation is not associated with sudden fetal catecholamine release

Nicholas M. Fisk, Peter K. Nicolaidis, Sabaratnam Arulkumaran, M. Walter Weg, Yuen Tannirandorn, Umberto Nicolini, Michael J. Parkes, Charles H. Rodeck

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

The safety of vibroacoustic stimulation (VAS), which produces marked changes in fetal heart rate, movements and behavioural state, remains unclear. In order to determine whether VAS is associated with catecholamine release, we measured plasma noradrenaline and adrenaline in 13 appropriately grown normoxaemic fetuses between 28 and 40 weeks gestation immediately before and 60 and 75 s after VAS. Over this time interval, VAS is known to increase fetal heart rate. There was no significant change in either noradrenaline (median change = +0.06 ng/ml, P = 0.26) or adrenaline levels (median changes = +0.03 ng/ml, P = 0.4). This study suggests that sympathoadrenal activation is not part of the fetal response to VAS. These findings do not support the recent suggestion that VAS may be deleterious to the fetus by provoking sudden release of catecholamines.

Original languageEnglish
Pages (from-to)11-17
Number of pages7
JournalEarly Human Development
Volume25
Issue number1
DOIs
Publication statusPublished - 1991

Keywords

  • cardiotocography
  • catecholamines
  • fetal monitoring
  • vibroacoustic stimulation

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