The Fetal Phonogram: A Measure of Fetal Activity

N. Colley*, N. G. Abraham, P. Fayers, D. G. Talbert, W. L. Davies, D. P. Southall

*Corresponding author for this work

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

In 12 pregnant mothers fetal sounds and infrasounds were recorded by means of a new compliance matched transducer and compared with a simultaneous ultrasound record of fetal activity. A defined pattern on the fetal phonograph correlated with 86% of the total fetal breathing detected with ultrasound, and a further distinctive pattern was associated with 90% of fetal movements. Examination of the fetal phonocardiogram when the fetus was breathing showed a significant increase in the short-term variability of both the systolic and diastolic times when compared with non-breathing episodes. The median amplitude variabilities for both the first and the second heart sounds were also significantly increased during fetal breathing. Measurement of fetal sounds and infrasounds with a compliance matched transducer offers a non-invasive method for assessment of fetal activity for long periods of time.

Original languageEnglish
Pages (from-to)931-935
Number of pages5
JournalThe Lancet
Volume327
Issue number8487
DOIs
Publication statusPublished - 26 Apr 1986

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Fetal Movement
Respiration
Transducers
Compliance
Heart Sounds
Fetus

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Colley, N., Abraham, N. G., Fayers, P., Talbert, D. G., Davies, W. L., & Southall, D. P. (1986). The Fetal Phonogram: A Measure of Fetal Activity. The Lancet, 327(8487), 931-935. https://doi.org/10.1016/S0140-6736(86)91042-1

The Fetal Phonogram : A Measure of Fetal Activity. / Colley, N.; Abraham, N. G.; Fayers, P.; Talbert, D. G.; Davies, W. L.; Southall, D. P.

In: The Lancet, Vol. 327, No. 8487, 26.04.1986, p. 931-935.

Research output: Contribution to journalArticle

Colley, N, Abraham, NG, Fayers, P, Talbert, DG, Davies, WL & Southall, DP 1986, 'The Fetal Phonogram: A Measure of Fetal Activity', The Lancet, vol. 327, no. 8487, pp. 931-935. https://doi.org/10.1016/S0140-6736(86)91042-1
Colley N, Abraham NG, Fayers P, Talbert DG, Davies WL, Southall DP. The Fetal Phonogram: A Measure of Fetal Activity. The Lancet. 1986 Apr 26;327(8487):931-935. https://doi.org/10.1016/S0140-6736(86)91042-1
Colley, N. ; Abraham, N. G. ; Fayers, P. ; Talbert, D. G. ; Davies, W. L. ; Southall, D. P. / The Fetal Phonogram : A Measure of Fetal Activity. In: The Lancet. 1986 ; Vol. 327, No. 8487. pp. 931-935.
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