Ultrasound observations of subtle movements: a pilot study comparing foetuses of smoking and nonsmoking mothers
Version of Record online: 22 APR 2015
©2015 The Authors. Acta Pædiatrica published by John Wiley & Sons Ltd on behalf of Foundation Acta Pædiatrica.
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Volume 104, Issue 6, pages 596–603, June 2015
How to Cite
Reissland, N., Francis, B., Kumarendran, K. and Mason, J. (2015), Ultrasound observations of subtle movements: a pilot study comparing foetuses of smoking and nonsmoking mothers. Acta Paediatrica, 104: 596–603. doi: 10.1111/apa.13001
- Issue online: 14 MAY 2015
- Version of Record online: 22 APR 2015
- Accepted manuscript online: 12 MAR 2015 01:00AM EST
- Manuscript Accepted: 10 MAR 2015
- Manuscript Revised: 4 MAR 2015
- Manuscript Received: 16 OCT 2014
- Fine-grained foetal movements;
- Foetal 4D ultrasound;
- Maternal stress;
One way to assess foetal health of smokers is to ask mothers to count perceived movements, an unreliable method hiding differences in prenatal development. The aim of this pilot study was to assess subtle foetal movements in ultrasound scans and establish whether they differ in foetuses of mothers who smoked and nonsmoking mothers.
This longitudinal pilot study recruited twenty mothers (16 nonsmoking; 4 smoking) scanned four times from 24 to 36 weeks gestation (80 ultrasound scans). Two types of fine-grained movements were coded offline and analysed using a Poisson log-linear mixed model.
Foetuses of smoking mothers showed a significantly higher rate of mouth movements compared to foetuses of nonsmoking mothers (p = 0.02), after controlling for maternal stress and depression. As pregnancy progressed, these differences between the smoking and nonsmoking groups widened. Differences between the two groups in the rate of foetal facial self-touch remained constant as pregnancy progressed and were borderline significant (p = 0.07).
Rates of foetal mouth movement and facial self-touch differ significantly between smokers and nonsmokers. A larger study is needed to confirm these results and to investigate specific effects, including the interaction of maternal stress and smoking. Additionally, the feasibility of this technique for clinical practice should be assessed.