Study of Chromosomes in the Newborn after Ultrasonic Fetal Heart Monitoring in LabourBr Med J 1972; 3 doi: https://doi.org/10.1136/bmj.3.5830.795 (Published 30 September 1972) Cite this as: Br Med J 1972;3:795
- Mary Lucas,
- Mary Mullarkey,
- Usama Abdulla
The effect of continuous-wave ultrasound on the chromosomes of newborn infants has been investigated. Twenty-four women were studied during labour. The fetal heart was monitored by a Sonicaid FM2 monitor applied to the abdomen, and continuous monitoring undertaken for intervals varying from 1 hour 5 minutes to 9 hours 25 minutes. There was no increase in the number of chromosome aberrations in cultures of blood taken from the insonated babies when compared with controls.