Frequent exposure to ultrasound during pregnancy has been linked to intrauterine growth restriction and lower birth weight.
Effects of frequent ultrasound during pregnancy: a randomised controlled trial.
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Key Findings
Abstract
Despite widespread application of ultrasound imaging and Doppler blood flow studies, the effects of their frequent and repeated use in pregnancy have not been evaluated in controlled trials. From 2834 women with single pregnancies at 16-20 weeks gestation, 1415 were selected at random to receive ultrasound imaging and continuous-wave Doppler flow studies at 18, 24, 28, 34, and 38 weeks gestation (the intensive group) and 1419 to receive single ultrasound imaging at 18 weeks (the regular group). Outcome data was obtained from 99% of women who entered the study. The only difference between the two groups was significantly higher intrauterine growth restriction in the intensive group, when expressed both as birthweight
Affiliation
University Department of Obstetrics and Gynaecology, King Edward Memorial Hospital, Sublaco, Perth, Western Australia.
External References
- PubMed ID:
- 8105165
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