Intra-amniotic umbilical cord vein velocity: is it useful for identifying small for gestational age fetuses?

Jacqueline Spurway, Patricia Logan, Sokcheon Pak, Sharon Neilsen

Research output: Other contribution to conferencePoster

Abstract

Research has shown that umbilical vein velocity is persistently lower in growth restricted fetuses. This conclusion was evident in both longitudinal and cross-sectional studies, in different sample sizes, in both intra-abdominal and intra-amniotic sampling sites and across a range of gestational ages. However, is this reduced velocity large enough to distinguish between birthweight categories? Linear mixed modelling showed a significant difference between the UCVPV of the three birthweight categories (p < 0.001) and each category had different shaped curves (p = 0.002). However, the confidence intervals of the birthweight category regression curves overlapped between 20 weeks and 1 day and 35 weeks and 1 day GA. ICC demonstrated excellent agreement within (0.99) and between sonographers (0.98). A curvilinear relationship between umbilical vein velocity and GA has been reported previous. The confidence intervals of the birthweight category regression curves overlapped during a 15 week period of crucial fetal growth. Differences between categories were not identifiable during this period inferring that UCVPV could not reliably isolate a SGA fetus.
Original languageEnglish
Publication statusPublished - 21 Jun 2019
Event26th Annual Conference of the Australasian Sonographers Association (ASA 2019) - Brisbane Convention and Exhibition Centre, Brisbane, Australia
Duration: 21 Jun 201923 Jun 2019
http://www.sonographersconference.com/program/interactive-program/.

Conference

Conference26th Annual Conference of the Australasian Sonographers Association (ASA 2019)
CountryAustralia
CityBrisbane
Period21/06/1923/06/19
Internet address

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  • Cite this

    Spurway, J., Logan, P., Pak, S., & Neilsen, S. (2019). Intra-amniotic umbilical cord vein velocity: is it useful for identifying small for gestational age fetuses?. Poster session presented at 26th Annual Conference of the Australasian Sonographers Association (ASA 2019), Brisbane, Australia.