Gestational age in pregnancies conceived after in vitro fertilization: a comparison between age assessed from oocyte retrieval, crown‐rump length and biparietal diameter

@article{Tunn2000GestationalAI,
  title={Gestational age in pregnancies conceived after in vitro fertilization: a comparison between age assessed from oocyte retrieval, crown‐rump length and biparietal diameter},
  author={Katarina Tun{\'o}n and Sturla H. Eik-Nes and Per Gr{\o}ttum and Vidar von D{\"u}ring and Jarl A. Kahn},
  journal={Ultrasound in Obstetrics and Gynecology},
  year={2000},
  volume={15}
}
Objective  To compare gestational age (GA) and day of delivery estimated from the time of in vitro fertilization (IVF) (oocyte retrieval + 14 days), the ultrasonic measurement of the crown–rump length (CRL) and the biparietal diameter (BPD) in pregnancies conceived in an IVF setting. 
First‐trimester screening in pregnancies conceived by assisted reproductive technology: significance of gestational dating by oocyte retrieval or sonographic measurement of crown–rump length
To evaluate, in pregnancies conceived by assisted reproductive technology, whether determination of gestational age (GA) by date of oocyte aspiration (DOA) or crown–rump length (CRL) at
First trimester ultrasound estimation of gestational age in pregnancies conceived after in vitro fertilization.
Prediction of fetal loss by first-trimester crown–rump length in IVF pregnancies
TLDR
In IVF pregnancies with a live embryo, a small CRL at 40–80 days’ gestation may predict fetal loss, and Repeated ultrasound should be considered after 1–2 weeks.
First‐trimester screening markers are altered in pregnancies conceived after IVF/ICSI
To determine the levels of first‐trimester screening markers and to assess the false‐positive rate for first‐trimester combined screening for Down syndrome in a large national population of women
Increased risk of perinatal/neonatal death in infants who were smaller than expected at ultrasound fetometry in early pregnancy
  • K. Källén
  • Medicine
    Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology
  • 2004
To investigate if there is an association between perinatal/neonatal death and a discrepancy between gestational age by ultrasound fetometry in early pregnancy (GAU) and gestational age by last
Does a first trimester dating scan using crown rump length measurement reduce the rate of induction of labour for prolonged pregnancy? An uncompleted randomised controlled trial of 463 women
TLDR
To evaluate the effect of a first trimester ultrasound dating scan on the rate of induction of labour for prolonged pregnancy, a large number of women selected for the study had at least one friend or relative going through prolonged pregnancy.
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References

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Gestational age in pregnancies after in vitro fertilization: comparison between ultrasound measurements and actual age
To compare gestational age (GA) calculated from oocyte retrieval and from ultrasound measurements in pregnancies after in vitro fertilization (IVF).
Comparison of actual and ultrasound estimated second trimester gestational length in in‐vitro fertilized pregnancies
TLDR
To compare actual and calculated gestational age in pregnancies conceived by in‐vitro fertilisation, data is collected on babies born in the second and third trimesters of pregnancy.
A comparative analysis of second‐trimester ultrasound dating formulae in pregnancies conceived with artificial reproductive techniques
  • T. Mul, M. Mongelli, J. Gardosi
  • Medicine
    Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology
  • 1996
A dataset of 64 pregnancies conceived by artificial reproductive techniques was studied to assess the accuracy of second‐trimester dating formulae when these were applied in routine ultrasound
Accuracy of gestational age estimation by means of fetal crown-rump length measurement.
  • S. Daya
  • Medicine
    American journal of obstetrics and gynecology
  • 1993
Ultrasound evidence for variability in the size and development of normal human embryos before the tenth post-insemination week after assisted reproductive technologies.
TLDR
The results suggest firstly that marked differences occur in the rate of early human development, secondly, that the differences occur prior to day 27 when observable cardiac activity begins, and thirdly, thatThe differences are minimized after day 68 when the embryonic period of development is completed.
Estimation of gestational age by transvaginal sonographic measurement of greatest embryonic length in dated human embryos
  • J. Wisser, P. Dirschedl, S. Krone
  • Medicine
    Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology
  • 1994
TLDR
There was no significant change in the estimation curve when multiple measurements in singletons were taken nor when embryos from multiple pregnancies were measured, and accuracy of embryonic age estimation from a single measurement of greatest embryonic length was evaluated.
In-vitro fertilization pregnancies and perinatal health in Finland 1991-1993.
TLDR
The purpose of this study was to compare IVF mothers with other mothers, and the perinatal health and health care costs of IVF infants to those of other infants, and found that both IVF singletons and multiples had poorer health than other infants.
Comparison of second trimester biometry in singleton and twin pregnancies conceived with assisted reproductive techniques
TLDR
The objective of this study was to investigate the size of singleton vs twin pregnancies at the time of a second trimester dating scan and concluded that the same pregnancy dating charts can be used for singletons and twins.
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