Accuracy of ultrasound dating formulae in the late second-trimester in pregnancies conceived with in-vitro fertilization

2003 ◽  
Vol 44 (4) ◽  
pp. 452-455 ◽  
Author(s):  
M. Mongelli ◽  
N. G. Yuxin ◽  
A. Biswas ◽  
S. Chew

Purpose: To investigate the accuracy of ultrasound dating formulae in the late second trimester of pregnancy. Material and Methods: A dataset of 136 singleton pregnancies conceived by artificial reproductive techniques was studied to assess the accuracy of ultrasound dating formulae in the late second trimester, and compared with early second trimester. A total of 21 published ultrasound-dating formulae were tested. Results: For most formulae, late second trimester scans yielded results that were marginally less accurate than the early second trimester. The best performance was obtained with dating formulae based on femur length, either alone or combined with the biparietal diameter. These formulae had mean absolute errors of 3–3.5 days. Combining two or more parameters did not result in any substantial gain in accuracy. Conclusions: Pregnancy dating by ultrasound in the late second trimester is sufficiently accurate for routine clinical use. Formulae based on femur length appear to be at least as accurate as head measurements.

2005 ◽  
Vol 58 (7-8) ◽  
pp. 375-379 ◽  
Author(s):  
Dunja Tabs ◽  
Tihomir Vejnovic ◽  
Nebojsa Radunovic

Women conceiving by assisted reproduction are at higher risk for preterm and premature rupture of membranes. The aim of our study was to estimate and compare incidence of preterm premature rupture of membranes in singleton pregnancies of women who conceived by intrauterine insemination and in vitro fertilization, from 1999 to 2003. We investigated 87 women from the intrauterine insemination, and 102 from the in vitro fertilization program. There were no statistically significant differences in regard to preterm and premature rupture of membranes: p>0.75 in two groups. The incidence of premature rupture of membranes was 2.30% (after intrauterine insemination) and 2.94% (after in vitro fertilization). There was no statistically significant differences in regard to preterm and premature rupture of membranes in women who conceived by insemination and in vitro fertilization. Estimated incidence of preterm and premature rupture of membranes was similar to the literature data and also similar to incidence after natural conception.


2019 ◽  
Vol 112 (6) ◽  
pp. 1112-1117
Author(s):  
Yelena Dondik ◽  
Kelly Pagidas ◽  
Elizabeth Eklund ◽  
Christina Ngo ◽  
Glenn E. Palomaki ◽  
...  

1994 ◽  
Vol 9 (1) ◽  
pp. 141-146 ◽  
Author(s):  
Jim X. Wang ◽  
Anne M. Clark ◽  
Christine A. Kirby ◽  
Gregory Philipson ◽  
Oswald Petrucco ◽  
...  

2015 ◽  
Vol 125 (3) ◽  
pp. 621-627 ◽  
Author(s):  
Leah Hawkins Bressler ◽  
Katharine F. Correia ◽  
Serene S. Srouji ◽  
Mark D. Hornstein ◽  
Stacey A. Missmer

2016 ◽  
Vol 32 (2) ◽  
Author(s):  
O.S. Verma

Worldwide, about 200 million couples are infertile. Almost 15 per cent of them require ART and IVF treatments. Couples who are unable to conceive even after years of trying could use procedure called Assisted Reproductive Techniques (ART) to get pregnant. These includes Intrauterine Insemination, In-Vitro Fertilization (IVF), Spern / Egg donation, and Gestational Carriers called “Surrogacy”. People join for Surrogacy when they want to have their genes in the child but can not make it happen in natural course. There are two types of Surrogacy: (1) The man’s sperm and the woman’s ova is injected in the uterus of the surrogate mother who rents out her womb for the child, (2) If the Egg of the mother is not good enough to produce a baby, an Egg is then rented out by donor mother. A tripartite agreement is duly signed according to the terms and conditions prevalent at that time. This Editorial viewed Surrogacy Industry through the lens of intent, efficacy, and its purview.


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