Influence of medically assisted reproduction techniques on crown-rump length and biochemical markers of trisomy 21 in the first trimester of pregnancy
- Resource Type
- Authors
- Eric Sauleau; Stéphanie Bonne; C. Rongieres; Cherif Akaladios; Nicolas Sananès; Olivier Pirrello
- Source
- Fertility and Sterility
Fertility and Sterility, Elsevier, 2016, 105 (2), ⟨10.1016/j.fertnstert.2015.10.031⟩
- Subject
- Adult
medicine.medical_specialty
Pregnancy-associated plasma protein A
medicine.medical_treatment
hCG
Gestational Age
Fertilization in Vitro
Chorionic Gonadotropin
Crown-Rump Length
Ultrasonography, Prenatal
03 medical and health sciences
early fetal growth
0302 clinical medicine
Pregnancy
medicine
Humans
Pregnancy-Associated Plasma Protein-A
030212 general & internal medicine
Retrospective Studies
Gynecology
Crown-rump length
030219 obstetrics & reproductive medicine
Assisted reproductive technology
business.industry
Obstetrics
Obstetrics and Gynecology
Gestational age
Retrospective cohort study
Robinson's curve
medicine.disease
3. Good health
Pregnancy Trimester, First
Fertility
Treatment Outcome
Reproductive Medicine
[INFO.INFO-TI] Computer Science [cs]/Image Processing [eess.IV]
Infertility
[INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV]
Amenorrhea
Female
PAPP-A
medicine.symptom
Down Syndrome
business
Trisomy
Biomarkers
ART
- Language
- English
- ISSN
- 0015-0282
Objective To determine whether there is a difference between the known gestational age in pregnancies conceived after IVF and the estimated gestational age based on the crown-rump length (CRL) measurement during the first trimester. Design We retrospectively (between 2007 and 2012) studied a cohort of 6,739 patients who underwent ultrasonography between 11 and 13+6 weeks of amenorrhea. Setting Hospital. Patient(s) Group A consisted of 6,621 patients with regular menses whose term was calculated based on the date of their last menstrual period (LMP). Group B consisted of 529 patients whose pregnancies had been achieved by IVF and in whom term was calculated based on the date of fresh or frozen ET. Intervention(s) None. Main Outcome Measure(s) The gestational age difference was obtained by comparing the age obtained by measuring the CRL (Robinson's curve) with the gestational age calculated in accordance with LMP in group A or with ET day in group B. Result(s) The gestational age difference was significantly more in group B (2.3 days vs. 0.84 days in group A). We found a significant difference regarding biochemical markers for trisomy 21 to the detriment of group B with a significantly reduced pregnancy-associated protein P-A multiple of median (0.78 vs. 0.92). Conclusion(s) There appears to be a small difference in CRL development between spontaneous pregnancies and pregnancies conceived by assisted reproductive technology (ART). Specific ultrasonographic curves for pregnancies conceived by ART would be more relevant and precise. The underlying pathophysiological mechanisms are not very clear and offer possibilities for future research.