https://www.thelancet.com/pdfs/journals/lancet/PIIS0140-6736(99)04345-7.pdf

Deliveries and children born after in-vitro fertilisation in Sweden 1982–95: a retrospective cohort study

The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) is a scientific organization that encourages sound clinical practice, and high quality teaching and research related to diagnostic imaging in women's healthcare. The ISUOG Clinical Standards Com mittee (CSC) has a remit to develop Practice Gui delines and Consensus Statements as educational recommendations that provide healthcare practit ioners with a consensus based approach, from experts, for diagnostic imaging. They are intended to reflect what is considered by ISUOG to be the best practice at the time at which they are issued. Although ISUOG has made every effort to ensure that Guidelines are accurate when issued, neither the Society nor any of its employees or members accepts any liability for the consequences of any inaccurate or misleading data, opinions or state ments issued by the CSC. The ISUOG CSC docu ments are not intended to establish a legal stan dard of care because interpretation of the eviden ce that underpins the Guidelines may be influen ced by individual circumstances, local protocol and available resources. Approved Guidelines can be distributed freely with the permission of ISUOG (info@isuog.org).

https://obgyn.onlinelibrary.wiley.com/doi/epdf/10.1002/uog.15821

ISUOG Practice Guidelines: role of ultrasound in twin pregnancy.

Importance Despite lack of evidence of their utility, biomarkers of ovarian reserve are being promoted as potential markers of reproductive potential. Objective To determine the associations between biomarkers of ovarian reserve and reproductive potential among women of late reproductive age. Design, Setting, and Participants Prospective time-to-pregnancy cohort study (2008 to date of last follow-up in March 2016) of women (N = 981) aged 30 to 44 years without a history of infertility who had been trying to conceive for 3 months or less, recruited from the community in the Raleigh-Durham, North Carolina, area. Exposures Early-follicular-phase serum level of antimullerian hormone (AMH), follicle-stimulating hormone (FSH), and inhibin B and urinary level of FSH. Main Outcomes and Measures The primary outcomes were the cumulative probability of conception by 6 and 12 cycles of attempt and relative fecundability (probability of conception in a given menstrual cycle). Conception was defined as a positive pregnancy test result. Results A total of 750 women (mean age, 33.3 [SD, 3.2] years; 77% white; 36% overweight or obese) provided a blood and urine sample and were included in the analysis. After adjusting for age, body mass index, race, current smoking status, and recent hormonal contraceptive use, women with low AMH values ( 10 mIU/mL [n = 83]) did not have a significantly different predicted probability of conceiving after 6 cycles of attempt (63%; 95% CI, 50%-73%) compared with women (n = 654) with normal values (62%; 95% CI, 57%-66%) or after 12 cycles of attempt (82% [95% CI, 70%-89%] vs 75% [95% CI, 70%-78%], respectively). Women with high urinary FSH values (>11.5 mIU/mg creatinine [n = 69]) did not have a significantly different predicted probability of conceiving after 6 cycles of attempt (61%; 95% CI, 46%-74%) compared with women (n = 660) with normal values (62%; 95% CI, 58%-66%) or after 12 cycles of attempt (70% [95% CI, 54%-80%] vs 76% [95% CI, 72%-80%], respectively). Inhibin B levels (n = 737) were not associated with the probability of conceiving in a given cycle (hazard ratio per 1-pg/mL increase, 0.999; 95% CI, 0.997-1.001). Conclusions and Relevance Among women aged 30 to 44 years without a history of infertility who had been trying to conceive for 3 months or less, biomarkers indicating diminished ovarian reserve compared with normal ovarian reserve were not associated with reduced fertility. These findings do not support the use of urinary or blood follicle-stimulating hormone tests or antimullerian hormone levels to assess natural fertility for women with these characteristics.

https://jamanetwork.com/journals/jama/articlepdf/2656811/jama_steiner_2017_oi_170115.pdf

Association Between Biomarkers of Ovarian Reserve and Infertility Among Older Women of Reproductive Age.

Endoscopic laser coagulation in the management of severe twin-to-twin transfusion syndrome

Antenatal origin of neurologic damage in newborn infants. II. Multiple gestations.

Multiple pregnancy. 1.

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Multiple pregnancy. 1.