The prolonged lockdown of health services providing high-complexity fertility treatments -as currently recommended by many reproductive medicine entities- is detrimental for society as a whole, and infertility patients in particular. Globally, approximately 0.3% of all infants born every year are conceived using assisted reproductive technology (ART) treatments. By contrast, the total number of COVID-19 deaths reported so far represents approximately 1.0% of the total deaths expected to occur worldwide over the first three months of the current year. It seems, therefore, that the number of infants expected to be conceived and born -but who will not be so due to the lockdown of infertility services- might be as significant as the total number of deaths attributed to the COVID-19 pandemic. We herein propose remedies that include a prognostic-stratification of more vulnerable infertility cases in order to plan a progressive restart of worldwide fertility treatments. At a time when preventing complications and limiting burdens for national health systems represent relevant issues, our viewpoint might help competent authorities and health care providers to identify patients who should be prioritized for the continuation of fertility care in a safe environment.
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http://dx.doi.org/10.1186/s12958-020-00605-z | DOI Listing |
J Assist Reprod Genet
December 2024
State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Jinan, 250012, China.
Purpose: This study aims to explore the impact of a woman's previous cesarean delivery (CD) on pregnancy and neonatal outcomes for subsequent in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) and single frozen-thawed embryo transfer (FET), compared with vaginal delivery (VD).
Methods: This was a retrospective cohort study that included a total of 5817 patients who desired to transfer a single vitrified-thawed blastocyst from the same oocyte retrieval cycle as their last live birth between January 2011 and January 2021 at a single reproductive medicine center. Patients with a single previous CD were classified in the CD group, while those with a single VD were assigned to the VD group.
J Assist Reprod Genet
December 2024
Department of Reproduction, Qingdao Municipal Hospital, 5 Donghaizhong Road, Qingdao, 266071, China.
Purpose: In China, the prevalence of hepatitis B virus (HBV) infection among infertile couples is a significant clinical problem. It is necessary to determine the effect of HBV infection on embryo development.
Methods: The 4301 fresh cycles and 5763 frozen embryo transfer (FET) cycles were grouped according to the couple with or without HBV infection.
J Assist Reprod Genet
December 2024
Department of Obstetrics and Gynecology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Purpose: Map the nuclear error phenotypes in the two-cell embryo after assisted reproduction using time lapse images and the effect on good quality blastocyst formation.
Methods: Retrospective cohort study using time lapse images, categorizing 2331 two-cell embryos from 392 patient couples and 504 ART cycles categorizing each embryo as mononucleated, multinucleated, micronucleated, binucleated, split nucleation or mixed error. Correlating nuclear error phenotype with good quality blastocyst formation rate (BFR) using contingency tables and unadjusted odds ratio.
Sci Rep
December 2024
Complete Fertility, Princess Anne Hospital, Level F, Coxford Road, Southampton, SO16 5YA, UK.
Elevated progesterone (EP) or inadequate progesterone levels during ART cycle monitoring may lead to cycle cancellations or further progesterone supplementation, but practice varies. It remains controversial whether modifying clinical practice in the presence or absence of EP improves clinical outcomes. This systematic review aims to investigate if progesterone levels at different phases of fresh and frozen ART cycles influence pregnancy outcomes, in particular, that pertaining to day 3 versus day 5 embryo transfers.
View Article and Find Full Text PDFEnviron Int
December 2024
Center for Reproductive Medicine, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China. Electronic address:
Microplastics (MPs) are pervasive environmental contaminants, resulting in unavoidable human exposure. This study identified MPs in follicular fluid and investigated the specific MPs and mechanisms that adversely affect oocytes. MPs in the follicular fluid of 44 infertile women undergoing assisted reproductive technology were measured using Raman microspectroscopy.
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