Purpose: This study aims to examine whether blastocyst morphology post-warming correlates with live birth.
Methods: In this cohort study, morphological characteristics post-warming were reviewed in all single vitrified-warmed blastocyst transfer cycles performed between November 2016 and May 2017. Immediately before transfer, the degree of blastocoel re-expansion was graded as A, fully expanded; B, partially expanded ≥ 50%; C, partially expanded < 50%; and D, collapsed.
Study Question: Is a sub-peritoneal abdominal site a suitable site for cryopreserved ovarian tissue transplantation?
Summary Answer: Live births have resulted from oocytes aspirated from follicles within cryopreserved ovarian tissue transplanted in a sub-peritoneal abdominal site with similar outcomes observed in terms of number of mature oocytes recovered and embryo development from tissue transplanted to sub-peritoneal abdominal, ovarian, and pelvic sites in our clinic.
What Is Known Already: Over 130 live births have been reported from cryopreservation of ovarian tissue and subsequent transplantation. In the majority of these, tissue was transplanted onto the remaining ovary.
Background: Preimplantation genetic diagnosis for aneuploidy (PGD-A) for all 24 chromosomes improves implantation and clinical pregnancy rates per single assisted reproductive technology (ART) cycle. However, there is limited data on the live-birth rate of PGD-A over repeated cycles.
Aim: To assess the cumulative live-birth rates (CLBR) of PGD-A compared with morphological assessment of embryos of up to three 'complete ART cycles' (fresh plus frozen/thaw cycles) in women aged 37 years or older.
Aust N Z J Obstet Gynaecol
April 2013
Background: The number of twins born in Australia steadily increased from 2420 sets in 1983 to 4458 sets in 2010. At one stage, almost 25% of all twin deliveries in Australia were a consequence of assisted reproductive technologies.
Aims: To determine the influence of a policy of single embryo transfer (SET) on the rate of multiple deliveries in Australia.
Cryostorage of reproductive potential, in the form of ovarian cortex, for young women about to undergo cytotoxic therapies has been offered clinically for some time. However, the prospects of re-establishing reproductive function using this tissue remain unclear. We now report reproducible follicular development, oocyte retrieval and embryo development following heterotopic grafting of cryopreserved ovarian cortex which had been stored for over 10 years.
View Article and Find Full Text PDFWe describe the case of a woman with some features of the MURCS (Müllerian duct aplasia, renal aplasia, and cervicothoracic somite dysplasia) association, along with a radial ray anomaly. She had fusion of two cervical vertebrae, and a unicornuate uterus as MURCS components; and thenar muscle hypoplasia and absent radial pulses reflecting radial ray elements. We review two similar cases from the literature.
View Article and Find Full Text PDFAs is the case with non-frozen oocytes, the efficient and successful use of cryopreserved oocytes in human assisted reproduction is, in part, dependent on the ability to apply selection criteria when choosing the 'best' embryos for transfer from a cohort. In many cases this, in turn, will necessitate the cryopreservation of non-transferred embryos to minimise the risk of multiple pregnancy. It is therefore important to establish that an embryo, generated by fertilization of a frozen-thawed oocyte, can be capable of surviving subsequent cryopreservation while retaining the potential for normal development.
View Article and Find Full Text PDFGonadotrophin ovulation induction is currently used for a heterogeneous group of ovulation disorders and unexplained infertility. In the United States it is reported that multiple pregnancy rates of greater than 30% occur as a result of ovulation induction, most commonly after controlled ovarian hyperstimulation and intrauterine insemination. Treatment strategies to reduce the incidence of multiple pregnancies on ovulation induction programs can be targeted to reducing multiple follicular development and subsequent ovulation by a more aggressive cancellation policy, follicle reduction by fine needle aspiration or conversion to IVF; or dealing with the problem of multiple gestation after it has occurred (i.
View Article and Find Full Text PDFObjective: To investigate whether heparin and low-dose aspirin increase the pregnancy rate in antiphospholipid antibody or antinuclear antibody-seropositive women with IVF implantation failure.
Design: A double-blind, randomized, transfer-by-transfer of fresh or cryopreserved embryos, crossover trial.A hospital infertility clinic and associated IVF service.