Read by QxMD icon Read

Frozen embryo transfer

V Muller, M Makhmadalieva, I Kogan, I Fedorova, E Lesik, E Komarova, L Dzhemlikhanova, D Niauri, A Gzgzyan, E Ailamazyan
BACKGROUND: Ectopic pregnancy (EP) has been reported to occur in 1.4-5.4% of all clinical pregnancies resulting from in vitro fertilization (IVF) and embryo transfer (ET). Data on factors associated with abnormal embryo implantation following assisted conception are limited. MATERIALS AND METHODS: A systematic review and meta-analysis was performed to determine whether there is an association between the day (cleavage-stage, D3, versus blastocyst, D5) or the type (fresh versus frozen/thawed) of ET and EP rate...
October 2016: Gynecological Endocrinology
Tonghua Wu, Biao Yin, Yuanchang Zhu, Guangui Li, Lijun Ye, Chunmei Chen, Yong Zeng, Desheng Liang
BACKGROUND: Spontaneous abortion (SA) is the most common complication of pregnancy, and chromosome aberrations are the principal cause of the first trimester abortuses in natural conception (NC) The increasing use of assisted reproductive technology (ART) has raised concern about chromosome abnormalities in ART-initiated pregnancies. Up to date, the literature on the risk of aneuploidy in failed pregnancies among various ART factors remain limited and inconclusive. This study aimed to explore the genetic etiology of pregnancy loss conceived from varying ART procedures...
2016: Molecular Cytogenetics
Xinqi Zhong, Jianqiao Liu, Qiliang Cui, Shaozhen Liang, Yuanqing Lin, Haiying Liu, Qiyi Zeng
Assisted reproductive technologies (ART) are widely used to treat infertility. Emerging evidence suggested that ART was associated with perinatal or neonatal problems, however, little is known about the ART related risk factors. Here using 21136 ART cases, we determined the impacts of parental physiological conditions in the ART mediated pregnancy outcomes. In addition, we further evaluated the effects of three different ART methods (frozen-thawed embryo transfer [FET], in vitro fertilization [IVF] and intracytoplasmic sperm injection [ICSI]) in the pregnancy and birth outcomes in ART mediated pregnancy...
October 10, 2016: Oncotarget
Edward L Squires
Most equine embryos are collected from the donor mare and transferred immediately as fresh embryos or shipped cooled to a recipient station for transfer within 24 hours. Very few equine embryos are frozen despite the numerous advantages of embryo cryopreservation. There are 2 major hurdles: Only the small embryos (<300 μm) provide good pregnancy rates after freezing/thawing and transfer. Also there is no good procedure for superovulating mares; thus, extra embryos for freezing are not readily available...
October 8, 2016: Veterinary Clinics of North America. Equine Practice
Alexander M Quaas, Karl R Hansen
No abstract text is available yet for this article.
October 8, 2016: Journal of Assisted Reproduction and Genetics
Jigal Haas, Jim Meriano, Carl Laskin, Yaakov Bentov, Eran Barzilay, Robert F Casper, Ken Cadesky
PURPOSE: The aim of this study was to compare the pregnancy rates between good quality blastocysts vitrified on day 6 versus blastocysts vitrified on day 5 after fertilization. METHODS: This is a retrospective cohort study of 791 freeze-thaw cycles of blastocysts vitrified either on day 5 or on day 6 and transferred between January 2012 and October 2015. Five hundred and thirty-seven cycles included blastocysts vitrified on day 5, and 254 cycles included blastocysts vitrified on day 6...
October 6, 2016: Journal of Assisted Reproduction and Genetics
Frédérique Albarel, Jeanne Perrin, Margaux Jegaden, Florence Roucher-Boulez, Rachel Reynaud, Thierry Brue, Blandine Courbiere
Steroidogenic acute regulatory protein (StAR) mutations are the most frequent aetiologies of congenital lipoid adrenal hyperplasia (CLAH). Phenotypes may vary, and puberty may be absent in affected individuals. To date, only two pregnancies have been described in 46,XX CLAH patients with StAR mutations; these patients exhibited ovarian steroidogenesis along with spontaneous puberty and menarche and normal menses. The patient described here presented with CLAH caused by the homozygous (unreported, 1 bp) deletion c...
October 3, 2016: Human Reproduction
Susan M Maxwell, Pere Colls, Brooke Hodes-Wertz, David H McCulloh, Caroline McCaffrey, Dagan Wells, Santiago Munné, James A Grifo
OBJECTIVE: To determine whether undetected aneuploidy contributes to pregnancy loss after transfer of euploid embryos that have undergone array comparative genomic hybridization (aCGH). DESIGN: Case-control study. SETTING: University-based fertility center. PATIENT(S): Cases included 38 patients who underwent frozen euploid ET as determined by aCGH, resulting in miscarriage. Controls included 38 patients who underwent frozen euploid ET as determined by aCGH, resulting in a live birth...
September 27, 2016: Fertility and Sterility
Somayyeh Safari, Azita Faramarzi, Azam Agha-Rahimi, Mohammad Ali Khalili
The aim was to report a healthy live birth using re-vitrified-warmed cleavage-stage embryos derived from supernumerary warmed embryos after frozen embryo transfer (ET) in a patient with recurrent implantation failure (RIF). The case was a 39-year-old female with a history of polycystic ovarian syndrome and adenomyosis, along with RIF. After ovarian hyperstimulation, 33 cumulus-oocyte complexes were retrieved and fertilized with conventional in vitro fertilization and intracytoplasmic sperm injection. Because of the risk of ovarian hyperstimulation syndrome, 16 grade B and C embryos were vitrified...
September 2016: Clinical and Experimental Reproductive Medicine
Chan Woo Park, Min Hye Choi, Kwang Moon Yang, In Ok Song
OBJECTIVE: To determine the preferred regimen for women with adenomyosis undergoing in vitro fertilization (IVF), we compared the IVF outcomes of fresh embryo transfer (ET) cycles with or without gonadotropin-releasing hormone (GnRH) agonist pretreatment and of frozen-thawed embryo transfer (FET) cycles following GnRH agonist treatment. METHODS: This retrospective study included 241 IVF cycles of women with adenomyosis from January 2006 to January 2012. Fresh ET cycles without (147 cycles, group A) or with (105 cycles, group B) GnRH agonist pretreatment, and FET cycles following GnRH agonist treatment (43 cycles, group C) were compared...
September 2016: Clinical and Experimental Reproductive Medicine
Abha Maheshwari, Edwin Amalraj Raja, Siladitya Bhattacharya
OBJECTIVE: To explore obstetric and perinatal outcomes in singleton pregnancies occurring as a result of fresh and thawed frozen embryo transfer using anonymized Human Fertilisation and Embryology Authority data. DESIGN: Retrospective cohort study. SETTING: Not applicable. PATIENT(S): Singleton births after IVF/intracytoplasmic sperm injection cycles in the United Kingdom (1991-2011). INTERVENTION(S): A total of 112,432 cycles (95,911 fresh and 16,521 frozen) were analyzed using multivariate logistic regression to explore associations between type of embryo transferred (frozen vs...
September 24, 2016: Fertility and Sterility
Perrine Séguin, Kathleen Charvier, Frédérique Courtois, Corinne Del Aguila, Bruno Fernandez, Gilles Rode, Jacqueline Lornage, Alain Ruffion, Sandrine Giscard d'Estaing
OBJECTIVE: Sperm cryopreservation can be offered to men with spinal cord injury, as only 10% of spinal cord injured men (SCI) can have a child without assistive reproductive technologies (ART). Very few studies are dedicated to the outcomes of these cryopreservations. Our study aims to analyze the outcomes of these cryopreservation, namely their use or not for an ART, and to evaluate the success rate in case of ART. MATERIAL/PATIENTS AND METHODS: In May 2015, we retrospectively identified all people with stable spinal cord injury sent to the CECOS (Centre d'études de la conservation des œufs et du sperme: Egg, Sperm Embryo banking) by the department of neuroperineology based in the hospital Henry Gabrielle, for the first time between 1st January 2009 and 31st December 2013, to undergo a sperm cryopreservation of spermatozoa...
September 2016: Annals of Physical and Rehabilitation Medicine
Jichun Tan, Pingping Li, Qiushi Wang, Yaxuan Li, Xiaoni Li, Dongni Zhao, Xiaoyan Xu, Lin Kong
STUDY QUESTION: Does autologous transplantation of menstrual blood-derived stromal cells (menSCs) regenerate endometrium to support pregnancy in patients with severe Asherman's syndrome (AS)? SUMMARY ANSWER: Autologous menSCs transplantation significantly increases endometrial thickness (ET) for women with severe AS. WHAT IS KNOWN ALREADY: AS is a major cause of secondary infertility in women. Cell transplantation has been tried in a few clinical cases with encouraging results...
September 22, 2016: Human Reproduction
I Mateizel, S Santos-Ribeiro, E Done, L Van Landuyt, H Van de Velde, H Tournaye, G Verheyen
STUDY QUESTION: Does the manipulation of gametes or embryos during ARTs increase the risk for monozygotic twinning (MZT)? SUMMARY ANSWER: Frozen embryo transfer (ET) is associated with a lower MZT rate, while blastocyst culture is associated with an increased risk of monozygotic pregnancy. WHAT IS KNOWN ALREADY: Monozygotic twins have a higher risk for perinatal complications. Although an increased incidence of monozygotic pregnancies after ART has been previously reported, data regarding the possible impact of different laboratory procedures are conflicting...
September 22, 2016: Human Reproduction
Georgina M Chambers, Handan Wand, Alan Macaldowie, Michael G Chapman, Cynthia M Farquhar, Mark Bowman, David Molloy, William Ledger
STUDY QUESTION: Have ART live birth rates improved in Australia over the last 12 years? SUMMARY ANSWER: There were striking improvements in per-cycle live birth rates observed for frozen/thaw embryo transfers, blastocyst transfer and single embryo transfer (SET), while live birth rates following ICSI were lower than IVF for non-male factor infertility in most years. WHAT IS ALREADY KNOWN: ART and associated techniques have become the predominant treatment of infertility over the past 30 years in most developed countries...
September 22, 2016: Human Reproduction
Ziya Kalem, Müberra Namlı Kalem, Timur Gürgan
Frozen-thawed (FT) embryo transfer is a procedure used for the storage and transfer of excess embryos obtained during in vitro fertilization- intracytoplasmic sperm injection cycles. In recent years, improvements in laboratory conditions and limitations on the number of embryos to be transferred have led to a progressive increase in FT embryo transfer cycles. However, the best solution for endometrial preparation in these cycles is still a matter of debate. In this study, we aimed to review the current methods of endometrial preparation in FT embryo transfer cycles...
2016: Journal of the Turkish German Gynecological Association
Vineet V Mishra, Ritu Agarwal, Urmila Sharma, Rohina Aggarwal, Sumesh Choudhary, Pradeep Bandwal
PURPOSE OF THE STUDY: To study the role of endometrial and subendometrial blood flow measured by 3D power Doppler as predictors of pregnancy in frozen embryo transfer (FET) cycles. METHODS: A hospital-based prospective study of two hundred and twenty-one (221) women undergoing FET cycles with a triple-line endometrium ≥7 mm on day 14 endometrial and subendometrial blood flow was assessed using 3D power Doppler, and various indices endometrial volume, subendometrial volume and their vascularisation index (VI), flow index (FI) and vascularisation flow index (VFI) were obtained and compared between the pregnant and the non-pregnant group...
October 2016: Journal of Obstetrics and Gynaecology of India
Vineet V Mishra, Sumesh Choudhary, Urmila Sharma, Rohina Aggarwal, Ritu Agarwal, Khushali Gandhi, Nilesh Goraniya
OBJECTIVE: To predict the effectiveness of granulocyte colony-stimulating factor (GCSF) in the treatment of persistent thin endometrium resistant to other treatments in frozen embryo transfer (FET) cycles. STUDY DESIGN: This is a hospital-based prospective study. PATIENTS: Thirty-five women with persistent thin endometrium (<7 mm) resistant to standard treatments were involved in this study. INTERVENTIONS: Intrauterine infusion of GCSF (300 mcg/1 ml) was done in patients with thin endometrium on day 14 of FET cycles, and their endometrial thicknesses were measured after 48 h of infusion...
October 2016: Journal of Obstetrics and Gynaecology of India
Laura Lindsay, Samson N Dowland, Christopher R Murphy
Controlled ovarian hyperstimulation is an essential component of IVF techniques to ensure proliferation and development of multiple ovarian follicules but the effects of these hormones on the endometrium are largely unknown. During normal pregnancy in rats, there are significant changes in the basal plasma membrane of uterine epithelial cells (UECs) at the time of receptivity, including loss of focal adhesions. This enables the UECs to be removed from the implantation chamber surrounding the blastocyst, thus allowing invasion into the underlying stroma...
September 20, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
Fang Gu, Mingfen Deng, Jun Gao, Zilian Wang, Chenhui Ding, Yanwen Xu, Canquan Zhou
BACKGROUND: Embryo culture media used for IVF treatment might affect fetal growth and thus birthweight of the newborns. METHODS: A retrospective study was conducted in South China using data from 2370 singleton neonates born after IVF/ICSI between 2009 and 2012. Two culture media, i.e., either Vitrolife or SAGE were used as embryo culture media during the study period. Neonates' birthweights were compared between the two embryo culture media groups. RESULTS: Among the 2370 singletons, 1755 cases came from fresh cleavage embryo transfer while 615 were from frozen-thawed cleavage embryo transfer...
2016: BMC Pregnancy and Childbirth
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"