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Frozen embryo transfer

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https://www.readbyqxmd.com/read/29778382/comparison-of-the-prevalence-of-chronic-endometritis-as-determined-by-means-of-different-diagnostic-methods-in-women-with-and-without-reproductive-failure
#1
Yingyu Liu, Xiaoyan Chen, Jin Huang, Chi-Chiu Wang, Mei-Yung Yu, Susan Laird, Tin-Chiu Li
OBJECTIVE: To compare the prevalence of chronic endometritis (CE) when different diagnostic methods are used. DESIGN: Prospective observational study. SETTING: University-affiliated hospital. PATIENT(S): Four groups of women were studied, including women with proven fertility (Fertile; n = 40), unexplained recurrent miscarriage (RM; n = 93), recurrent implantation failure (RIF; n = 39), and infertile subjects undergoing endometrial scratch in a natural cycle preceding frozen-thawed embryo transfer (Infertility; n = 48)...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29778369/programming-the-endometrium-for-deferred-transfer-of-cryopreserved-embryos-hormone-replacement-versus-modified-natural-cycles
#2
REVIEW
Eva R Groenewoud, Bernard J Cohlen, Nicholas S Macklon
Over the last decade the use of frozen-thawed embryo transfer has substantially increased, and currently up to one in two embryos transferred has been cryopreserved. To support implantation, endometrial and embryo maturity are required to be synchronized. This can be achieved in various ways. The most commonly applied endometrial preparation methods are the "natural cycle," in which the sequential estrogen and P necessary for endometrial maturation are derived from the developing follicle, and the "artificial" cycle, in which these are sequentially administered...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29778366/introduction-management-of-the-luteal-phase-in-assisted-reproductive-technology
#3
Georg Griesinger, David Meldrum
The increasing utilization of a gonadotropin-releasing hormone agonist ovulation trigger and the widespread use of artificial cycles for the transfer of frozen-thawed or donated embryos has renewed interest in the luteal phase in assisted reproductive technology. The "luteal phase defect" phenomenon is now understood as a continuum: there is less impairment with milder stimulation than with more intense ovarian stimulation, and less impairment after controlled ovarian stimulation and human chorionic gonadotropin ovulation triggering than after gonadotropin-releasing hormone agonist ovulation triggering, the latter being associated with rapid luteolysis...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29773699/comparison-of-the-effect-of-immediate-versus-delayed-transfer-following-a-stimulated-ivf-cycle-on-the-ongoing-pregnancy-rate-of-frozen-thawed-embryo-transfer-cycles-a-study-protocol-for-a-randomised-controlled-trial
#4
He Li, Lu Li, Xiang Lu, Xiaoxi Sun, Ernest Hung Yu Ng
INTRODUCTION: Frozen-thawed embryo transfer (FET) has become an increasingly important part of in-vitro fertilisation (IVF) treatment. Currently, there is still no good scientific evidence to support when to perform FET following a stimulated IVF cycle. Since all published studies are retrospective and the findings are contradictory, a randomised controlled study is needed to provide Level 1 evidence to guide the clinical practice. METHODS/ANALYSIS: This is a randomised controlled trial...
May 17, 2018: BMJ Open
https://www.readbyqxmd.com/read/29764212/the-clinical-application-of-single-sperm-based-snp-haplotyping-for-pgd-of-osteogenesis-imperfecta
#5
Linjun Chen, Zhenyu Diao, Zhipeng Xu, Jianjun Zhou, Guijun Yan, Haixiang Sun
Osteogenesis imperfecta (OI) is a genetically heterogeneous disorder, presenting either autosomal dominant, autosomal recessive or X-linked inheritance patterns. The majority of OI cases are autosomal dominant and are caused by heterozygous mutations in either the COL1A1 or COL1A2 gene. In these dominant disorders, allele dropout (ADO) can lead to misdiagnosis in preimplantation genetic diagnosis (PGD). Polymorphic markers linked to the mutated genes have been used to establish haplotypes for identifying ADO and ensuring the accuracy of PGD...
May 15, 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29751777/high-efficiency-derivation-of-human-embryonic-stem-cell-lines-using-a-culture-system-with-minimized-trophoblast-cell-proliferation
#6
Chuti Laowtammathron, Pimjai Chingsuwanrote, Roungsin Choavaratana, Suphadtra Phornwilardsiri, Ketsara Sitthirit, Chidchanok Kaewjunun, Orawan Makemaharn, Papussorn Terbto, Supaporn Waeteekul, Chanchao Lorthongpanich, Yaowalak U-Pratya, Pimonwan Srisook, Pakpoom Kheolamai, Surapol Issaragrisil
BACKGROUND: Due to their extensive self-renewal and multilineage differentiation capacity, human embryonic stem cells (hESCs) have great potential for studying developmental biology, disease modeling, and developing cell replacement therapy. The first hESC line was generated in 1998 by culturing inner cell mass (ICM) cells isolated from human blastocysts using an immunosurgery technique. Since then, many techniques including mechanical ICM isolation, laser dissection, and whole embryo culture have been used to derive hESC lines...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29745280/reporting-on-longitudinal-live-birth-rates-and-cumulative-delivery-rates-are-more-realistic-outcome-measures-than-sperm-retrieval-rates-in-couples-undergoing-mtese-icsi
#7
Khaled Almekaty, Saad Abomelha, Yau Thum, James Nicopoullos, Tim Bracewell-Milnes, Tet Yap, Suks Minhas
The live birth rates (LBRs) in men with non-obstructive azoospermia (NOA) undergoing microdissection TESE (mTESE) are under reported, with surgical sperm retrieval rate often used as the primary outcome measure. We analysed longitudinal and cumulative delivery rates following mTESE- intracytoplasmic sperm injection (ICSI) in NOA. Sperm was retrieved in 45% of patients undergoing mTESE. Median male and female age were 42 years (IQR 37-47) and 35 years (IQR 31-38) respectively. A total of 141 ICSI cycles and 23 frozen embryo transfers resulted in 62 pregnancies and 37 LBRs...
May 10, 2018: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/29742390/20th-anniversary-of-isolation-of-human-embryonic-stem-cells-a-personal-perspective
#8
REVIEW
Joseph Itskovitz-Eldor
Following Jamie Thomson's lecture on primate embryonic stem cells (ESCs) at a meeting I had organized in March 1997, in Israel, to celebrate receipt of the Wolf Prize in Agriculture to my colleague and friend Neal First, frozen human embryos donated for research in Israel were shipped to Wisconsin. The five hESC lines (H1, H7, H9, H13, and H14) were established by early 1998 and transferred to my laboratory just before publication of their existence in Science, on November 6, 1998. The distribution of the cells from my institute to several laboratories, as early as 1999, enhanced the development of hESC research worldwide...
May 8, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29740927/are-singleton-pregnancies-after-assisted-reproduction-technology-art-associated-with-a-higher-risk-of-placental-anomalies-compared-with-non-art-singleton-pregnancies-a-systematic-review-and-meta-analysis
#9
REVIEW
B G Vermey, A Buchanan, G M Chambers, E M Kolibianakis, J Bosdou, M G Chapman, C A Venetis
BACKGROUND: Placental anomalies (placenta praevia, placental abruption, morbidly adherent placenta and cord insertion anomalies) are associated with maternal and fetal morbidity and mortality. It has been suggested these might be more prevalent in pregnancies after assisted reproduction technology (ART). OBJECTIVES: To determine whether ART singleton pregnancies are associated with an increased risk of placental anomalies compared with non-ART singleton pregnancies...
May 8, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29739361/two-successful-pregnancies-following-fertility-preservation-in-a-patient-with-anaplastic-astrocytoma-a-case-report
#10
Alexandra Peyser, Sara L Bristow, Avner Hershlag
BACKGROUND: Astrocytomas are the most common malignant glial tumors. With improved prognosis, it is possible for patients to pursue pregnancy post-treatment. However, with potential gonadotoxicity of oncology treatments, fertility preservation prior to chemotherapy and/or radiation therapy should be considered. This requires close collaboration between the oncologist and reproductive endocrinologist. To our knowledge this is the first report of successful pregnancies following fertility preservation for AA...
May 9, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29737471/does-the-endometrial-receptivity-array-really-provide-personalized-embryo-transfer
#11
Rawad Bassil, Robert Casper, Nivin Samara, Tzu-Bou Hsieh, Eran Barzilay, Raoul Orvieto, Jigal Haas
PURPOSE: The aim of the present study was to determine the percentage of infertility patients who are diagnosed with a non-receptive endometrium according to the endometrial receptivity array (ERA) test and to examine whether adjusting the embryo transfer day according to the proposed shift in the window of implantation improves the pregnancy rate compared to non-ERA-tested patients. METHODS: A single-center retrospective cohort study, including 53 consecutive good prognosis patients (0-2 previous frozen embryo transfers) admitted to our IVF unit for a mock cycle prior to their frozen day-5 embryo (blastocyst) transfer cycle...
May 8, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29734407/effect-of-developmental-stage-of-embryos-at-freezing-on-live-birth-outcomes-after-frozen-embryo-transfer
#12
X J Zhang, Q Lv, L H Min, X H Cao, X J Li
  Purpose Our objective was to evaluate the birth outcomes of FET from different developmental stage of embryo at freezing (Day 3, Day 5 and Day 6). Methods All vitrified-warmed day 3 (D3) and day 5/6 (D5, D6) embryo transfers during the time period from January 2013 until December 2015 were included in the study. The Birthweight, Low birthweight (LBW), sexual distinction, gestation and for singleton births and twins conceived by FET were compared retrospectively between three cryopreservation strategies utilizing either D3, D5 or D6 embryo freezing...
September 2017: Cryo Letters
https://www.readbyqxmd.com/read/29734126/horse-embryo-diameter-is-influenced-by-the-embryonic-age-but-not-by-the-type-of-semen-used-to-inseminate-donor-mares
#13
J Cuervo-Arango, A N Claes, T A E Stout
The diameter of embryos recovered from mares on Day 8 after ovulation varies greatly, from as little as 130 μm to as much as 2500 μm. Several factors have been proposed to affect embryo size at recovery, one of which is the type of semen (frozen vs fresh or cooled-transported) used to inseminate the mare. In addition, it has been shown that smaller embryos (<300 μm) recovered on Day 8 are less likely than larger embryos to result in successful pregnancy after transfer. However, whether the actual age of the embryo (interval from fertilization to flushing) in relation to its size also influences the post-transfer viability is unclear...
April 27, 2018: Theriogenology
https://www.readbyqxmd.com/read/29718297/the-effect-of-supraphysiological-estradiol-on-pregnancy-outcomes-differs-between-women-with-pcos-and-ovulatory-women
#14
Daimin Wei, Yunhai Yu, Mei Sun, Yuhua Shi, Yun Sun, Xiaohui Deng, Jing Li, Ze Wang, Shigang Zhao, Heping Zhang, Richard S Legro, Zi-Jiang Chen
Context: Supra-physiological estradiol exposure after ovarian stimulation may disrupt embryo implantation after fresh embryo transfer, compared with physiological estradiol exposure during frozen embryo transfer(FET). Women with polycystic ovary syndrome (PCOS) who usually over-respond to ovarian stimulation have a better live birth rate after elective FET than fresh embryo transfer; however ovulatory women don't. Objective: To evaluate whether the discrepancy in live birth rate after fresh versus FET between women with PCOS and ovulatory women was due to the variation in ovarian response, i...
April 27, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29714057/large-for-gestational-age-and-macrosomia-in-singletons-born-after-frozen-thawed-embryo-transfer-fet-in-assisted-reproductive-technology-art
#15
REVIEW
Sine Berntsen, Anja Pinborg
Increase in success rates with frozen embryo transfer (FET) and reduced risk of ovarian hyperstimulation syndrome (OHSS) and multiple pregnancies has lead to a steady rise in FET. Further, FET is associated with lower risk of prematurity and low birth weight in singletons, when compared with fresh transfer. However, there is a growing concern of increased risk of large for gestational (LGA) and/or macrosomic children after FET. Macrosomic/LGA births have a higher risk of cesarean section, fetal hypoxia and stillbirth...
May 1, 2018: Birth Defects Research
https://www.readbyqxmd.com/read/29708103/retrospective-study-to-compare-frozen-thawed-embryo-transfer-with-fresh-embryo-transfer-on-pregnancy-outcome-following-intracytoplasmic-sperm-injection-for-male-infertility
#16
Xue Wang, Huan Wu, Xiaojin He, Huanhuan Jiang, Longmei Wu, Yuping Xu, Ping Zhou, Zhaolian Wei, Yunxia Cao
BACKGROUND With the development of assisted reproductive technology, there is increasing evidence that frozen-thawed (FT) embryo transfer achieves a better outcome when compared with fresh embryo transfer in different types of infertile individuals. This aim of this study was to investigate the effect of FT embryo transfer for intracytoplasmic sperm injection (ICSI) on pregnancy outcome in assisted reproductive technology for male infertility. MATERIAL AND METHODS A total of 516 embryo transfer cycles (286 fresh embryo transfer cycles and 230 FT embryo transfer cycles) were studied, in which ICSI treatment was performed for the first time because of male infertility...
April 30, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29707689/new-ambulatory-hysteroscopic-septoplasty-using-ballooning-in-a-woman-with-complete-septate-uterus-a-case-report
#17
Jung Hyun Cho, Hyung Jae Won, Mi Kyoung Kim, Ju Hee Park, Ju Youn Hwang
A 40-year-old G1 P0 L0 A1 woman was referred to our clinic with 6-year history of infertility. Before visiting the clinic, she had 3 cycles of In-Vitro Fertilization (IVF) procedures (2 cycles of Controlled Ovarian Stimulation-IVF and 1 cycle of frozen-thawed Embryo Transfer (ET)) at other clinic. She had medical history of abortion at early gestation following FET (frozen-thawed-ET). The patient had complete type of septate uterus, double cervix and longitudinal vaginal septum. Vaginal septotomy was done first and 1 month later, hysteroscopic septoplasty was followed using ballooning filled with dye...
March 2018: Balsaeng'gwa Saengsig
https://www.readbyqxmd.com/read/29697926/comparison-of-two-commercial-embryo-culture-media-sage-1-step-single-medium-vs-g1-plustm-g2-plustm-sequential-media-influence-on-in-vitro-fertilization-outcomes-and-human-embryo-quality
#18
Iratxe López-Pelayo, Javier María Gutiérrez-Romero, Ana Isabel Mangano Armada, María Mercedes Calero-Ruiz, Pablo Javier Moreno de Acevedo-Yagüe
OBJECTIVE: To compare embryo quality, fertilization, implantation, miscarriage and clinical pregnancy rates for embryos cultured in two different commercial culture media until D-2 or D-3. METHODS: In this retrospective study, we analyzed 189 cycles performed in 2016. Metaphase II oocytes were microinjected and allocated into single medium (SAGE 1-STEP, Origio) until transferred, frozen or discarded; or, if sequential media were used, the oocytes were cultured in G1-PLUSTM (Vitrolife) up to D-2 or D-3 and in G2-PLUSTM (Vitrolife) to transfer...
April 26, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29692677/comparative-study-of-obstetric-and-neonatal-outcomes-of-live-births-between-poor-and-good-quality-embryo-transfers
#19
Kozue Akamine, Keiko Mekaru, Keiya Gibo, Chinatsu Nagata, Sugiko Oishi, Maho Miyagi, Chiaki Heshiki, Tadatugu Kinjo, Hitoshi Masamoto, Yoichi Aoki
Purpose: To evaluate the effect of embryo quality on pregnancy outcomes. Methods: This retrospective analysis included 80 live singleton births, resulting from morphologically good-quality embryo transfers, and 25 live singleton births that resulted from morphologically poor-quality embryo transfers between January, 2008 and December, 2014. Cleavage embryos that were graded as ≥2, according to the Veeck classification system, and blastocysts that were graded as ≥3BB, according to the Gardner classification system, were defined as good quality...
April 2018: Reproductive Medicine and Biology
https://www.readbyqxmd.com/read/29684629/mid-luteal-phase-gonadotropin-releasing-hormone-agonist-support-in-frozen-thawed-embryo-transfers-during-artificial-cycles-a-prospective-interventional-pilot-study
#20
Jaana Seikkula, Katja Ahinko, Päivi Polo-Kantola, Leena Anttila, Saija Hurme, Helena Tinkanen, Varpu Jokimaa
OBJECTIVE: To assess the effect of an additional single mid-luteal dose of gonadotropin-releasing hormone agonist (GnRHa) on pregnancy and perinatal outcomes in hormonally substituted frozen embryo transfer (FET) cycles. STUDY DESIGN: A prospective interventional pilot study. Women scheduled for FET were randomly selected to receive standard hormonal replacement therapy (HRT) for endometrial preparation or HRT with a single additional subcutaneous dose of 0.1mg triptorelin at the time of implantation...
April 20, 2018: Journal of Gynecology Obstetrics and Human Reproduction
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