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Embryo morphokinetics

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https://www.readbyqxmd.com/read/30112232/live-birth-from-the-transfer-of-a-severely-fragmented-embryo-observed-by-morphokinetics
#1
S Lahav-Baratz, I Blais, M Koifman, D Ishai, Z Wiener-Megnazi, G Peer, M Dirnfeld
We report a live birth from a heavily fragmented embryo which continued cleavage to a fully expanded blastocyst. A 32-year-old patient underwent 2 IVF cycles without achieving pregnancy. In the first cycle, 2 embryos with fragmentation were transferred; in the second, all embryos were fragmented and no embryo transfer was performed. In a third cycle, 12 oocytes were retrieved and 11 of them were fertilized. On day 2, all 11 embryos started to unwind to fragments. By careful annotation, using the time-lapse EmbryoScope, we observed that one embryo continued division as expected, discarding all fragments aside...
2018: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/30107362/effects-of-opening-the-incubator-on-morphokinetics-in-mouse-embryos
#2
Quyen Nguyen, Sophia Sommer, Brandon Greene, Christine Wrenzycki, Uwe Wagner, Volker Ziller
OBJECTIVE: To evaluate the effects of incubator door openings by the sensitive measurement of morphokinetics using time-lapse imaging. STUDY DESIGN: To mimic lab practice and to evaluate minimal changes in culture conditions a randomized parallel group study with mouse embryos was designed. 249 murine zygotes derived from 31 mice were randomly distributed into two groups. Embryos of the control group were non-invasively monitored with a Primovision time-lapse system (Vitrolife) in the incubator that was completely closed for 5 days, while the conditions for the embryos in the treatment group were interrupted by two door openings per day of 10 s each...
August 3, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/30031399/is-there-a-correlation-between-follicle-size-and-gene-expression-in-cumulus-cells-and-is-gene-expression-an-indicator-of-embryo-development
#3
Semra Kahraman, Caroline Pirkevi Çetinkaya, Murat Çetinkaya, Mehmet Ali Tüfekçi, Cumhur Gökhan Ekmekçi, Markus Montag
BACKGROUND: In an article published in 2017, we discussed the results of the first part of our study into the morphokinetic development of embryos in relation to follicle diameter and homogeneity of follicular development. Our findings showed that embryos coming from small follicles in heterogeneous cycles had significantly higher rates of arrest or failure to reach blastocyst than embryos coming from large follicles in homogenous cycles. The aim of this further study was to investigate the relationship between follicular size and gene expression of cumulus cells (CCs) and evaluate whether gene expression could be an indicator of embryo development...
July 21, 2018: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29995338/assessing-icsi-outcome-by-combining-non-invasive-indicators-early-time-lapse-morphokinetics-and-apoptosis-in-associated-cumulus-cells-among-women-with-the-polycystic-ovarian-syndrome
#4
Nasim Tabibnejad, Abbas Aflatoonian, Leila Motamedzadeh, Mehrdad Soleimani, Fatemeh Sadeghian-Nodoushan, Ali Reza Talebi
Cumulus cells features and embryo developmental events can be considered as non-invasive indicators for embryo selection and clinical outcomes. A combination of time-lapse morphokinetic parameters and cumulus cell apoptosis in women with polycystic ovarian syndrome (PCOS) was evaluated for predicting pregnancy outcome. We assessed a total of 547 embryos from 100 intracytoplasmic sperm injection (ICSI) cycles. Time-lapse records were interpreted in time to pronuclear fading (tPNf), time to 2 to 8 cells (t2-t8), direct cleavage, reverse cleavage, and also for the presence of multinucleation...
July 11, 2018: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29932617/external-validation-of-a-time-lapse-model-a-retrospective-study-comparing-embryo-evaluation-using-a-morphokinetic-model-to-standard-morphology-with-live-birth-as-endpoint
#5
Emma Adolfsson, Sandra Porath, Anna Nowosad Andershed
OBJECTIVE: To validate a morphokinetic implantation model developed for EmbryoScope on embryos with known outcome, compared to standard morphology in a retrospective single center study. METHODS: Morphokinetic annotation of 768 embryos with known outcome between 2013 -2015; corresponding to 116 D3 fresh embryos, 80 D6 frozen blastocysts, and 572 D5 blastocysts, fresh or frozen. The embryos were ranked by the KIDScore into five classes, KID1-5, and grouped into four classes based on standard morphology...
June 22, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29912521/morphology-vs-morphokinetics-a-retrospective-comparison-of-inter-observer-and-intra-observer-agreement-between-embryologists-on-blastocysts-with-known-implantation-outcome
#6
Emma Adolfsson, Anna Nowosad Andershed
OBJECTIVE: Our primary aim was to compare the morphology and morphokinetics on inter- and intra-observer agreement for blastocyst with known implantation outcome. Our secondary aim was to validate the morphokinetic parameters' ability to predict pregnancy using a previous published selection algorithm, and to compare this to standard morphology assessments. METHODS: Two embryologists made independent blinded annotations on two occasions using time-lapse images and morphology evaluations using the Gardner Schoolcraft criteria of 99 blastocysts with known implantation outcome...
June 18, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29882361/influence-of-human-sperm-origin-testicular-or-ejaculated-on-embryo-morphokinetic-development
#7
Filomena Scarselli, Valentina Casciani, Elisabetta Cursio, Saverio Muzzì, Alessandro Colasante, Simona Gatti, Maria Chiara Greco, Pierfrancesco Greco, Maria Giulia Minasi, Ermanno Greco
In this retrospective observational study (October 2014 - July 2016), the impact of sperm origin on embryo morphokinetics and on clinical outcomes after intracytoplasmic sperm injection was evaluated. The developmental kinetics of embryos obtained either with testicular sperm (40 cycles; testicular sperm group) or with thawed donor sperm (26 cycles; donor sperm group) was analysed up to day-3 of culture with a time-lapse incubation system. In the testicular sperm group, all patients were affected by nonobstructive azoospermia...
June 8, 2018: Andrologia
https://www.readbyqxmd.com/read/29790071/impact-of-polar-body-biopsy-on-embryo-morphokinetics-back-to-the-roots-in-preimplantation-genetic-testing
#8
Michael Schenk, Andrea Groselj-Strele, Katharina Eberhard, Elisabeth Feldmeier, Darja Kastelic, Stefanie Cerk, Gregor Weiss
PURPOSE: Polar body biopsy (PBB) is a common technique in preimplantation genetic testing (PGT) to assess the chromosomal status of the oocyte. Numerous studies have been implemented to investigate the impact of biopsies on embryo development; however, information on embryo morphokinetics is still lacking. Hence, we investigated the impact of PBB on morphokinetic parameters in early embryo development. METHODS: Four hundred four embryos (202 PBB, 202 control) were retrospectively analyzed...
May 22, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29785530/azoospermia-and-embryo-morphokinetics-testicular-sperm-derived-embryos-exhibit-delays-in-early-cell-cycle-events-and-increased-arrest-prior-to-compaction
#9
Nina Desai, Pavinder Gill, Nicholas N Tadros, Jeffrey M Goldberg, Edmund Sabanegh, Tommaso Falcone
PURPOSE: Sperm play an essential role in embryonic genome activation and embryonic progression to blastocyst. In the present work, we focus on development of embryos created as a result of ICSI with testicular or epididymal sperm from azoospermic males and compare this to outcomes from normospermic males. The objective of this study was to determine if sperm origin influences clinical outcomes, the kinetics of embryo development, or the incidence of cleavage anomalies and multinucleation...
July 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29664791/embryo-morphokinetic-characteristics-and-euploidy
#10
Francesca Pennetta, Cristina Lagalla, Andrea Borini
PURPOSE OF REVIEW: The purpose of the current review is to provide an update on time-lapse morphokinetic assessment related to embryo ploidy status. RECENT FINDINGS: The main limitation of the available studies regarding correlation between morphokinetic variables and ploidy is that each embryo is considered as an independent unit whereas recent findings show that embryo kinetics may be affected by patient and ovarian stimulation-related factors, so that clustered data analysis is more appropriate...
June 2018: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29662827/retrospective-study-of-single-vitrified-warmed-blastocyst-transfer-cycles-according-to-the-presence-of-morphokinetic-variables
#11
Yong Soo Hur, Eun Kyung Ryu, Chang Seop Hyun, Seong Ho Yang, San Hyun Yoon, Kyung Sil Lim, Won Don Lee, Jin Ho Lim
This study retrospectively assessed whether time-lapse data relating to developmental timing and morphology were associated with clinical outcomes, with the eventual goal of using morphokinetic variables to select embryos prospectively for cryopreservation. In this study, we examined the clinical outcomes of single vitrified-warmed blastocyst transfer cycles that were cultured in a time-lapse incubation system. The morphokinetic variables included uneven pronuclei, an uneven blastomere, multinucleation, and direct, rapid, and irregular division...
March 2018: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/29551013/the-interval-transfer-of-a-frozen-thawed-embryo-is-more-successful-than-a-fresh-embryo-transfer-for-women-undergoing-ivf-with-recurrent-implantation-failure-after-cleavage-stage-embryo-biopsy
#12
Jennifer C Pontré, John P Ryan, Andy Tan, Roger J Hart
BACKGROUND: Recurrent implantation failure (RIF) is repeated unsuccessful embryo transfers (ETs). AIMS: To identify predictive embryonic markers of implantation in RIF, following pre-implantation genetic screening (PGS) of cleavage stage embryos, after accounting for male and female factors. MATERIALS AND METHODS: Retrospective analysis of RIF patients undergoing PGS after correction of modifiable causes. RESULTS: Eighty-four patients underwent 140 in vitro ferilisation cycles...
March 18, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29527703/is-there-any-correlation-between-sperm-parameters-and-chromatin-quality-with-embryo-morphokinetics-in-patients-with-male-infertility
#13
E Mangoli, M A Khalili, A R Talebi, S Ghasemi-Esmailabad, A Hosseini
The main goal was to evaluate the correlation between sperm parameters and chromatin quality with embryo kinetics via time-lapse monitoring system (TLM). A total of 40 couples involved in the ICSI program as a result of male infertility. For assessment of sperm chromatin and DNA quality, we used aniline blue, toluidine blue, chromomycin A3, acridine orange and terminal transferase-mediated deoxyuridine triphosphate biotin end labelling assays. All mature oocytes were injected, and the generated zygotes (2PNs) were cultured in TLM...
June 2018: Andrologia
https://www.readbyqxmd.com/read/29458909/effect-of-morphokinetics-and-morphological-dynamics-of-cleavage-stage-on-embryo-developmental-potential-a-time-lapse-study
#14
Shiao-Hsuan Yang, Cheng-Hsuan Wu, Yu-Ching Chen, Chueh-Ko Yang, Tsui-Huang Wu, Pei-Chi Chen, Horng-Der Tsai
OBJECTIVE: Using a non-invasive method to select the most competent embryo is essential in in vitro fertilization (IVF). Since the beginning of clinical application of time-lapse technology, several studies have proposed models using the time-lapse imaging system for predicting the IVF outcome. This study used both morphokinetic and morphological dynamic parameters to select embryos with the highest developmental potential. MATERIALS AND METHODS: A total of 23 intracytoplasmic sperm injection treatment cycles with 138 fertilized oocytes were included in this study...
February 2018: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29452698/are-cleavage-anomalies-multinucleation-or-specific-cell-cycle-kinetics-observed-with-time-lapse-imaging-predictive-of-embryo-developmental-capacity-or-ploidy
#15
Nina Desai, Jeffrey M Goldberg, Cynthia Austin, Tommaso Falcone
OBJECTIVE: To determine whether cleavage anomalies, multinucleation, and specific cellular kinetic parameters available from time-lapse imaging are predictive of developmental capacity or blastocyst chromosomal status. DESIGN: Retrospective analysis of prospectively collected data. SETTING: Single academic center. PATIENT(S): A total of 1,478 zygotes from patients with blastocysts biopsied for preimplantation genetic screening were cultured in the EmbryoScope...
April 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29428076/an-automated-blastomere-identification-method-for-the-evaluation-of-day-2-embryos-during-ivf-icsi-treatments
#16
Charalambos Strouthopoulos, George Anifandis
PURPOSE: Evaluation of human embryos is one of the most important challenges in vitro fertilization (IVF) programs. The morphology and the morphokinetic parameters of the early cleaving embryo are of critical clinical importance. This stage spans the first 48 h post-fertilization, in which the embryo is dividing in smaller blastomeres at specific time-points. The morphology, in combination with the symmetry of the blastomeres seems to be powerful features with strong prognostic value for embryo evaluation...
March 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29398421/can-time-lapse-parameters-predict-embryo-ploidy-a-systematic-review
#17
REVIEW
Arnaud Reignier, Jenna Lammers, Paul Barriere, Thomas Freour
Embryo morphology assessment performs relatively poorly in predicting implantation. Embryo aneuploidy screening (PGS) has recently improved, but its clinical value is still debated, and the development of a cheap non-invasive method for the assessment of embryo ploidy status is a highly desirable goal. The growing implementation of time-lapse devices led some teams to test the effectiveness of morphokinetic parameters as predictors of embryo ploidy, with conflicting results. The aim of this study was to conduct a comprehensive review of the literature on the predictive value of morphokinetic parameters for embryo ploidy status...
April 2018: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29391166/a-speculative-outlook-on-embryonic-aneuploidy-can-molecular-pathways-be-involved
#18
REVIEW
Olga Tšuiko, Tatjana Jatsenko, Lalit Kumar Parameswaran Grace, Ants Kurg, Joris Robert Vermeesch, Fredrik Lanner, Signe Altmäe, Andres Salumets
The journey of embryonic development starts at oocyte fertilization, which triggers a complex cascade of events and cellular pathways that guide early embryogenesis. Recent technological advances have greatly expanded our knowledge of cleavage-stage embryo development, which is characterized by an increased rate of whole-chromosome losses and gains, mixoploidy, and atypical cleavage morphokinetics. Embryonic aneuploidy significantly contributes to implantation failure, spontaneous miscarriage, stillbirth or congenital birth defects in both natural and assisted human reproduction...
January 31, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29353449/blastulation-timing-is-associated-with-differential-mitochondrial-content-in-euploid-embryos
#19
Jacqueline R Ho, Nabil Arrach, Katherine Rhodes-Long, Wael Salem, Lynda K McGinnis, Karine Chung, Kristin A Bendikson, Richard J Paulson, Ali Ahmady
PURPOSE: Preimplantation genetic screening (PGS) and assessment of mitochondrial content (MC) are current methods for selection of the best embryos for transfer. Studies suggest that time-lapse morphokinetics (TLM) may also be helpful for selecting embryos more likely to implant. In our study, we sought to examine the relationship between TLM parameters and MC to determine if they could be used adjunctively in embryo selection. We also examined the relationship between MC with ploidy and blastulation...
April 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29172789/morphometric-analysis-of-human-oocytes-using-time-lapse-does-it-predict-embryo-developmental-outcomes
#20
Azita Faramarzi, Mohammad Ali Khalili, Marjan Omidi
The aim of this prospective study was to evaluate the relationship between morphometric parameters of metaphase II (MII) oocytes and the morphokinetic behaviour of subsequent embryos derived by intra-cytoplasmic sperm injection (ICSI). The association between oocyte morphometry: (whole oocyte), ooplasm, width of zona pellucida (ZP) and perivitelline space (PVS) and first polar body (PB) with embryo morphokinetic variables, including time of second PB extrusion (tPB2), pronuclei appearance (tPN), pronuclei fading (tPNf), formation of two to eight cells (t2 to t8) and irregular cleavage events [uneven at two cells stage, cell fusion (Fu) and trichomonas mitoses (TM)] were assessed...
November 24, 2017: Human Fertility: Journal of the British Fertility Society
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