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Fan J, Zhang J, Xu S, Liu H, Lv W, Bi X, Liu Y, Shi W, Zhang Y, Wu X. The predictive value of uterine artery Doppler in the success rate of pregnancy from the first frozen embryo transfer during the implantation window. BMC Pregnancy Childbirth 2023; 23:825. [PMID: 38037011 PMCID: PMC10688035 DOI: 10.1186/s12884-023-06150-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Worldwide, frozen embryo transfer (FET) has become a new strategy for the treatment of infertility. The success of FET is closely related to endometrial receptivity. Does uterine artery Doppler during the implantation window predict pregnancy outcome from the first FET? METHODS A total of 115 retrospectively collected cycles were included in the study, with 64 cycles of clinical pregnancy and 51 cycles of nonclinical pregnancy; There were 99 nonabsent end-diastolic flow (NAEDF) cycles and 16 absent end-diastolic flow (AEDF) cycles. The differences in uterine artery Doppler findings between different pregnancy outcomes were investigated. The clinical pregnancy rate and spontaneous abortion rate in the NAEDF and AEDF groups were compared. The predictive value of uterine artery Doppler during the implantation window in the success rate of pregnancy from the first FET was also investigated. RESULTS Between the clinical pregnancy group and the nonclinical pregnancy group, there were no significant differences in the mean resistance index (mRI) (Z = -1.065, p = 0.287), mean pulsatility index (mPI) (Z = -0.340, p = 0.734), and mean peak systolic/end-diastolic velocity(mS/D) (Z = -0.953, p = 0.341); there were significant differences in the mean peak systolic velocity (mPSV) (Z = -1.982, p = 0.048) and mean end-diastolic velocity (mEDV) (Z = -2.767, p = 0.006). Between the NAEDF and AEDF groups, there was no significant difference in the clinical pregnancy rate (χ2 = 0.003, p = 0.959), and there was a significant difference in the spontaneous abortion rate (χ2 = 3.465, p = 0.019). Compared with uterine artery Doppler alone, its combination with artificial abortion history, waist-to-hip ratio, LH (Luteinizing hormone) of P (Progesterone) administration day, mPSV and mEDV had a higher predictive value regarding clinical pregnancy from the first FET [ROC-AUC 0.782, 95% CI (0.680-0.883) vs. 0.692, 95% CI (0.587-0.797)]. CONCLUSIONS Uterine artery Doppler, particularly mPSV and mEDV during the implantation window, was useful for predicting clinical pregnancy, and AEDF was related to spontaneous abortion in the first trimester. Uterine artery Doppler combined with artificial abortion history, waist-to-hip ratio, LH of P administration day, mPSV and mEDV have a higher predictive value than uterine artery Doppler alone regarding the pregnancy from the first FET.
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Affiliation(s)
- Junmei Fan
- Department of Reproductive Medicine Center, Children's Hospital of Shanxi and Women Health Center of Shanxi, Affiliated of Shanxi Medical University, Taiyuan, Shanxi, China.
| | - Junkun Zhang
- Department of Intensive Care Unit, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, Shanxi, China
| | - Suming Xu
- Department of Reproductive Medicine Center, Children's Hospital of Shanxi and Women Health Center of Shanxi, Affiliated of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Huiping Liu
- Department of Reproductive Medicine Center, Children's Hospital of Shanxi and Women Health Center of Shanxi, Affiliated of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Weigang Lv
- Department of Obstetrics and Gynecology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xingyu Bi
- Department of Reproductive Medicine Center, Children's Hospital of Shanxi and Women Health Center of Shanxi, Affiliated of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yanling Liu
- Department of Reproductive Medicine Center, Children's Hospital of Shanxi and Women Health Center of Shanxi, Affiliated of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Wenjing Shi
- Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yuxia Zhang
- Department of Reproductive Medicine Center, Children's Hospital of Shanxi and Women Health Center of Shanxi, Affiliated of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xueqing Wu
- Department of Reproductive Medicine Center, Children's Hospital of Shanxi and Women Health Center of Shanxi, Affiliated of Shanxi Medical University, Taiyuan, Shanxi, China.
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Youngster M, Luz A, Baum M, Hourvitz R, Reuvenny S, Maman E, Hourvitz A. Artificial intelligence in the service of intrauterine insemination and timed intercourse in spontaneous cycles. Fertil Steril 2023; 120:1004-1012. [PMID: 37490977 DOI: 10.1016/j.fertnstert.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 07/06/2023] [Accepted: 07/18/2023] [Indexed: 07/27/2023]
Abstract
OBJECTIVE To develop a machine learning model designed to predict the time of ovulation and optimal fertilization window for performing intrauterine insemination or timed intercourse (TI) in natural cycles. DESIGN A retrospective cohort study. SETTING A large in vitro fertilization unit. PATIENT(S) Patients who underwent 2,467 natural cycle-frozen embryo transfer cycles between 2018 and 2022. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Prediction accuracy of the optimal day for performing insemination or TI. RESULT(S) The data set was split into a training set including 1,864 cycles and 2 test sets. In the test sets, ovulation was determined according to either expert opinion, with 2 independent fertility experts determining ovulation day ("expert") (496 cycles), or according to the disappearance of the leading follicle between 2 consecutive days' ultrasound examinations ("certain ovulation") (107 cycles). Two algorithms were trained: an NGBoost machine learning model estimating the probability of ovulation occurring on each cycle day and a treatment management algorithm using the learning model to determine an optimal insemination day or whether another blood test should be performed. The estradiol progesterone and luteinizing hormone levels on the last test performed were the most influential features used by the model. The mean numbers of tests were 2.78 and 2.85 for the "certain ovulation" and "expert" test sets, respectively. In the "expert" set, the algorithm correctly predicted ovulation and suggested day 1 or 2 for performing insemination in 92.9% of the cases. In 2.9%, the algorithm predicted a "miss," meaning that the last test day was already ovulation day or beyond, suggesting avoiding performing insemination. In 4.2%, the algorithm predicted an "error," suggesting performing insemination when in fact it would have been performed on a nonoptimal day (0 or -3). The "certain ovulation" set had similar results. CONCLUSION(S) To our knowledge, this is the first study to implement a machine learning model, on the basis of the blood tests only, for scheduling insemination or TI with high accuracy, attributed to the capability of the algorithm to integrate multiple factors and not rely solely on the luteinizing hormone surge. Introducing the capabilities of the model may improve the accuracy and efficiency of ovulation prediction and increase the chance of conception. CLINICAL TRIAL REGISTRATION NUMBER HMC-0008-21.
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Affiliation(s)
- Michal Youngster
- IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel.
| | | | - Micha Baum
- Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel; FertilAi, Ramat Gan, Israel; IVF Unit, Herzliya Medical Centre, Herzliya, Israel; IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, Israel
| | | | | | - Ettie Maman
- Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel; FertilAi, Ramat Gan, Israel; IVF Unit, Herzliya Medical Centre, Herzliya, Israel; IVF Unit, Department of Obstetrics and Gynecology, Sheba Medical Center, Ramat-Gan, Israel
| | - Ariel Hourvitz
- IVF Unit, Department of Obstetrics and Gynecology, Shamir Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel; FertilAi, Ramat Gan, Israel
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Zaat T, de Bruin JP, Goddijn M, van Baal M, Benneheij S, Brandes M, Broekmans F, Cantineau A, Cohlen B, van Disseldorp J, Gielen S, Groenewoud E, van Heusden A, Kaaijk E, Koks C, de Koning C, Klijn N, van der Linden P, Manger P, Moolenaar L, van Oppenraaij R, Pieterse Q, Smeenk J, Visser J, van Wely M, Mol F. Home-based monitoring of ovulation to time frozen embryo transfers in the Netherlands (Antarctica-2): an open-label, nationwide, randomised, non-inferiority trial. Lancet 2023; 402:1347-1355. [PMID: 37678290 DOI: 10.1016/s0140-6736(23)01312-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/02/2023] [Accepted: 06/22/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND The growing field of assisted reproductive techniques, including frozen-thawed embryo transfer (FET), should lead the way to the best sustainable health care without compromising pregnancy chances. Correct timing of FET is crucial to allow implantation of the thawed embryo. Nowadays, timing based on hospital-controlled monitoring of ovulation in the natural cycle of a woman is the preferred strategy because of the assumption of favourable fertility prospects. However, home-based monitoring is a simple method to prevent patient travel and any associated environmental concerns. We compared ongoing pregnancy rates after home-based monitoring versus hospital-controlled monitoring with ovulation triggering. METHODS This open-label, multicentre, randomised, non-inferiority trial was undertaken in 23 hospitals and clinics in the Netherlands. Women aged between 18 and 44 years with a regular ovulatory menstrual cycle were randomly assigned in a 1:1 ratio via a web-based randomisation program to home-based monitoring or hospital-controlled monitoring. Those who analysed the data were masked to the groups; those collecting the data were not. All endpoints were analysed by intention to treat and per protocol. Non-inferiority was established when the lower limit of the 90% CI exceeded -4%. This study was registered at the Dutch Trial Register (Trial NL6414). FINDINGS 1464 women were randomly assigned between April 10, 2018, and April 13, 2022, with 732 allocated to home-based monitoring and 732 to hospital-controlled monitoring. Ongoing pregnancy occurred in 152 (20·8%) of 732 in the home-based monitoring group and in 153 (20·9%) of 732 in the hospital-controlled monitoring group (risk ratio [RR] 0·99 [90% CI 0·81 to 1·22]; risk difference [RD] -0·14 [90% CI -3·63 to 3·36]). The per-protocol analysis confirmed non-inferiority (152 [21·0%] of 725 vs 153 [21·0%] of 727; RR 1·00 (90% CI 0·81 to 1·23); RD -0·08 [90% CI -3·60 to 3·44]). INTERPRETATION Home-based monitoring of ovulation is non-inferior to hospital-controlled monitoring of ovulation to time FET. FUNDING The Dutch Organisation for Health Research and Development.
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Affiliation(s)
- Tjitske Zaat
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; Amsterdam Reproduction and Development Research Institute, Amsterdam, Netherlands
| | - Jan-Peter de Bruin
- Department of Obstetrics and Gynaecology, Jeroen Bosch Ziekenhuis, 's-Hertogenbosch, Netherlands
| | - Mariëtte Goddijn
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; Amsterdam Reproduction and Development Research Institute, Amsterdam, Netherlands
| | - Marchien van Baal
- Department of Obstetrics and Gynaecology, Flevoziekenhuis, Almere, Netherlands
| | - Sofie Benneheij
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, Netherlands
| | - Monique Brandes
- Centre for Reproductive Medicine Nij Geertgen, Elsendorp, Netherlands
| | - Frank Broekmans
- Department of Reproductive Medicine, University Medical Centre Utrecht, Utrecht, Netherlands
| | - Astrid Cantineau
- Centre for Reproductive Medicine, University Medical Centre Groningen, Groningen, Netherlands
| | - Ben Cohlen
- Isala Fertility Centre, Isala Clinics, Zwolle, Netherlands
| | - Jeroen van Disseldorp
- Department of Obstetrics and Gynaecology, Sint Antonius Hospital, Nieuwegein, Netherlands
| | - Susanne Gielen
- Department of Obstetrics and Gynaecology, Franciscus Hospital, Rotterdam, Netherlands
| | - Eva Groenewoud
- Department of Obstetrics and Gynaecology, Noordwest Ziekenhuisgroep, Den Helder, Netherlands
| | | | - Eugenie Kaaijk
- Department of Obstetrics and Gynaecology, OLVG, Amsterdam, Netherlands
| | - Carolien Koks
- Department of Obstetrics and Gynaecology, Maxima Medical Centre, Veldhoven, Netherlands
| | - Corry de Koning
- Department of Obstetrics and Gynaecology, Tergooi Medical Centre, Blaricum, Netherlands
| | - Nicole Klijn
- Reproductive Centre, Leiden University Medical Centre, Leiden, Netherlands
| | - Paul van der Linden
- Department of Obstetrics and Gynaecology, Deventer Hospital, Deventer, Netherlands
| | - Petra Manger
- Department of Obstetrics and Gynaecology, Diakonessenhuis, Utrecht, Netherlands
| | - Lobke Moolenaar
- Department of Obstetrics and Gynaecology, Amsterdam UMC, Vrije Universiteit Amsterdam, Centre for Reproductive Medicine, Amsterdam, Netherlands
| | | | - Quirine Pieterse
- Department of Obstetrics and Gynaecology, Haga Ziekenhuis, Den Haag, Netherlands
| | - Jesper Smeenk
- Department of Obstetrics and Gynaecology, Elisabeth-TweeSteden Ziekenhuis, Tilburg, Netherlands
| | - Jantien Visser
- Department of Obstetrics and Gynaecology, Amphia Ziekenhuis, Breda, Netherlands
| | - Madelon van Wely
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; Amsterdam Reproduction and Development Research Institute, Amsterdam, Netherlands
| | - Femke Mol
- Department of Obstetrics and Gynaecology, Centre for Reproductive Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; Amsterdam Reproduction and Development Research Institute, Amsterdam, Netherlands.
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Zhang Y, Fu X, Gao S, Gao S, Gao S, Ma J, Chen ZJ. Preparation of the endometrium for frozen embryo transfer: an update on clinical practices. Reprod Biol Endocrinol 2023; 21:52. [PMID: 37291605 DOI: 10.1186/s12958-023-01106-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/23/2023] [Indexed: 06/10/2023] Open
Abstract
Over the past decade, the application of frozen-thawed embryo transfer treatment cycles has increased substantially. Hormone replacement therapy and the natural cycle are two popular methods for preparing the endometrium. Hormone replacement therapy is now used at the discretion of the doctors because it is easy to coordinate the timing of embryo thawing and transfer with the schedules of the in-vitro fertilization lab, the treating doctors, and the patient. However, current results suggest that establishing a pregnancy in the absence of a corpus luteum as a result of anovulation may pose significant maternal and fetal risks. Therefore, a 'back to nature' approach that advocates an expanded use of natural cycle FET in ovulatory women has been suggested. Currently, there is increasing interest in how the method of endometrial preparation may influence frozen embryo transfer outcomes specifically, especially when it comes to details such as different types of ovulation monitoring and different luteal support in natural cycles, and the ideal exogenous hormone administration route as well as the endocrine monitoring in hormone replacement cycles. In addition to improving implantation rates and ensuring the safety of the fetus, addressing these points will allow for individualized endometrial preparation, also as few cycles as possible would be canceled.
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Affiliation(s)
- Yiting Zhang
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Xiao Fu
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Shuli Gao
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Shuzhe Gao
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Shanshan Gao
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China.
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China.
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China.
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China.
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China.
| | - Jinlong Ma
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, Shandong, China
- Shandong Key Laboratory of Reproductive Medicine, Jinan, 250012, Shandong, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, Shandong, China
- Shandong Technology Innovation Center for Reproductive Health, Jinan, 250012, Shandong, China
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, Shandong, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200135, China
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200135, China
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Jiang WJ, Sun ZG, Song JY. Premature timing of progesterone luteal phase support initiation did not negatively impact live birth rates in modified natural frozen thawed embryo transfer cycles. Heliyon 2023; 9:e13218. [PMID: 36793963 PMCID: PMC9922970 DOI: 10.1016/j.heliyon.2023.e13218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/20/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
Study question In a modified natural cycle frozen-thawed embryo transfer (mNC-FET), does the premature timing of progesterone luteal phase support (LPS) initiation 24 h following human chorionic gonadotropin (hCG) trigger impact live birth? Summary answer Premature LPS initiation did not negatively affect the live birth rate (LBR) in mNC-FET cycles compared with conventional LPS initiation 48 h after hCG triggering. What is known already During natural cycle FET, human chorionic gonadotropin is routinely used to mimic endogenous luteinizing hormone (LH) surge to induce ovulation, which allows more flexibility in embryo transfer scheduling, thus relieving the burden of multiple visits by patients and laboratory workloads, which is also known as mNC-FET. Moreover, recent data demonstrates that ovulatory women undergoing natural cycle FETs have a lower risk of maternal and fetal complications due to the essential role of the corpus luteum in implantation, placentation and pregnancy maintenance. While several studies have confirmed the positive effects of LPS in mNC-FETs, the timing of progesterone LPS initiation is still unclear, as compared with fresh cycles where robust research has been conducted. To the best of our knowledge, no clinical studies comparing different beginning days in mNC-FET cycles have been published. Study design size duration This retrospective cohort study involved 756 mNC-FET cycles performed at a university-affiliated reproductive center between January 2019 and August 2021. The primary outcome measured was the LBR. Participants/materials setting methods Ovulatory women ≤42 years of age who were referred for their autologous mNC-FET cycles were included in the study. According to the timing of progesterone LPS initiation following the hCG trigger, patients were assigned into two categories: premature LPS group (progesterone initiation 24 h after hCG trigger, n = 182) versus conventional LPS group (progesterone initiation 48 h after hCG trigger, n = 574). Multivariate logistic regression analysis was used to control for confounding variables. Main results and the role of chance There were no differences in background characteristics between the two study groups, except for the proportion of assisted hatching (53.8% in premature LPS group versus 42.3% in conventional LPS group, p = 0.007). In the premature LPS group, 56 of 182 patients (30.8%) had a live birth, compared to 179 of 574 patients (31.2%) in the conventional LPS group, with no significant difference observed between groups (adjusted odds ratio [aOR] 0.98, 95% confidence interval [CI] 0.67-1.43, p = 0.913). In addition, there was no significant difference between the two groups in other secondary outcomes. A sensitivity analysis for LBR according to the serum LH and progesterone levels on hCG trigger day also confirmed the aforementioned findings. Limitations reasons for caution In this study, retrospective analysis was conducted in a single center and was therefore prone to bias. Additionally, we did not anticipate monitoring the patient's follicle rupture and ovulation after hCG triggering. Future prospective clinical trials remain necessary to confirm our results. Wider implications of the findings While exogenous progesterone LPS was added 24 h after hCG triggering, embryo-endometrium synchrony would not be adversely affected so long as sufficient time was allowed for endometrial exposure to exogenous progesterone. Our data support promising clinical outcomes following this event. As a result of our findings, clinicians and patients will be able to make better informed decisions. Study funding/competing interests No specific funding was available for this study. The authors have no personal conflicting interests to declare. Trial registration number N/A.
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Affiliation(s)
- Wen-Jing Jiang
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhen-Gao Sun
- Reproductive Center of Integrated Medicine, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China,Corresponding author.
| | - Jing-Yan Song
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China,Reproductive Center of Integrated Medicine, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China,Corresponding author. The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China.
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Farid Mojtahedi M, Aref S, Moini A, Maleki-Hajiagha A, Kashani L. Natural cycle versus modified natural cycle for endometrial preparation in women undergoing frozen-thawed embryo transfer: An RCT. Int J Reprod Biomed 2022; 20:923-930. [PMID: 36618837 PMCID: PMC9806241 DOI: 10.18502/ijrm.v20i11.12359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 01/26/2022] [Accepted: 05/23/2022] [Indexed: 12/15/2022] Open
Abstract
Background Studies have evaluated different endometrial preparation methods, but the optimal frozen-thawed embryo transfer (FET) cycle strategy in terms of the in-vitro fertilization outcome is still debated. Objective To compare the natural versus modified natural cycles for endometrial preparation in women undergoing FET. Materials and Methods This study was designed as a randomized clinical trial, and it was performed at the Arash women's hospital between August 2016-2018. Hundred and forty eligible participants were enrolled in this study and were randomly divided into 2 groups by using the block randomization method, including true natural FET (n = 70) and modified natural FET (mNFET) (n = 70) cycles. Both groups were monitored for endometrial thickness and follicular size; simultaneously spontaneous luteinizing hormone surge using urinary luteinizing hormone testing kits. The mNFET group received 5000 IU of human chorionic gonadotropin injection to trigger final follicular maturation. Luteal support by vaginal progesterone (cyclogest 400 mg twice daily) was used in true natural FET from the day of transfer until the 10 th wk of pregnancy. Chemical and clinical pregnancy and abortion rates were considered as the primary outcomes. Results There were no differences in the participants' baseline characteristics between groups. There was no difference in clinical pregnancy and abortion rate between groups, while the implantation rate was significantly higher in the mNFET group (29.2% vs. 17.6%; p = 0.036). Conclusion The results demonstrated that both types of natural cycles were similar in pregnancy outcomes, while modified cycles might be associated with a higher implantation rate.
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Affiliation(s)
- Maryam Farid Mojtahedi
- Endocrinology and Female Infertility Unit, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeedeh Aref
- Endocrinology and Female Infertility Unit, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ashraf Moini
- Endocrinology and Female Infertility Unit, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Arezoo Maleki-Hajiagha
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Research Development Center, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ladan Kashani
- Endocrinology and Female Infertility Unit, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
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Aydin T, Namli Kalem M, Bakirarar B, Aygun EG, Kalem Z. Comparing the success rate of natural cycle and modified natural cycle protocols for frozen-thawed embryo transfer. Gynecol Endocrinol 2022; 38:1073-1078. [PMID: 36220075 DOI: 10.1080/09513590.2022.2128747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
Objective: The aim of the present study is to compare the effects of Natural Cycle and modified Natural Cycle protocols for frozen-thawed embryo transfer on clinical pregnancy rate and live birth rate. Methods: This prospective randomized controlled trial comprised 145 patients scheduled for frozen-thawed embryo transfer and was conducted at a university hospital between 2019 and 2021. The Natural Cycle protocol was administered to 73 patients and the modified Natural Cycle protocol to 72 patients and the clinical outcome was compared between the groups. The main outcome measure was live birth rate. Results: Baseline characteristics and cycle parameters were similar in both groups. There was no difference in clinical pregnancy rate (58.9% and 54.2%, respectively; p = .565) and live birth rate between the Natural Cycle and modified Natural Cycle groups (49.3% and 48.6% respectively; p = .932). Conclusion: This study established that clinical pregnancy and live birth rates were not affected by natural cycle ovulation being spontaneous or hCG-triggered among patients undergoing frozen-thawed embryo transfer. Thus, the protocol for natural cycle frozen-thawed embryo transfers should be chosen according to the priorities of the patient and the physician.
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Affiliation(s)
- Turgut Aydin
- Department of IVF, Acıbadem University Atakent Hospital, Istanbul, Turkey
| | - Muberra Namli Kalem
- Department of IVF, Istinye University Liv Bahcesehir Hospital, Istanbul, Turkey
| | - Batuhan Bakirarar
- Department of Biostatistics, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Elif Ganime Aygun
- Department of IVF, Acıbadem University Atakent Hospital, Istanbul, Turkey
| | - Ziya Kalem
- Department of IVF, Istinye University Liv Bahcesehir Hospital, Istanbul, Turkey
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8
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Ye H, Shi L, Quan X, Xue X, Qian Y, Tian H, Xue S, Sun L. Frozen-thawed embryo transfer in modified natural cycles: a retrospective analysis of pregnancy outcomes in ovulatory women with vs. without spontaneous luteinizing hormone surge. BMC Pregnancy Childbirth 2022; 22:814. [PMCID: PMC9635083 DOI: 10.1186/s12884-022-05161-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
Abstract
Background Timing of frozen embryo transfer (FET) in natural endometrial preparation cycles is often based on luteinizing hormone (LH) surge. However, some patients do not show spontaneous LH surge despite follicular maturation. The objective of this study was to evaluate the impact of spontaneous LH surge on pregnancy outcomes in modified natural cycles (mNC). Methods This retrospective analysis included 1897 FET cycles with modified natural endometrial preparation in normo-ovulatory women between January 1, 2015, to December 31, 2019, at our center: 920 cycles with spontaneous LH surge (≥ 20 IU/L) and 977 without. For cleavage embryos, FET was conducted 4 and 5 days after hCG injection in women with and without LH surge, respectively. For blastocysts, FET was conducted 6 and 7 days after hCG injection in women with and without LH surge, respectively. Multivariate regression was conducted to examine the factors associated with live birth. Results Live birth rate was 43.7% in patients with spontaneous LH surge vs. 43.8% in women without LH surge (P = 0.961). The two groups also had similar implantation rate (36.2% vs. 36.7%, P = 0.772), biochemical pregnancy rate (54.8% vs. 55.4%, P = 0.796) and clinical pregnancy rate (50.9% vs. 51.7%, P = 0.721). In multivariate regression, live birth was not associated with LH surge (aOR, 0.947, 95% CI, 0.769, 1.166). Conclusion Pregnancy outcomes were similar in mNC-FET in cycles with vs. without spontaneous LH surge if FET timing is adjusted.
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Affiliation(s)
- Hongjuan Ye
- grid.24516.340000000123704535School of Life Sciences and Technology, Tongji University, Shanghai, China ,grid.24516.340000000123704535Department of Reproductive Medicine Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Liya Shi
- grid.24516.340000000123704535Department of Reproductive Medicine Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xinxin Quan
- grid.24516.340000000123704535Department of Reproductive Medicine Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xue Xue
- grid.24516.340000000123704535Department of Reproductive Medicine Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ying Qian
- grid.24516.340000000123704535Department of Reproductive Medicine Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hui Tian
- grid.24516.340000000123704535Department of Reproductive Medicine Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Songguo Xue
- grid.24516.340000000123704535Department of Reproductive Medicine Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lihua Sun
- grid.24516.340000000123704535Department of Reproductive Medicine Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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9
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Can sperm quality influence embryo development and its ploidy? Analysis of 811 blastocysts obtained from different sperm sources. ZYGOTE 2022; 30:648-655. [PMID: 35677962 DOI: 10.1017/s0967199422000119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The aim of our study was to evaluate the correlation between sperm quality and ploidy status of the derived blastocysts. We performed a retrospective analysis on a restricted pool of patients enrolling only those who had no female factors. Male patients with genetic factors affecting spermatogenesis were also excluded. We chose a maternal age ≤38 years to decrease the female factor, therefore the male factor was the main component of sterility. We divided the patients in four groups based on semen quality and comparing fertilization, pregnancy and euploidy rates above all. In total, 201 intracytoplasmic sperm injection (ICSI) cycles were enrolled in the study. Cycles were divided into four groups, according to semen source: normal semen, oligoasthenoteratozoospermia (OAT), cryptospermia or non-obstructive azoospermia (NOA). An extremely statistically lower fertilization rate was found in NOA patients. Unexpectedly, no differences were detected in blastocyst formation, euploidy, aneuploidy and mosaicism rates among the four groups. Interestingly, we also found a higher abortion rate comparing NOA to normal semen with an odds ratio of 4.67. In our study no statistically significant differences among the analyzed groups were found, showing little or no effect at all using spermatozoa from different semen sources or quality. This may be linked to the oocyte competence of fixing sperm DNA damage and it could be hypothesized that only sperm with a good rate of DNA integrity are able to fertilize the oocyte, explaining why poor quality semen is reflected in a low fertilization rate without effect on ploidy.
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10
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Asymmetric Contribution of Blastomere Lineages of First Division of the Zygote to Entire Human Body Using Post-Zygotic Variants. Tissue Eng Regen Med 2022; 19:809-821. [PMID: 35438457 PMCID: PMC9294097 DOI: 10.1007/s13770-022-00443-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/02/2022] [Accepted: 02/13/2022] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND In humans, after fertilization, the zygote divides into two 2n diploid daughter blastomeres. During this division, DNA is replicated, and the remaining mutually exclusive genetic mutations in the genome of each cell are called post-zygotic variants. Using these somatic mutations, developmental lineages can be reconstructed. How these two blastomeres are contributing to the entire body is not yet identified. This study aims to evaluate the cellular contribution of two blastomeres of 2-cell embryos to the entire body in humans using post-zygotic variants based on whole genome sequencing. METHODS Tissues from different anatomical areas were obtained from five donated cadavers for use in single-cell clonal expansion and bulk target sequencing. After conducting whole genome sequencing, computational analysis was applied to find the early embryonic mutations of each clone. We developed our in-house bioinformatics pipeline, and filtered variants using strict criteria, composed of mapping quality, base quality scores, depth, soft-clipped reads, and manual inspection, resulting in the construction of embryological phylogenetic cellular trees. RESULTS Using our in-house pipeline for variant filtering, we could extract accurate true positive variants, and construct the embryological phylogenetic trees for each cadaver. We found that two daughter blastomeres, L1 and L2 (lineage 1 and 2, respectively), derived from the zygote, distribute unequally to the whole body at the clonal level. From bulk target sequencing data, we validated asymmetric contribution by means of the variant allele frequency of L1 and L2. The asymmetric contribution of L1 and L2 varied from person to person. CONCLUSION We confirmed that there is asymmetric contribution of two daughter blastomeres from the first division of the zygote across the whole human body.
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11
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Huang C, Shen X, Shi Q, Shan H, Yan Y, Liu J, Kong N. Adverse impact of elevated serum progesterone and luteinizing hormone levels on the hCG trigger day on clinical pregnancy outcomes of modified natural frozen-thawed embryo transfer cycles. Front Endocrinol (Lausanne) 2022; 13:1000047. [PMID: 36531505 PMCID: PMC9751419 DOI: 10.3389/fendo.2022.1000047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 11/22/2022] [Indexed: 12/04/2022] Open
Abstract
RESEARCH QUESTION The relationship between serum progesterone (P) and luteinizing hormone (LH) levels on the human chorionic gonadotropin (hCG) trigger day and the clinical pregnancy outcomes in modified natural frozen-thawed embryo transfer (mNC-FET) cycles are controversial. DESIGN This was a retrospective study of 788 mNC-FET cycles. A smooth fitting curve and threshold effect analysis was performed to identify the effect of serum P and LH levels measured on the hCG day on the clinical pregnancy rate (CPR) and live birth rate (LBR) of mNC-FET cycles. RESULTS The CPR and LBR decreased significantly when the LH level on the hCG day was greater than or equal to 32 IU/L. Further subgroup analysis showed that the CPR decreased significantly when the P level on the hCG day was equal to or greater than 1 ng/mL. When the P level was lower (< 1 ng/mL), the patients with an LH level greater than or equal to 32 IU/L had reduced CPR and LBR in mNC-FET cycles. CONCLUSION Applying the hCG trigger on a day with a higher P level (≥ 1 ng/mL) leads to a decreased CPR and LBR. hCG administration with a higher LH level (≥ 32 IU/L) also leads to a decreased CPR and LBR in mNC-FET cycles when the P level is less than 1 ng/mL.
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Affiliation(s)
- Chenyang Huang
- Center for Reproductive Medicine and Obstetrics and Gynecology, Drum Tower Clinic Medical College of Nanjing Medical University, Nanjing, China
- Reproductive Medicine Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Xiaoyue Shen
- Center for Reproductive Medicine and Obstetrics and Gynecology, Drum Tower Clinic Medical College of Nanjing Medical University, Nanjing, China
- Reproductive Medicine Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Qingqing Shi
- Center for Reproductive Medicine and Obstetrics and Gynecology, Drum Tower Clinic Medical College of Nanjing Medical University, Nanjing, China
- Reproductive Medicine Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Huizhi Shan
- Center for Reproductive Medicine and Obstetrics and Gynecology, Drum Tower Clinic Medical College of Nanjing Medical University, Nanjing, China
- Reproductive Medicine Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Yuan Yan
- Center for Reproductive Medicine and Obstetrics and Gynecology, Drum Tower Clinic Medical College of Nanjing Medical University, Nanjing, China
- Reproductive Medicine Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Jingyu Liu
- Center for Reproductive Medicine and Obstetrics and Gynecology, Drum Tower Clinic Medical College of Nanjing Medical University, Nanjing, China
- Reproductive Medicine Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
- *Correspondence: Jingyu Liu, ; Na Kong,
| | - Na Kong
- Center for Reproductive Medicine and Obstetrics and Gynecology, Drum Tower Clinic Medical College of Nanjing Medical University, Nanjing, China
- Reproductive Medicine Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
- *Correspondence: Jingyu Liu, ; Na Kong,
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12
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del Carmen Nogales M, Cruz M, de Frutos S, Martínez EM, Gaytán M, Ariza M, Bronet F, Garcia-Velasco JA. Association between clinical and IVF laboratory parameters and miscarriage after single euploid embryo transfers. Reprod Biol Endocrinol 2021; 19:186. [PMID: 34906128 PMCID: PMC8670289 DOI: 10.1186/s12958-021-00870-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/24/2021] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND The goal of this study was to investigate which factors, excluding embryo aneuploidies, are associated with miscarriage in patients who have undergone a single euploid blastocyst transfer. METHODS Retrospective, observational and multicenter study with 2832 patients undergoing preimplantational genetic testing for aneuploidies (PGT-A) due to repeated implantation failure, recurrent pregnancy loss, advanced maternal age or severe male factor were transferred one single euploid embryo. RESULTS One of the main findings was a significant relationship between body mass index (BMI) and miscarriage rates (13.4% in underweight women, 12.1% in normal weight, 14.5% in overweight, and 19.2% in obese women, odds ratio [OD] 1.04; 95% confidence interval [CI], 1.01-1.07 p = 0.006). Endometrial thickness (OD 0.65; 95%, 0.52-0.77 p = 0.04) and type of endometrial preparation (natural cycle or hormone replacement cycle) (OD 0.77; 95%, 0.52-0.77, p = 0.04) were also associated with miscarriage rates. CONCLUSIONS BMI was strongly associated to miscarriage rates. We also observed a weaker association with endometrial thickness and with the type of endometrial preparation (natural cycle or hormone replacement cycle). None of the other studied variables (biopsy day, maternal and male age, duration of infertility, cycle length, previous miscarriages, previous live births, previous In Vitro Fertilization (IVF) cycles, endometrial pattern and/or diagnosis) were associated with miscarriage rates.
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Affiliation(s)
| | - María Cruz
- IVI Madrid, Av. del Talgo, 68, 28023 Madrid, Spain
| | | | | | - María Gaytán
- IVI Madrid, Av. del Talgo, 68, 28023 Madrid, Spain
| | - Marta Ariza
- IVI Madrid, Av. del Talgo, 68, 28023 Madrid, Spain
| | | | - Juan A. Garcia-Velasco
- IVI Madrid, Av. del Talgo, 68, 28023 Madrid, Spain
- Rey Juan Carlos University, Madrid, Spain
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13
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Gao DD, Li L, Zhang Y, Wang XX, Song JY, Sun ZG. Is Human Chorionic Gonadotropin Trigger Beneficial for Natural Cycle Frozen-Thawed Embryo Transfer? Front Med (Lausanne) 2021; 8:691428. [PMID: 34722559 PMCID: PMC8551612 DOI: 10.3389/fmed.2021.691428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 09/22/2021] [Indexed: 12/02/2022] Open
Abstract
Objective: The aim of this study is to investigate, in ovulatory patients, whether there is a difference in reproductive outcomes following frozen-thawed embryo transfer (FET) in natural cycles (NC) compared to modified natural cycles (mNC). Methods: This retrospective cohort study, performed at the public tertiary fertility clinic, involved all infertile patients undergoing endometrial preparation prior to FET in NC and mNC from January, 2017 to November, 2020. One thousand hundred and sixty-two patients were divided into two groups: mNC group (n = 248) had FET in a NC after ovulation triggering with human chorionic gonadotropin (hCG); NC group (n = 914) had FET in a NC after spontaneous ovulation were observed. The primary outcome was live birth rate. All pregnancy outcomes were analyzed by propensity score matching (PSM) and multivariable logistic regression analyses. Results: The NC group showed a higher live birth rate [344/914 (37.6%) vs. 68/248 (27.4%), P = 0.003; 87/240 (36.3%) vs. 66/240 (27.5%), P = 0.040] than the mNC group before and after PSM analysis. Multivariable analysis also showed mNC to be associated with a decreased likelihood of live birth compared with NC [odds ratio (OR) 95% confidence interval (CI) 0.71 (0.51–0.98), P = 0.039]. Conclusion: For women with regular menstrual cycles, NC-FET may have a higher chance of live birth than that in the mNC-FET cycles. As a consequence, it's critical to avoid hCG triggering as much as possible when FETs utilize a natural cycle strategy for endometrial preparation. Nevertheless, further more well-designed randomized clinical trials are still needed to determine this finding.
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Affiliation(s)
- Dan-Dan Gao
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Li Li
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yi Zhang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiao-Xuan Wang
- Reproductive and Genetic Center of Integrated Medicine, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jing-Yan Song
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China.,Reproductive and Genetic Center of Integrated Medicine, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhen-Gao Sun
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China.,Reproductive and Genetic Center of Integrated Medicine, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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14
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Mumusoglu S, Polat M, Ozbek IY, Bozdag G, Papanikolaou EG, Esteves SC, Humaidan P, Yarali H. Preparation of the Endometrium for Frozen Embryo Transfer: A Systematic Review. Front Endocrinol (Lausanne) 2021; 12:688237. [PMID: 34305815 PMCID: PMC8299049 DOI: 10.3389/fendo.2021.688237] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/23/2021] [Indexed: 11/13/2022] Open
Abstract
Despite the worldwide increase in frozen embryo transfer, the search for the best protocol to prime endometrium continues. Well-designed trials comparing various frozen embryo transfer protocols in terms of live birth rates, maternal, obstetric and neonatal outcome are urgently required. Currently, low-quality evidence indicates that, natural cycle, either true natural cycle or modified natural cycle, is superior to hormone replacement treatment protocol. Regarding warmed blastocyst transfer and frozen embryo transfer timing, the evidence suggests the 6th day of progesterone start, LH surge+6 day and hCG+7 day in hormone replacement treatment, true natural cycle and modified natural cycle protocols, respectively. Time corrections, due to inter-personal differences in the window of implantation or day of vitrification (day 5 or 6), should be explored further. Recently available evidence clearly indicates that, in hormone replacement treatment and natural cycles, there might be marked inter-personal variation in serum progesterone levels with an impact on reproductive outcomes, despite the use of the same dose and route of progesterone administration. The place of progesterone rescue protocols in patients with low serum progesterone levels one day prior to warmed blastocyst transfer in hormone replacement treatment and natural cycles is likely to be intensively explored in near future.
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Affiliation(s)
- Sezcan Mumusoglu
- Department of Obstetrics and Gynecology, Hacettepe University School of Medicine, Ankara, Turkey
| | - Mehtap Polat
- Anatolia IVF and Women Health Centre, Ankara, Turkey
| | | | - Gurkan Bozdag
- Department of Obstetrics and Gynecology, Hacettepe University School of Medicine, Ankara, Turkey
| | | | - Sandro C. Esteves
- Androfert, Andrology and Human Reproduction Clinic, Referral Center for Male Reproduction, Campinas, Brazil
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Peter Humaidan
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- The Fertility Clinic, Skive Regional Hospital Resenvej 25, Skive, Denmark
| | - Hakan Yarali
- Department of Obstetrics and Gynecology, Hacettepe University School of Medicine, Ankara, Turkey
- Anatolia IVF and Women Health Centre, Ankara, Turkey
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15
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Natural cycle versus hormone replacement cycle for transferring vitrified-warmed embryos in eumenorrhoeic women. A retrospective cohort study. Eur J Obstet Gynecol Reprod Biol 2021; 263:94-99. [PMID: 34171636 DOI: 10.1016/j.ejogrb.2021.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 06/02/2021] [Accepted: 06/07/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To compare pregnancy, miscarriage and live birth rates and cycle monitoring parameters between Natural Cycle (NC-FET) and Hormone replacement cycle (HRC-FET) in eumenorrhoeic women undergoing vitrified-warmed autologous embryo transfer. STUDY DESIGN Single-centre retrospective cohort study analyzed 173 NC-FET and 507 HRC-FET cycles with transfer of day2/3/5/6 embryos. Natural cycle monitoring occurred with serial ultrasound with the first day of the scan determined by the shortest cycle frequency. Serum progesterone was ordered when ultrasound was ambiguous in ascertaining ovulation. For HRC-FET oral estradiol valerate was used in fixed or escalating doses with maximum daily dose of 12 mg. Transdermal estradiol gel was added when desired endometrial thickness was not achieved. Vaginal progesterone was introduced with Endometrial thickness(ET)> = 7 mm. Embryos were transferred after stage-appropriate progesterone exposure. Luteal support was given with vaginal progesterone in NC-FET and vaginal and oral progesterone in HRC-FET. Primary outcome was live-birth-rate. Secondary outcomes were ET, length-of-estrogenic-phase, numbers-of-ultrasounds&hormone-monitoring, pregnancy&miscarriage rate. The odds ratio for live-birth was adjusted for age, embryo number, previous-live-births, previous-losses, past-negative-ET-cycles, IVF-indication and embryo-developmental-stage. Quantitative variables were compared using unpaired-t-test and qualitative variables with chi-square test. Two tailed p-value < 0.05 was considered significant. Binary logistic regression was used to calculate adjusted odds for live-births. RESULTS The two cohorts were comparable in age, infertility-duration, previous-live-births, previous-losses, past-negative-ET-cycles, IVF-indication and embryo-developmental-stage. Length-of-estrogenic-phase was significantly shorter for NC-FET than HRC-FET 14.32 ± 2.83vs.18.18 ± 4.48; p = 0.0001) as was mean ultrasound-monitoring-scans (2.73 ± 0.95vs. 3.3 ± 1.04; p = 0.0001). Mean-endometrial-thickness (8.75 ± 1.83vs. 8.5 ± 1.25; p = 0.25) and mean-hormonal-tests (1.75 ± 1.28 vs. 1.88 ± 0.69; p = 0.09) did not differ significantly between NC-FET vs HRC-FET. Significantly higher live births took place in NC-FET vs. HRC-FET (87/173 = 50.3%vs.204/507 = 40.2%;p = 0.026). No significant difference was found in pregnancy rate (66.5% vs. 58%; p = 0.058) or in the pregnancy loss rate (24.3%vs30.6%; p = 0.23). The odds ratio for live-births adjusted for relevant variables was 1.48 (1.03-2.13) in NC-FET compared to HRC-FET. CONCLUSIONS NC-FET is a superior method of endometrial preparation compared to HRC-FET in eumenorrhoeic women since it has a shorter estrogenic phase, reduces patient visits to the hospital and improves live birth rates. Future adequately powered studies should look at antenatal and perinatal outcomes, patient satisfaction rates and cost-effectiveness in the two endometrial preparation regimes.
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16
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Mackens S, Stubbe A, Santos-Ribeiro S, Van Landuyt L, Racca A, Roelens C, Camus M, De Vos M, van de Vijver A, Tournaye H, Blockeel C. To trigger or not to trigger ovulation in a natural cycle for frozen embryo transfer: a randomized controlled trial. Hum Reprod 2021; 35:1073-1081. [PMID: 32395750 DOI: 10.1093/humrep/deaa026] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 02/03/2020] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Is the clinical pregnancy rate (CPR) following a frozen embryo transfer (FET) in a natural cycle (NC) higher after spontaneous ovulation than after triggered ovulation [natural cycle frozen embryo transfer (NC-FET) versus modified NC-FET]? SUMMARY ANSWER The CPR did not vary significantly between the two FET preparation protocols. WHAT IS KNOWN ALREADY Although the use of FET is continuously increasing, the most optimal endometrial preparation protocol is still under debate. For transfer in the NC specifically, conflicting results have been reported in terms of the outcome following spontaneous or triggered ovulation. STUDY DESIGN, SIZE, DURATION In a tertiary hospital setting, subjects were randomized with a 1:1 allocation into two groups between January 2014 and January 2019. Patients in group A underwent an NC-FET, while in group B, a modified NC-FET was performed with a subcutaneous hCG injection to trigger ovulation. In neither group was additional luteal phase support administered. All embryos were vitrified-warmed on Day 3 and transferred on Day 4 of embryonic development. The primary outcome was CPR at 7 weeks. All patients were followed further until 10 weeks of gestation when the ongoing pregnancy rate (OPR) was defined by the observation of foetal cardiac activity on ultrasound scan. Other secondary outcomes included biochemical pregnancy rate, early pregnancy loss and the number of visits, blood samples and ultrasonographic examinations prior to FET. PARTICIPANTS/MATERIALS, SETTING, METHODS A total of 260 patients (130 per study arm) were randomized, of whom 12 withdrew consent after study arm allocation. A total of 3 women conceived spontaneously before initiating the study cycle and 16 did not start for personal or medical reasons. Of the 229 actually commencing monitoring for the study FET cycle, 7 patients needed to be switched to a hormonal replacement treatment protocol due to the absence of follicular development, 12 had no embryo available for transfer after warming and 37 had a spontaneous LH surge before the ovulation trigger could be administered, although they were allocated to group B. Given the above, an intention-to-treat (ITT) analysis was performed taking into account 248 patients (125 in group A and 123 in group B), as well as a per protocol (PP) analysis on a subset of 173 patients (110 in group A and 63 in group B). MAIN RESULTS AND THE ROLE OF CHANCE Demographic features were evenly distributed between the study groups, as were the relevant fresh and frozen ET cycle characteristics. According to the ITT analysis, the CPR and OPR in group A (33.6% and 27.2%, respectively) and group B (29.3% and 24.4%, respectively) did not vary significantly [relative risk (RR) 0.87, 95% CI (0.60;1.26), P = 0.46 and RR 0.90, 95% CI (0.59;1.37), P = 0.61, respectively]. Biochemical pregnancy rate and early pregnancy loss were also found to be not statistically significantly different between the groups. In contrast, more clinic visits and blood samplings for cycle monitoring were required in the NC-FET group (4.05 ± 1.39) compared with the modified NC-FET group (3.03 ± 1.16, P = <0.001), while the number of ultrasound scans performed were comparable (1.70 ± 0.88 in group A versus 1.62 ± 1.04 in group B). The additional PP analysis was in line with the ITT results: CPR in group A was 36.4% versus 38.1% in group B [RR 1.05, 95% CI (0.70;1.56), P = 0.82]. LIMITATIONS, REASONS FOR CAUTION The results are limited by the high drop-out rate for the PP analysis in the modified NC-FET group as more than one-third of the subjects allocated to this group ovulated spontaneously before ovulation triggering. Nonetheless, this issue is inherent to routine clinical practice and is an important observation of an event that can only be avoided by performing a very extensive monitoring that limits the practical advantages associated with modified NC-FET. Furthermore, although this is the largest randomized controlled trial (RCT) investigating this specific research question so far, a higher sample size would allow smaller differences in clinical outcome to be detected, since currently they may be left undetected. WIDER IMPLICATIONS OF THE FINDINGS This RCT adds new high-quality evidence to the existing controversial literature concerning the performance of NC-FET versus modified NC-FET. Based on our results showing no statistically significant differences in clinical outcomes between the protocols, the treatment choice may be made according to the patient's and treating physician's preferences. However, the modified NC-FET strategy reduces the need for hormonal monitoring and may therefore be considered a more patient-friendly and potentially cost-effective approach. STUDY FUNDING/COMPETING INTEREST(S) No specific funding was available for this study. None of the authors have a conflict of interest to declare with regard to this study. TRIAL REGISTRATION NUMBER NCT02145819. TRIAL REGISTRATION DATE 8 January 2014. DATE OF FIRST PATIENT’S ENROLMENT 21 January 2014.
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Affiliation(s)
- S Mackens
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium.,Research Group Reproduction and Immunology (REIM), Vrije Universiteit Brussel (VUB), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - A Stubbe
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - S Santos-Ribeiro
- Valencian Institute of Infertility Reproductive Medicine Associates (IVI-RMA) Lisboa, Avenida Infante Dom Henrique 333 H 1-9, 1800-282 Lisbon, Portugal
| | - L Van Landuyt
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - A Racca
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - C Roelens
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - M Camus
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - M De Vos
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - A van de Vijver
- Fertiliteit, AZ Sint-Jan, Ruddershove 10, 8000 Brugge, Belgium
| | - H Tournaye
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
| | - C Blockeel
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090 Brussels, Belgium
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Mizrachi Y, Horowitz E, Ganer Herman H, Farhi J, Raziel A, Weissman A. Should women receive luteal support following natural cycle frozen embryo transfer? A systematic review and meta-analysis. Hum Reprod Update 2021; 27:643-650. [PMID: 33829269 DOI: 10.1093/humupd/dmab011] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/08/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Spontaneous ovulation during a natural menstrual cycle is frequently used for timing frozen embryo transfer (FET). Nevertheless, it remains unclear whether or not women should receive luteal phase support (LPS) following natural cycle frozen embryo transfer (NC-FET). OBJECTIVE AND RATIONALE The aim of this systematic review and meta-analysis was to study whether the administration of LPS improves the reproductive outcome following NC-FET. SEARCH METHODS We conducted a systematic search of the literature published in Medline/PubMed, Embase and the Cochrane Library, from January 2000 until December 2020. We included all original English, peer-reviewed articles, irrespective of the study design. The search strategy included keywords related to NC-FET and luteal phase support. Studies reporting the results of artificial or stimulated FET cycles were excluded. OUTCOMES Our systematic search generated 416 records. After screening, eight studies were included in the review and seven studies were included in the meta-analysis. Two studies (n = 858) used hCG and six studies (n = 1507) used progesterone for luteal support. Four studies were randomised controlled trials (RCTs), whereas the other four were historic cohort studies. In a meta-analysis using a random effects model, hCG administration for LPS did not increase the clinical pregnancy rate (CPR) (two studies, odds ratio (OR) 0.85, 95% CI 0.64-1.14). On the other hand, progesterone LPS was associated with a higher CPR (five studies, OR 1.48, 95% CI 1.14-1.94), and a higher live birth rate (LBR) (three studies, OR 1.67, 95% CI 1.19-2.36). The association between progesterone LPS and the LBR remained significant after excluding non-randomised studies. WIDER IMPLICATIONS The available evidence indicates that progesterone administration for LPS is beneficial following NC-FET. There is no evidence to support the administration of hCG for LPS in these cases. Additional large RCTs are necessary to improve the quality of evidence and validate our findings.
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Affiliation(s)
- Yossi Mizrachi
- IVF Unit, Department of Obstetrics and Gynecology, Edith Wolfson's Medical Center, Holon, Affiliated with the Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Eran Horowitz
- IVF Unit, Department of Obstetrics and Gynecology, Edith Wolfson's Medical Center, Holon, Affiliated with the Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Hadas Ganer Herman
- IVF Unit, Department of Obstetrics and Gynecology, Edith Wolfson's Medical Center, Holon, Affiliated with the Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Jacob Farhi
- IVF Unit, Department of Obstetrics and Gynecology, Edith Wolfson's Medical Center, Holon, Affiliated with the Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Arieh Raziel
- IVF Unit, Department of Obstetrics and Gynecology, Edith Wolfson's Medical Center, Holon, Affiliated with the Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Ariel Weissman
- IVF Unit, Department of Obstetrics and Gynecology, Edith Wolfson's Medical Center, Holon, Affiliated with the Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
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18
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Weiss A, Baram S, Geslevich Y, Goldman S, Nothman S, Beck-Fruchter R. Should the modified natural cycle protocol for frozen embryo transfer be modified? A prospective case series proof of concept study. Eur J Obstet Gynecol Reprod Biol 2021; 258:179-183. [PMID: 33444812 DOI: 10.1016/j.ejogrb.2021.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/18/2020] [Accepted: 01/04/2021] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Modified natural cycles for frozen embryo transfer utilize an ovulation trigger which assists in embryo transfer scheduling and simplifies cycle monitoring. There have been conflicting results with this protocol and modifications may be sought. We wanted to ascertain whether a modified natural protocol for frozen embryo transfer without triggered ovulation but with luteal progesterone support disconnecting the timing of embryo transfer from the timing of the LH surge can achieve a high pregnancy rate. STUDY DESIGN Candidates for frozen embryo transfer of 48-h cleavage cell embryos were recruited from May 2016 to April 2018. The patients were monitored for endometrial growth, follicle formation and estradiol, progesterone, and LH hormone levels. After meeting the predetermined criteria, embryo transfer was scheduled. The patients began progesterone treatment 48 h before embryo transfer, regardless of identification of the LH surge if ovulation had not commenced. The predetermined primary outcome was the biochemical pregnancy rate while the secondary outcome included the clinical pregnancy rate and the ongoing pregnancy rate. Patients were monitored to the eighth week of pregnancy, but data was collected from the medical records to provide the live birth rate as well. RESULTS Fifty-six women were screened. Eleven women declined or did not meet the inclusion criteria. Three had anovulatory cycles and were excluded. Forty-two women were included in the statistical analysis. The implantation rate was 42.9 % [95 %CI 29.3 %-56.4 %). Of the 42 participants, 25 (59.5 %) conceived [95 % CI 44.0 %-75 %]. Two pregnancies ended in first trimester miscarriage leaving 23 (54.7 %) ongoing pregnancies [95 % CI 39.1 %-70.5 %]. One patient experienced a late abortion such that the live birth rate was 22 of 42 patients or 52.4 % [95 % CI 36.4 %-68.0 %]. CONCLUSION The proposed modified natural protocol which utilizes progesterone luteal support but does not trigger ovulation, maintains a high pregnancy rate while providing flexibility regarding the day of transfer disconnected from the day of the LH surge. This was a prospective, proof of concept study. This protocol may be suitable for smaller or public in-vitro fertility units whose resources are limited and facilities are not available daily. The high pregnancy and live birth rate that we found provides confidence that this protocol can be part of the armament of protocols the clinician may offer to his patients. Larger studies should confirm these findings.
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Affiliation(s)
- Amir Weiss
- Fertility Unit, Department of Obstetrics and Gynecology, Emek Medical Center, Afula, 1834111, Israel; Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, 3525433, Israel.
| | - S Baram
- Fertility Unit, Department of Obstetrics and Gynecology, Emek Medical Center, Afula, 1834111, Israel.
| | - Y Geslevich
- Fertility Unit, Department of Obstetrics and Gynecology, Emek Medical Center, Afula, 1834111, Israel.
| | - S Goldman
- Fertility Unit, Department of Obstetrics and Gynecology, Emek Medical Center, Afula, 1834111, Israel.
| | - S Nothman
- Fertility Unit, Department of Obstetrics and Gynecology, Emek Medical Center, Afula, 1834111, Israel; Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, 3525433, Israel.
| | - R Beck-Fruchter
- Fertility Unit, Department of Obstetrics and Gynecology, Emek Medical Center, Afula, 1834111, Israel.
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19
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Is there a critical LH level for hCG trigger after the detection of LH surge in modified natural frozen-thawed single blastocyst transfer cycles? J Assist Reprod Genet 2020; 37:3025-3031. [PMID: 33057910 PMCID: PMC7714888 DOI: 10.1007/s10815-020-01974-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 10/07/2020] [Indexed: 11/24/2022] Open
Abstract
Purpose There is no consensus yet in the literature on an optimal luteinizing hormone (LH) level for human chorionic gonadotrophin (hCG) trigger timing in patients undergoing frozen-thawed embryo transfer (FET) with modified natural cycles (mNC). The objective of our study was to compare the clinical results of hCG trigger at different LH levels in mNC-FET cases. Methods This retrospective study was conducted in Istanbul Memorial Hospital ART and Genetics Center. A total of 1076 cases with 1163 mNC-FET cycles were evaluated. LH levels between the start of LH rise (15 IU/L) and LH peak level (> 40 IU/L) were evaluated. Cycles were analyzed in four groups: group A (n = 287) LH level on the day prior to the day of hCG; groups B, C and D, LH levels on the day of hCG: group B (n = 245) LH 15–24.9; group C (n = 253), LH 25–39.9; group D (n = 383) LH ≥ 40. Cycle outcomes in the four groups were compared. Results Subgroup analyses of mNC-FET groups showed that implantation, clinical and ongoing pregnancy rates, and pregnancy losses were not significantly different in patients with different LH levels on the day of hCG trigger. Conclusion Our study suggests that hCG can be administered at any time between the start of LH rise (≥ 15 IU/L) and LH peak level (≥ 40 IU/L) without a detrimental effect on clinical outcome.
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20
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Clinical Outcomes of Frozen-Thawed Embryo Transfer in Natural Cycles with Spontaneous or Induced Ovulation: a Retrospective Cohort Study from 1937 Cycles. Reprod Sci 2020; 28:794-800. [PMID: 33034864 DOI: 10.1007/s43032-020-00344-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/01/2020] [Indexed: 10/23/2022]
Abstract
Our objective was to assess whether there is a difference in the pregnancy outcomes in the natural cycle (NC) with spontaneous LH rise compared with modified natural cycle controlled by hCG for final oocyte maturation and ovulation after frozen-thawed embryo transfer (FET). In this retrospective cohort study, we analyzed the clinical outcomes of a total of 1937 patients undergoing FET followed by endometrial preparation with the natural cycle and modified natural cycle. The primary outcome was live birth, and secondary outcomes included miscarriage rate, clinical pregnancy rate, preterm birth rate, and ectopic pregnancy rate. The type of endometrial preparation did not impact live birth (adjusted odds ratio [aOR] 0.92; 95% confidence interval [CI], 0.69-1.23), miscarriage (aOR 0.83; 95%CI, 0.50-1.39), clinical pregnancy (aOR 0.88; 95%CI, 0.66-1.18), preterm birth (aOR 0.91; 95%CI, 0.56-1.50), or ectopic pregnancy (aOR 1.06; 95%CI, 0.29-3.94). In conclusion, in women undergoing FET, natural cycles and modified natural cycles resulted in comparable clinical outcomes.
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21
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Preimplantation Genetic Testing: Where We Are Today. Int J Mol Sci 2020; 21:ijms21124381. [PMID: 32575575 PMCID: PMC7352684 DOI: 10.3390/ijms21124381] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/13/2020] [Accepted: 06/16/2020] [Indexed: 12/19/2022] Open
Abstract
Background: Preimplantation genetic testing (PGT) is widely used today in in-vitro fertilization (IVF) centers over the world for selecting euploid embryos for transfer and to improve clinical outcomes in terms of embryo implantation, clinical pregnancy, and live birth rates. Methods: We report the current knowledge concerning these procedures and the results from different clinical indications in which PGT is commonly applied. Results: This paper illustrates different molecular techniques used for this purpose and the clinical significance of the different oocyte and embryo stage (polar bodies, cleavage embryo, and blastocyst) at which it is possible to perform sampling biopsies for PGT. Finally, genetic origin and clinical significance of embryo mosaicism are illustrated. Conclusions: The preimplantation genetic testing is a valid technique to evaluated embryo euploidy and mosaicism before transfer.
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Cardenas Armas DF, Peñarrubia J, Goday A, Guimerá M, Vidal E, Manau D, Fabregues F. Frozen-thawed blastocyst transfer in natural cycle increase implantation rates compared artificial cycle. Gynecol Endocrinol 2019; 35:873-877. [PMID: 30973031 DOI: 10.1080/09513590.2019.1600668] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Objective: To analyze global outcomes in frozen-thawed embryo transfer according to endometrial preparation with natural cycle and artificial cycle taking into account the developmental stage of the embryo.Methods: Retrospective cohort study, held in a tertiary-care university hospital with 1265 cycles for frozen-thawed embryo transfer of 860 patients, performed between January 2014 and December 2017. A total of 1097 embryo transfers were performed: 163 transfers in natural cycle (N), 531 in artificial cycle: transdermal estrogens and 403 with oral estrogens.Results: Demographical factors were similar in the three groups studied. When comparing the number of embryos transferred, the quality and the stage of embryos within the three groups there were no differences. Implantation rates were significantly higher in natural cycle. When adjusted depending on the developmental stage, blastocyst embryos transferred in natural cycle preparation had the highest implantation rate. Multiple pregnancies were also higher in natural cycle preparation. There were no significant difference between the groups in the clinical pregnancy rate, ongoing pregnancy, live birth, and miscarriages.Conclusions: Our results suggest that a natural cycle endometrial preparation assessing the disappearance of the dominant follicle by ultrasound increases implantation rates, especially when transferring blastocysts.
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Affiliation(s)
| | | | - Anna Goday
- FIVCLINIC, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Marta Guimerá
- FIVCLINIC, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Ester Vidal
- FIVCLINIC, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Dolors Manau
- FIVCLINIC, Hospital Clinic de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomediques August Pi i Sunyer, Barcelona, Spain
| | - Francesc Fabregues
- FIVCLINIC, Hospital Clinic de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomediques August Pi i Sunyer, Barcelona, Spain
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Scarselli F, Casciani V, Cursio E, Muzzì S, Colasante A, Gatti S, Greco MC, Greco P, Minasi MG, Greco E. Influence of human sperm origin, testicular or ejaculated, on embryo morphokinetic development. Andrologia 2018; 50:e13061. [DOI: 10.1111/and.13061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/13/2018] [Accepted: 05/06/2018] [Indexed: 01/01/2023] Open
Affiliation(s)
| | | | | | - Saverio Muzzì
- Centre for Reproductive Medicine; European Hospital; Rome Italy
| | | | - Simona Gatti
- Centre for Reproductive Medicine; European Hospital; Rome Italy
| | | | | | | | - Ermanno Greco
- Centre for Reproductive Medicine; European Hospital; Rome Italy
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24
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Groenewoud ER, Cohlen BJ, Macklon NS. Programming the endometrium for deferred transfer of cryopreserved embryos: hormone replacement versus modified natural cycles. Fertil Steril 2018; 109:768-774. [DOI: 10.1016/j.fertnstert.2018.02.135] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 02/13/2018] [Accepted: 02/19/2018] [Indexed: 12/01/2022]
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