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Liu C, Chen H, Zhao J, Chen Y, Xu B. Comparative study on risk of birth defects in singleton ART birth under high levels of estrogen after fresh embryo transfer and frozen embryo transfer. J Matern Fetal Neonatal Med 2022; 35:9536-9543. [PMID: 35253596 DOI: 10.1080/14767058.2022.2047923] [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: 10/18/2022]
Abstract
OBJECTIVE To investigate whether high estrogen (E2) levels caused by controlled ovarian hyperstimulation affect the birth defect rate in singleton assisted reproductive technology (ART) birth after conceived by fresh embryo transfer and frozen embryo transfer (FET). METHODS This was a retrospective cohort study. A total of 581 women with singletons, as well as those who have become pregnant and have had an unwanted abortion under high E2 levels on trigger day were divided into three groups. Group A received FET and the E2 levels on trigger day were higher than 5000 pg/ml. Group B received fresh embryo transfer and the E2 levels were between 3000 and 5000 pg/ml. Group C received FET and the E2 levels were between 3000 and 5000 pg/ml. RESULTS There were no significant differences in birth weight, delivery mode, preterm birth rate, and fetal sex between the three groups (p > .05). Birth defect rate in Group B was higher than that in Group A and C, and the rate between Group B and C had significant differences (p < .05). After adjusting for maternal age, BMI, and type of infertility, only a FET cycle is significantly associated with decreased birth defect rate. CONCLUSION Fresh embryo transfer under supraphysiological level of estrogen exposure may increase the birth defect rate of ART singletons. Even after prenatal screening and diagnosis, a part of birth defect could not be detected during pregnancy. When the estrogen levels on trigger day were no lower than 3000 pg/ml, FET should be advocated to reduce the occurrence of such risk.
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Affiliation(s)
- Chang Liu
- Department of Reproductive Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Huihui Chen
- Department of Reproductive Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Junzhao Zhao
- Department of Reproductive Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yufeng Chen
- Department of Reproductive Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Boyun Xu
- Department of Reproductive Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Roychoudhury S, Lodha A, Synnes A, Abou Mehrem A, Canning R, Banihani R, Beltempo M, Theriault K, Yang J, Shah PS, Soraisham AS, Ting J, Abou Mehrem A, Alvaro R, Adie M, Ng E, Pelausa E, Beltempo M, Claveau M, Barrington K, Lapoint A, Ethier G, Drolet C, Piedboeuf B, Afifi J, Dahlgren L, Wood S, Metcalfe A, O’Quinn C, Helewa M, Taboun F, Melamed N, Abenhaim H, Wou K, Gratton R, Boucoiran I, Taillefer C, Theriault K, Allen V, Synnes A, Grunau R, Hendson L, Moddemann D, de Cabo C, Nwaesei C, Church P, Banihani R, Pelausa E, Nguyen KA, Khairy M, Beltempo M, Dorval V, Luu TM, Bélanger S, Afifi J. Neurodevelopmental outcomes of preterm infants conceived by assisted reproductive technology. Am J Obstet Gynecol 2021; 225:276.e1-276.e9. [PMID: 33798481 DOI: 10.1016/j.ajog.2021.03.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/16/2021] [Accepted: 03/26/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND There have been concerns about the development of children conceived through assisted reproductive technology. Despite multiple studies investigating the outcomes of assisted conception, data focusing specifically on the neurodevelopmental outcomes of infants conceived through assisted reproductive technology and born preterm are limited. OBJECTIVE This study aimed to evaluate and compare the neurodevelopmental outcomes of preterm infants born at <29 weeks' gestation at 18 to 24 months' corrected age who were conceived through assisted reproductive technology and those who were conceived naturally. STUDY DESIGN This retrospective cohort study included inborn, nonanomalous infants, born at <29 weeks' gestation between January 1, 2010, and December 31, 2016, who had a neurodevelopmental assessment at 18 to 24 months' corrected age at any of the 10 Canadian Neonatal Follow-Up Network clinics. The primary outcome was neurodevelopmental impairment at 18 to 24 months, defined as the presence of any of the following: cerebral palsy; Bayley-III cognitive, motor, or language composite score of <85; sensorineural or mixed hearing loss; and unilateral or bilateral visual impairment. Secondary outcomes included mortality, composite of mortality or neurodevelopmental impairment, significant neurodevelopmental impairment, and each component of the primary outcome. We compared outcomes between infants conceived through assisted reproductive technology and those conceived naturally, using bivariate and multivariable analyses after adjustment. RESULTS Of the 4863 eligible neonates, 651 (13.4%) were conceived using assisted reproductive technology. Maternal age; education level; and rates of diabetes mellitus, receipt of antenatal corticosteroids, and cesarean delivery were higher in the assisted reproduction group than the natural conception group. Neonatal morbidity and death rates were similar except for intraventricular hemorrhage, which was lower in the assisted reproduction group (33% [181 of 546] vs 39% [1284 of 3318]; P=.01). Of the 4176 surviving infants, 3386 (81%) had a follow-up outcome at 18 to 24 months' corrected age. Multivariable logistic regression adjusting for gestational age, antenatal steroids, sex, small for gestational age, multiple gestations, mode of delivery, maternal age, maternal education, pregnancy-induced hypertension, maternal diabetes mellitus, and smoking showed that infants conceived through assisted reproduction was associated with lower odds of neurodevelopmental impairment (adjusted odds ratio, 0.67; 95% confidence interval, 0.52-0.86) and the composite of death or neurodevelopmental impairment (adjusted odds ratio, 0.67; 95% confidence interval, 0.54-0.84). Conception through assisted reproductive technology was associated with decreased odds of a Bayley-III composite cognitive score of <85 (adjusted odds ratio, 0.68; 95% confidence interval, 0.48-0.99) and composite language score of <85 (adjusted odds ratio, 0.67; 95% confidence interval, 0.50-0.88). CONCLUSION Compared with natural conception, assisted conception was associated with lower odds of adverse neurodevelopmental outcomes, especially cognitive and language outcomes, at 18 to 24 months' corrected age among preterm infants born at <29 weeks' gestation. Long-term follow-up studies are required to assess the risks of learning disabilities and development of complex visual-spatial and processing skills in these children as they reach school age.
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Catford SR, Lewis S, Halliday J, Kennedy J, O'Bryan MK, McBain J, Amor DJ, Rombauts L, Saffery R, Hart RJ, McLachlan RI. Health and fertility of ICSI-conceived young men: study protocol. Hum Reprod Open 2020; 2020:hoaa042. [PMID: 33033755 PMCID: PMC7532549 DOI: 10.1093/hropen/hoaa042] [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: 05/04/2020] [Revised: 06/23/2020] [Indexed: 12/27/2022] Open
Abstract
STUDY QUESTIONS What are the long-term health and reproductive outcomes for young men conceived using ICSI whose fathers had spermatogenic failure (STF)? Are there epigenetic consequences of ICSI conception? WHAT IS KNOWN ALREADY Currently, little is known about the health of ICSI-conceived adults, and in particular the health and reproductive potential of ICSI-conceived men whose fathers had STF. Only one group to date has assessed semen parameters and reproductive hormones in ICSI-conceived men and suggested higher rates of impaired semen quality compared to spontaneously conceived (SC) peers. Metabolic parameters in this same cohort of men were mostly comparable. No study has yet evaluated other aspects of adult health. STUDY DESIGN SIZE DURATION This cohort study aims to evaluate the general health and development (aim 1), fertility and metabolic parameters (aim 2) and epigenetic signatures (aim 3) of ICSI-conceived sons whose fathers had STF (ICSI study group). There are three age-matched control groups: ICSI-conceived sons whose fathers had obstructive azoospermia (OAZ) and who will be recruited in this study, as well as IVF sons and SC sons, recruited from other studies. Of 1112 ICSI parents including fathers with STF and OAZ, 78% (n = 867) of mothers and 74% (n = 823) of fathers were traced and contacted. Recruitment of ICSI sons started in March 2017 and will finish in July 2020. Based on preliminary participation rates, we estimate the following sample size will be achieved for the ICSI study group: mothers n = 275, fathers n = 225, sons n = 115. Per aim, the sample sizes of OAZ-ICSI (estimated), IVF and SC controls are: Aim 1-OAZ-ICSI: 28 (maternal surveys)/12 (son surveys), IVF: 352 (maternal surveys)/244 (son surveys), SC: 428 (maternal surveys)/255 (son surveys); Aim 2-OAZ-ICSI: 12, IVF: 72 (metabolic data), SC: 391 (metabolic data)/365 (reproductive data); Aim 3-OAZ-ICSI: 12, IVF: 71, SC: 292. PARTICIPANTS/MATERIALS SETTING METHODS Eligible parents are those who underwent ICSI at one of two major infertility treatment centres in Victoria, Australia and gave birth to one or more males between January 1994 and January 2000. Eligible sons are those aged 18 years or older, whose fathers had STF or OAZ, and whose parents allow researchers to approach sons. IVF and SC controls are age-matched men derived from previous studies, some from the same source population. Participating ICSI parents and sons complete a questionnaire, the latter also undergoing a clinical assessment. Outcome measures include validated survey questions, physical examination (testicular volumes, BMI and resting blood pressure), reproductive hormones (testosterone, sex hormone-binding globulin, FSH, LH), serum metabolic parameters (fasting glucose, insulin, lipid profile, highly sensitive C-reactive protein) and semen analysis. For epigenetic and future genetic analyses, ICSI sons provide specimens of blood, saliva, sperm and seminal fluid while their parents provide a saliva sample. The primary outcomes of interest are the number of mother-reported hospitalisations of the son; son-reported quality of life; prevalence of moderate-severe oligozoospermia (sperm concentration <5 million/ml) and DNA methylation profile. For each outcome, differences between the ICSI study group and each control group will be investigated using multivariable linear and logistic regression for continuous and binary outcomes, respectively. Results will be presented as adjusted odds ratios and 95% CIs. STUDY FUNDING/COMPETING INTERESTS This study is funded by an Australian National Health and Medical Research Council Partnership Grant (NHMRC APP1140706) and was partially funded by the Monash IVF Research and Education Foundation. L.R. is a minority shareholder and the Group Medical Director for Monash IVF Group, and reports personal fees from Monash IVF group and Ferring Australia, honoraria from Ferring Australia, and travel fees from Merck Serono, MSD and Guerbet; R.J.H. is the Medical Director of Fertility Specialists of Western Australia and has equity in Western IVF; R.I.M. is a consultant for and a shareholder of Monash IVF Group and S.R.C. reports personal fees from Besins Healthcare and non-financial support from Merck outside of the submitted work. The remaining authors have no conflicts of interest to declare. TRIAL REGISTRATION NUMBER Not applicable. TRIAL REGISTRATION DATE Not applicable. DATE OF FIRST PATIENT’S ENROLMENT Not applicable.
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Affiliation(s)
- S R Catford
- Hudson Institute of Medical Research, Melbourne 3168, Australia.,Department of Obstetrics and Gynaecology, Monash University, Melbourne 3168, Australia.,Murdoch Children's Research Institute, Melbourne 3052, Australia
| | - S Lewis
- Murdoch Children's Research Institute, Melbourne 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne 3052, Australia
| | - J Halliday
- Murdoch Children's Research Institute, Melbourne 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne 3052, Australia
| | - J Kennedy
- Murdoch Children's Research Institute, Melbourne 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne 3052, Australia
| | - M K O'Bryan
- The School of Biological Sciences, Monash University, Melbourne 3168, Australia
| | - J McBain
- Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne 3052, Australia.,Melbourne IVF, East Melbourne 3002, Australia.,Department of Obstetrics and Gynaecology, The Royal Women's Hospital, Melbourne 3052, Australia
| | - D J Amor
- Murdoch Children's Research Institute, Melbourne 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne 3052, Australia
| | - L Rombauts
- Department of Obstetrics and Gynaecology, Monash University, Melbourne 3168, Australia.,Monash IVF Group Pty Ltd, Melbourne 3121, Australia
| | - R Saffery
- Murdoch Children's Research Institute, Melbourne 3052, Australia.,Department of Paediatrics, University of Melbourne, Melbourne 3052, Australia
| | - R J Hart
- Division of Obstetrics and Gynaecology, University of Western Australia, Crawley 6009, Australia.,Fertility Specialists of Western Australia, Claremont 6010, Australia
| | - R I McLachlan
- Hudson Institute of Medical Research, Melbourne 3168, Australia.,Department of Obstetrics and Gynaecology, Monash University, Melbourne 3168, Australia.,Monash IVF Group Pty Ltd, Melbourne 3121, Australia
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Yasemin Sert U, Kansu Celik H, Canpolat FE, Sımsek GK, Engin Ustun Y. Hearing Screening Test Results of Newborns Conceived by Intracytoplasmic Sperm Injection: A Retrospective Study of Tertiary Referral Center. Fetal Pediatr Pathol 2020; 39:288-296. [PMID: 31441346 DOI: 10.1080/15513815.2019.1651804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Objective: Assisted reproductive technologies (ART), especially intracytoplasmic sperm injection (ICSI), is associated with birth defects. However, there are few reports on hearing screening tests of these babies. We aimed to determine the association between ART and hearing loss in newborns.Materials and methods: This retrospective study examined 246 ICSI newborns between 2013 and 2015. All the patients conceived by ICSI. We examined the hearing screening results of the babies.Results: A total of 25 newborns did not pass the first screening test, including 17 by transient evoked otoacoustic emission (TEOAE) and 8 by auditory brainstem response (ABR). Ten babies did not pass the advanced examination. Total hearing loss affected 4% of ART babies.Conclusion: Hearing screening tests exposed deficient results in 4% of ICSI babies, which is ten times more frequent than spontaneously conceived newborns.
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Affiliation(s)
- Umit Yasemin Sert
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Kadin Sagligi EAH, Ankara, Turkey
| | - Hatice Kansu Celik
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Kadin Sagligi EAH, Ankara, Turkey
| | - Fuat Emre Canpolat
- Department of Neonotolgy, Zekai Tahir Burak Kadin Sagligi EAH, Ankara, Turkey
| | | | - Yaprak Engin Ustun
- Department of Obstetrics and Gynecology, Zekai Tahir Burak Kadin Sagligi EAH, Ankara, Turkey
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Catford SR, McLachlan RI, O'Bryan MK, Halliday JL. Long-term follow-up of ICSI-conceived offspring compared with spontaneously conceived offspring: a systematic review of health outcomes beyond the neonatal period. Andrology 2018; 6:635-653. [DOI: 10.1111/andr.12526] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 06/13/2018] [Accepted: 06/19/2018] [Indexed: 12/17/2022]
Affiliation(s)
- S. R. Catford
- Hudson Institute of Medical Research; Clayton VIC Australia
- Department of Obstetrics and Gynecology; Monash University; Clayton VIC Australia
- Public Health Genetics; Murdoch Childrens Research Institute; Parkville VIC Australia
| | - R. I. McLachlan
- Hudson Institute of Medical Research; Clayton VIC Australia
- Department of Obstetrics and Gynecology; Monash University; Clayton VIC Australia
| | - M. K. O'Bryan
- The School of Biological Sciences; Monash University; Clayton VIC Australia
| | - J. L. Halliday
- Public Health Genetics; Murdoch Childrens Research Institute; Parkville VIC Australia
- Department of Paediatrics; University of Melbourne; Parkville VIC Australia
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Schendelaar P, Van den Heuvel ER, Heineman MJ, La Bastide-Van Gemert S, Middelburg KJ, Seggers J, Hadders-Algra M. Increased time to pregnancy is associated with less optimal neurological condition in 4-year-old singletons, in vitro fertilization itself is not. Hum Reprod 2014; 29:2773-86. [DOI: 10.1093/humrep/deu252] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Assisted reproductive technologies and children's neurodevelopmental outcomes. Fertil Steril 2013; 99:311-7. [PMID: 23375145 DOI: 10.1016/j.fertnstert.2012.12.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 12/11/2012] [Accepted: 12/17/2012] [Indexed: 01/24/2023]
Abstract
Initial reports suggested that children conceived with assisted reproductive technologies (ART) may be at increased risk for a spectrum of developmental disabilities. Evolving evidence suggests that some of the early risks may have been overstated when not taking plurality of birth or gestational age at delivery into consideration, as both are independent risk factors for neurodevelopmental disabilities arising from alterations in structure and function or limitations in activities. Continued research is needed to overcome lingering data gaps in light of the equivocal literature for many neurodevelopmental disabilities relative to ART, increasing utilization of services, and changes in the clinical management of infecund couples such as the adoption of natural cycles or in vitro maturation treatment options. Population-based cohorts with longitudinal assessment of the multifaceted nature of neurodevelopment across critical and sensitive windows is paramount for the development of empirically based guidance for clinical and population health.
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Merchant R, Gandhi G, Allahbadia GN. In vitro fertilization/intracytoplasmic sperm injection for male infertility. Indian J Urol 2011; 27:121-32. [PMID: 21716935 PMCID: PMC3114573 DOI: 10.4103/0970-1591.78430] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Progress in the field of assisted reproduction, and particularly micromanipulation, now heralds a new era in the management of severe male factor infertility, not amenable to medical or surgical correction. By overcoming natural barriers to conception, in vitro fertilization and embryo transfer (IVF-ET), subzonal sperm insemination, partial zona dissection, and intracytoplasmatic injection of sperm (ICSI) now offer couples considered irreversibly infertile, the option of parenting a genetically related child. However, unlike IVF, which necessitates an optimal sperm number and function to successfully complete the sequence of events leading to fertilization, micromanipulation techniques, such as ICSI, involving the direct injection of a spermatozoon into the oocyte, obviate all these requirements and may be used to alleviate severe male factor infertility due to the lack of sperm in the ejaculate due to severely impaired spermatogenesis (non-obstructive azoospermia) or non-reconstructable reproductive tract obstruction (obstructive azoospermia). ICSI may be performed with fresh or cryopreserved ejaculate sperm where available, microsurgically extracted epididymal or testicular sperm with satisfactory fertilization, clinical pregnancy, and ongoing pregnancy rates. However, despite a lack of consensus regarding the genetic implications of ICSI or the application and efficacy of preimplantation genetic diagnosis prior to assisted reproductive technology (ART), the widespread use of ICSI, increasing evidence of the involvement of genetic factors in male infertility and the potential risk of transmission of genetic disorders to the offspring, generate major concerns with regard to the safety of the technique, necessitating a thorough genetic evaluation of the couple, classification of infertility and adequate counseling of the implications and associated risks prior to embarking on the procedure. The objective of this review is to highlight the indications, advantages, limitations, outcomes, implications and safety of using IVF/ICSI for male factor infertility to enable a more judicious use of these techniques and maximize their potential benefits while minimizing foreseen complications.
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Affiliation(s)
- Rubina Merchant
- Deccan Fertility Clinic, Rotunda - Center for Human Reproduction, Mumbai, India
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Meddeb L, Boyer M, Pauly V, Tourame P, Rossin B, Pfister B, Boyer P. [Procedure used to follow-up a cohort of IVF children. Interests and limits of tools performed to longitudinal follow up for a monocentric cohort]. Rev Epidemiol Sante Publique 2011; 59:97-105. [PMID: 21429679 DOI: 10.1016/j.respe.2010.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Revised: 09/20/2010] [Accepted: 11/22/2010] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Follow-up of in vitro fertilization (IVF) children is recommended by the French health authorities. Follow-up procedures were set-up in a medically assisted reproduction unit at the Saint-Joseph Hospital in Marseille. The objective was to ensure effective follow-up. In this context, it is important to determinate weather the designated tools are appropriate for evaluating the desired developmental outcomes. This study was designed to describe the surveillance tool and to demonstrate its usefulness and limitations. METHODS The procedure was initiated in 2004. All existing data for every livebirth child were collected, including data concerning all IVF attempts, medical reports of pregnancy, and child health records. Parents were asked to complete questionnaires and provide their child's personal health records since birth. The quality of the data was evaluated using prenatal and postnatal analysis. The longitudinal anthropometric data of the health records were used to describe the percentiles of weights and heights from birth to 6 years in this population at age-specific reference intervals. RESULTS The follow-up concerned 2081 children born since 1995 with a response rate of 68,9%. A brief descriptive analysis was performed for the cohort and for a group of 1053 children aged five years and older, 225 representative personal health records were used to estimate quintiles for anthropometric data. CONCLUSION The procedure adopted for the follow-up of in vitro fertilization children meets the established qualitative health requirements. This method provides many benefits with no risk for the children. Data collection from personal health records enabled an exploitation of growth data by including the calculation of anthropometric percentiles in this IVF population. This report presents the first set of IVF child growth standards used as health indicator and health trend measurement.
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Affiliation(s)
- L Meddeb
- Service de médecine et biologie de la reproduction, hôpital Saint-Joseph, Marseille, France
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Intracytoplasmic injection of morphologically selected spermatozoa (IMSI) improves outcome after assisted reproduction by deselecting physiologically poor quality spermatozoa. J Assist Reprod Genet 2010; 28:253-62. [PMID: 21072684 DOI: 10.1007/s10815-010-9505-5] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2010] [Accepted: 10/29/2010] [Indexed: 10/18/2022] Open
Abstract
PURPOSE We used computer assisted sperm selection (MSOME) during cycles of intracytoplasmic sperm injection to test whether this technique improves results over traditional ICSI protocols. We also used the TUNEL assay to test whether MSOME could deselect physiologically abnormal spermatozoa. METHODS Individual spermatozoa were examined with MSOME. Normal and abnormal spermatozoa were tested for the level of DNA fragmentation using TUNEL assay. In a prospective, randomized trial, patients were selected for standard ICSI, or IMSI techniques. We tested the two groups for biological and clinical parameters. RESULTS 64.8% of spermatozoa, otherwise selectable for ICSI, were characterized by abnormalities after computer-assisted sperm analysis. These sperm were also characterized by an increase in the level of DNA fragmentation. We noted an increase in embryo quality, pregnancy and implantation rates after computerized sperm selection during ICSI procedures. CONCLUSIONS Computerised selection of spermatozoa during ICSI procedures deselects physiological abnormal spermatozoa and improves clinical results.
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Schwangerschaft und Geburt nach assistierter Reproduktion. GYNAKOLOGISCHE ENDOKRINOLOGIE 2010. [DOI: 10.1007/s10304-010-0377-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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