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    • Vitro Fertilization
    • Egbert R Te Velde
    • Egbert R te Velde: Influence Statistics

      Egbert R te Velde

      Egbert R te Velde

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      Department of Public Health, Erasmus University Medical Center, Rotterdam, The Netherlands | Department of Public Health, Erasmus University Medical Center, PO Box 2040, 3000 ...

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      Egbert R te Velde:Expert Impact

      Concepts for whichEgbert R te Veldehas direct influence:Vitro fertilization,Peritoneal fluid,Follicle counts,Antral follicle count,Poor response,Natural menopause,Retrieved oocytes,Age menopause.

      Egbert R te Velde:KOL impact

      Concepts related to the work of other authors for whichfor which Egbert R te Velde has influence:Ovarian reserve,Live birth,Vitro fertilization,Polycystic ovary syndrome,Natural menopause,Pregnancy rate,Ovulation induction.

      KOL Resume for Egbert R te Velde

      Year
      2016

      Department of Public Health, Erasmus University Medical Center, Rotterdam, The Netherlands

      2015

      Department of Public Health, Erasmus University Medical Center, PO Box 2040, 3000 CA Rotterdam, The Netherlands

      2014

      Department of Public Health, Erasmus MC – University Medical Centre Rotterdam, Rotterdam, The Netherlands

      2013

      Department of Public Health, Erasmus MC University Medical Centre, Rotterdam, The Netherlands

      2011

      Department of Reproductive Medicine and Gynecology, Division of Woman and Baby (S.L.B., M.J.C.E., G.J.S., I.A.J.R., E.R.t.V., B.C.F., F.J.M.B.), University Medical Center, 3508 GA Utrecht, The Netherlands

      2009

      Department of Public Health, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA, The Netherlands

      2008

      Emeritus Professor Reproductive Medicine, University Utrecht, Utrecht

      Department of Public Health, Erasmus MC, University Medical Center, Rotterdam, the Netherlands

      2007

      Department of Reproductive Medicine, University Medical Center Utrecht, Utrecht, The Netherlands

      2006

      Department of Reproductive Medicine, Division of Obstetrics, Neonatology and Gynecology, University Medical Center Utrecht, Utrecht, The Netherlands

      2005

      Department of Reproductive Medicine, Division of Perinatology and Gynecology, University Medical Center Utrecht, Utrecht, The Netherlands

      2004

      Division of Perinatology and Gynaecology, University Medical Center, Utrecht, The Netherlands

      2003

      Department of Reproductive Medicine, Division of Perinatology and Gynaecology, University Medical Centre Utrecht, 3584 CX Utrecht, The Netherlands

      2002

      Department of Obstetrics and Gynecology, University Hospital, Utrecht, The Netherlands

      2001

      Department of Obstetrics and Gynaecology, University Medical Centre, 3584 CX Utrecht, The Netherlands

      2000

      University Medical Center Utrecht, Utrecht, the Netherlands

      1999

      Other

      University Medical Centre, Utrecht, Netherlands

      1998

      Department of Endocrinology and Fertility, Division of Obstetrics and Gynaecology, University Hospital Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands

      1997

      Department of Obstetrics and Gynecology, University Hospital, Utrecht

      1996

      University Hospital Utrecht, Utrecht, and Erasmus University, Rotterdam, The Netherlands

      1995

      Erasmus University, Rotterdam, The Netherlands

      Division of Obstetrics and Gynaecology, Department of Reproductive Medicine, University Hospital Utrecht, Utrecht

      1994

      Department of Reproductive Medicine, Division of Obstetrics and Gynaecology, University Hospital Utrecht, The Netherlands

      Toegepast Natuurwetenschappelijk Onderzoek Prevention and Public Health, Leiden

      Erasmus University Medical School, Rotterdam

      Utrecht University Hospital, Utrecht

      1993

      TNO Institute of Preventive Health Care, Child Health Division, 2300 AC Leiden; Department of Human Nutrition, Agricultural University, Wageningen: Department of Epidermilogy, University of Utrecht Medical School, and Department of Obstetrics and Gynaecology, University Hospital, Utrecht; Department of Public Health and Social Medicine, Erasmus University Medical School, Rotterdam; and Cryo Biological Laboratories, Bijdorp, Barendrecht, The Netherlands

      1992

      University Hospital Utrecht, Utrecht

      1991

      Onderzoek Institute of Preventive Health Care, Child Health Division, Leiden, The Netherlands.

      Division of Obstetrics and Gynecology, University Hospital AZG, Oostersingel 59, 9713 EZ, Groningen, The Netherlands

      1990

      University Hospital of the Free University, Amsterdam

      *Department of Obstetrics and Gynaecology, Academic Hospital of Utrecht, Utrecht, The Netherlands

      1989

      †Department of Gynaecology, University Hospital, Utrecht

      1988

      Depts. of Gastroenterology, Endocrinology and Gynecology, University Hospital Utrecht, Utrecht, The Netherlands

      1987

      Department of Obstetrics and Gynecology, University Hospital, Utrecht, The Netherlands;, Department of Pharmacology University of Maryland and Division of Comparative Medicine, Johns Hopkins Medical Institutions, Baltimore, Md., USA

      1986

      Hospital Vrije Universiteit, Amsterdam, University Hospital, Utrecht, and Erasmus Universiteit, Rotterdam, The Netherlands

      1985

      State University Hospital Utrecht, the Netherlands

      1982

      Department of Gynecology, Catharijnesingel 101, University Hospital 3500 CG Utrecht, Netherlands

      1981

      Department of Obstetrics and Gynecology University of Utrecht, Catharijnesingel 101, Utrecht, The Netherlands

      1979

      Department of Obstetrics and Gynaecology, Utrecht, the Netherlands

      Sign-in to see all concepts, it's free!
      Sample of concepts for which Egbert R te Velde is among the top experts in the world.
      Concept World rank
      tvs counts #1
      subfertility early #1
      progesterone sex adion #1
      hysterosalpingography diagnostic laparoscopy #1
      counts tvs #1
      quantitative transvaginal #1
      menopause oocytes #1
      maximal diagnostic strategy #1
      process follicle depletion #1
      age newborn insemination #1
      critical age fecundity #1
      loss oocyte quantity #1
      sod diagnosis #1
      follicle depletion loss #1
      proven fertility #1
      artificial male marketing #1
      menopause variation #1
      stress diagnostic procedures #1
      methods 95 cid #1
      hypotheses age reduction #1
      wide age variations #1
      tvs cid #1
      follicle counts 2d #1
      2d tvs #1
      hormonal sonographic #1
      rupture developing #1
      marker ages #1
      probability healthy #1
      preselection strategy #1
      serial hormonal #1
      cid tvs #1
      tvs 95 cid #1
      success ivf treatment #1
      woman healthy #1
      postmenopausal disease #1
      ecu diagnosis #1
      routine infertility work #1
      interobserver method #1
      counts 2d #1
      aging clomiphene #1
      263142 dutch women #1
      Sign-in to see all concepts, it's free!

      Prominent publications by Egbert R te Velde

      KOL-Index: 14209

      OBJECTIVE: To assess the predictive performance of the antral follicle count (AFC) as a test for ovarian reserve in IVF patients and to compare this performance with that of basal FSH level.

      DESIGN: Meta-analysis.

      SETTING: Tertiary fertility center.

      PATIENT(S): Patients undergoing IVF.

      INTERVENTION(S): None.

      MAIN OUTCOME MEASURE(S): Poor ovarian response, nonpregnancy.

      RESULT(S): We identified 11 studies on AFC and an updated total of 32 studies on basal FSH from the literature on the ...

      Known for Poor Ovarian Response | Vitro Fertilization | Basal Fsh | Stimulating Hormone | Afc Prediction
      KOL-Index: 14074

      OBJECTIVE: Age at menopause and age at the start of the preceding period of cycle irregularity (menopausal transition) show considerable individual variation. In this study we explored several markers for their ability to predict the occurrence of the transition to menopause.

      DESIGN: A group of 81 normal women between 25 and 46 years of age visited the clinic two times (at T1 and T2) with an average interval of 4 years. All had a regular menstrual cycle pattern at T1. At T1, ...

      Known for Menopausal Transition | Age Amh | Fsh Inhibin | Cycle Irregularity | Müllerian Hormone
      KOL-Index: 14010

      OBJECTIVE: To investigate by meta-analysis the predictive capacity of ovarian volume as an ovarian reserve test in comparison to the antral follicle count (AFC).

      DESIGN: Meta-analysis.

      SETTING: Tertiary fertility center.

      PATIENT(S): Patients undergoing IVF.

      INTERVENTION(S): None.

      MAIN OUTCOME MEASURE(S): Poor ovarian response, nonpregnancy.

      RESULT(S): A total of 10 studies were detected reporting on ovarian volume and 17 studies on AFC. Because of heterogeneity among studies, calculation ...

      Known for Ovarian Volume | Antral Follicle | Ivf Patients | Poor Response | Nonpregnancy Afc
      KOL-Index: 13996

      STUDY QUESTION: Is there an association between acute prenatal famine exposure or birthweight and subsequent reproductive performance and age at menopause?

      SUMMARY ANSWER: No association was found between intrauterine famine exposure and reproductive performance, but survival analysis showed that women exposed in utero were 24% more likely to experience menopause at any age.

      WHAT IS KNOWN ALREADY: Associations between prenatal famine and subsequent reproductive performance have been ...

      Known for Age Menopause | Famine Exposure | Dutch Hunger | Association Birthweight | Pregnancy Prenatal
      KOL-Index: 13645

      BACKGROUND: The aim of this study was to investigate the predictive accuracy and clinical value of performing either a single or a repeated clomiphene citrate challenge test (CCCT) in predicting poor response in IVF, compared to that of currently used basal ovarian reserve markers.

      METHODS: Sixty-three patients undergoing their first IVF treatment were prospectively included. After measurement of basal markers on cycle day 3 (cd3) [FSH, inhibin B and antral follicle count (AFC)], a CCCT ...

      Known for Ovarian Reserve | Poor Response | Afc Ccct | Ivf Treatment | Fsh Inhibin
      KOL-Index: 13481

      STUDY QUESTION: How can we predict chances of natural conception at various time points in couples diagnosed with unexplained subfertility?

      SUMMARY ANSWER: We developed a dynamic prediction model that can make repeated predictions over time for couples with unexplained subfertility that underwent a fertility workup at a fertility clinic.

      WHAT IS KNOWN ALREADY: The most frequently used prediction model for natural conception (the 'Hunault model') estimates the probability of natural ...

      Known for Natural Conception | Repeated Predictions | Fertility Workup | Time Couples | Expectant Management
      KOL-Index: 13407

      BACKGROUND: The purpose of this study was to compare the predictive capacity of several markers of reproductive age in normal women.

      METHODS: Healthy female volunteers (n = 162) aged 25-46 years with proven, normal fertility and regular menstrual cycles were recruited. In this selected group, chronological age was assumed to approximate reproductive age and, therefore, was taken as the proxy-variable for reproductive age. The number of antral follicles with 2-10 mm diameter, total ...

      Known for Reproductive Age | Antral Follicles | Normal Women | Proven Fertility | Ovarian Follicle
      KOL-Index: 12974

      Two very common single nucleotide polymorphisms at positions 307 and 680 in exon 10 of the FSH receptor gene have been associated with ovarian response in IVF. This observational study evaluated the role of the FSH receptor genotype in the prediction of poor response and clinical pregnancy in IVF in comparison with other markers, such as age, basal FSH, anti-Müllerian hormone and antral follicle count. In addition, the in-vitro cAMP response towards recombinant FSH in cultured granulosa ...

      Known for Fsh Receptor | Ovarian Response Patients | Poor Response | Pregnancy Rates | Single Nucleotide
      KOL-Index: 12862

      OBJECTIVE: To investigate whether IVF outcome of patients older than 40 years of age with basal FSH levels less than 15 IU/L differs from that in patients 40 years of age or younger with basal FSH levels of 15 IU/L or greater.

      DESIGN: Prospective observational study.

      SETTING: Tertiary academic fertility center.

      PATIENT(S): Women 41 years of age or older with basal FSH levels less than 15 IU/L (n = 50), and women 40 years of age or younger with elevated basal FSH levels (n = 36) ...

      Known for 40 Years | Embryo Quality | Patients Age | Hormone Levels | 15 Iu
      KOL-Index: 12520

      OBJECTIVE: To identify and quantify predictors of poor ovarian response in in vitro fertilization (IVF). DESIGN; Prospective study. SETTING; Tertiary fertility center.

      PATIENT(S): One hundred twenty women undergoing their first IVF cycle.

      INTERVENTION(S): Measurement of the number of antral follicles and the total ovarian volume by ultrasound, and of basal levels of FSH, E(2), and inhibin B on cycle day 3.

      MAIN OUTCOME MEASURE(S): Ovarian response, and clinical and ongoing pregnancy ...

      Known for Ovarian Response | Vitro Fertilization | Basal Markers | Stimulating Hormone Humans | Antral Follicle Count
      KOL-Index: 11993

      OBJECTIVE: To study the value of a single antral follicle count and the additional value of repeated counts in different cycles for the prediction of poor ovarian response in IVF.

      DESIGN: Prospective.

      SETTING: Tertiary fertility center.

      PATIENT(S): One hundred twenty women undergoing their first IVF cycle.

      INTERVENTION(S): Measurement of the number of antral follicles on cycle day 3 in two spontaneous cycles. Ovarian response.

      RESULT(S): A single antral follicle count is clearly ...

      Known for Antral Follicle Count | Vitro Fertilization | Poor Ovarian | Embryo Transfer | Ivf Cycle
      KOL-Index: 11700

      BACKGROUND: Our aim was to examine whether women who had a low number of retrieved oocytes at their first IVF attempt reach the menopausal transition and/or the natural menopause earlier than women of similar ages with a high number of retrieved oocytes.

      METHODS: We conducted a retrospective cohort study among women in The Netherlands who received IVF treatment between 1983 and 1995. For the present study, we selected all cohort members who had a regular menstrual cycle at the time of ...

      Known for Ivf Treatment | Natural Menopause | Retrieved Oocytes | Poor Response | Embryo Transfer
      KOL-Index: 11610

      OBJECTIVE: The aim of this study was to assess which of the basal ovarian reserve markers provides the best reflection of the changes occurring in ovarian function over time (i.e., reproductive aging).

      DESIGN: Prospective longitudinal study.

      SETTING: Healthy volunteers in an academic research center.

      PATIENT(S): Eighty-one women with normal reproductive performance during the course of their lives were longitudinally assessed. In this select group of women, becoming chronologically older ...

      Known for Normal Women | Hormone Levels | Reproductive Decline | Afc Fsh | Time Amh
      KOL-Index: 11532

      BACKGROUND: The aim of this study was to evaluate the effect of doubling the starting dose of gonadotrophins on the ovarian response in IVF patients with a low antral follicle count (AFC).

      METHODS: Fifty-two patients with an AFC of <5 follicles of 2-5 mm diameter before starting their first IVF cycle participated in this randomized controlled trial. They were randomized by opening a sealed envelope, receiving either 150 IU (group I, n = 26) or 300 IU (group II, n = 26) of rFSH as a ...

      Known for Starting Dose | Ivf Treatment | Randomized Controlled Trial | Follicle Count | Poor Response
      KOL-Index: 11421

      OBJECTIVE: The variability in ultrasound-based antral follicle counts sized 2-10 mm after allowing for age-related decline is considerable. This may represent differences in actual reproductive age among women. This hypothesis was tested by cohort comparison for distribution of age at occurrence of reproductive events.

      DESIGN: A model with a nonlinear mean decline with age was fitted to antral follicle counts (AFC) obtained in 163 regularly cycling fertile volunteers. Ages at last child ...

      Known for Age Menopause | Natural Fertility | Antral Follicle | Reproductive Events | Predictive Tests

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      Department of Public Health, Erasmus University Medical Center, Rotterdam, The Netherlands | Department of Public Health, Erasmus University Medical Center, PO Box 2040, 3000 CA Rotterdam, The Netherlands | Department of Public Health, Erasmus MC – U

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