27 results on '"van der Veen, Fulco"'
Search Results
2. A revised prediction model for natural conception
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Biostatistiek Onderzoek, Circulatory Health, Child Health, JC onderzoeksprogramma Methodologie, Infection & Immunity, MS VPG/Gynaecologie, Bensdorp, Alexandra J, van der Steeg, Jan Willem, Steures, Pieternel, Habbema, J Dik F, Hompes, Peter G A, Bossuyt, Patrick M M, van der Veen, Fulco, Mol, Ben W J, Eijkemans, Marinus J C, CECERM study group, Biostatistiek Onderzoek, Circulatory Health, Child Health, JC onderzoeksprogramma Methodologie, Infection & Immunity, MS VPG/Gynaecologie, Bensdorp, Alexandra J, van der Steeg, Jan Willem, Steures, Pieternel, Habbema, J Dik F, Hompes, Peter G A, Bossuyt, Patrick M M, van der Veen, Fulco, Mol, Ben W J, Eijkemans, Marinus J C, and CECERM study group
- Published
- 2017
3. The risk of hypogonadism after testicular sperm extraction in men with various types of azoospermia: a prospective cohort study.
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Eliveld J, van der Bles I, van Wely M, Meißner A, Soufan AT, Heijboer AC, Repping S, van der Veen F, and van Pelt AMM
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- Male, Humans, Prospective Studies, Longitudinal Studies, Sperm Retrieval, Retrospective Studies, Semen, Testis surgery, Spermatozoa, Testosterone, Azoospermia therapy, Klinefelter Syndrome complications, Hypogonadism complications
- Abstract
Research Question: What is the risk of hypogonadism in men with obstructive azoospermia, non-obstructive azoospermia (NOA) or Klinefelter syndrome after testicular sperm extraction (TESE)?, Design: This prospective longitudinal cohort study was carried out between 2007 and 2015., Results: Around 36% of men with Klinefelter syndrome, 4% of men with obstructive azoospermia and 3% of men with NOA needed testosterone replacement therapy (TRT). Klinefelter syndrome was strongly associated with TRT while no association was found between obstructive azoospermia or NOA and TRT. Irrespective of the pre-operative diagnosis, a higher testosterone concentration before TESE was associated with a lower chance of needing TRT., Conclusions: Men with obstructive azoospermia or NOA have a similar moderate risk of clinical hypogonadism after TESE, while this risk is much larger for men with Klinefelter syndrome. The risk of clinical hypogonadism is lower when testosterone concentrations are high before TESE., (Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2023
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4. Unmet support needs in donor sperm treatment: consequences for parents and their donor-children.
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Schrijvers AM, Kan KJ, van der Veen F, Visser M, Bos HMW, Mochtar MH, and van Rooij FB
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- Adult, Cross-Sectional Studies, Female, Humans, Male, Parenting, Spermatozoa, Donor Conception, Parents psychology
- Abstract
Research Question: Are unmet needs for psychosocial counselling, peer support and friends/family support in parents directly and/or indirectly related to the mental health of parents and their donor-children?, Design: A cross-sectional sample of 214 parents participated in this quantitative study via an online questionnaire. The sample comprised mothers and fathers in a heterosexual relationship (n = 85), mothers in a lesbian relationship (n = 67) and single mothers (n = 62). Parents were recruited via three Dutch fertility clinics and four network organizations. Unmet support needs were measured with an adapted version of the Unmet Needs for Parenting Support questionnaire, changing the original items into items about donor conception. The items were derived from a qualitative study and checked by experts in donor conception. The parents' mental health was measured with the Adult Self Report and the donor-children's mental health with the Child Behaviour Checklist. A multigroup mediation analysis was conducted to explore relationships between parents' unmet support needs and their child's mental health, with the parents' mental health as a possible mediator., Results: There were no direct relations between parents' unmet support needs and the mental health of donor-children. Unmet needs for psychosocial counselling, peer support and friends/family support for parents and children's mental health were indirectly related through the mental health of the parents: 0.074 (CI 95% = 0.013-0.136; P = 0.017), 0.085 (CI 95% = 0.018-0.151; P = 0.036) and 0.063 (CI 95% = 0.019-0.106; P = 0.013), respectively., Conclusions: We recommend that fertility clinics, network organizations and authorities for infertility counsellors make their support available to parents for extended periods after their treatment. Further qualitative studies are necessary to assess how to relieve unmet support needs during donor sperm treatment., (Copyright © 2021 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2022
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5. Psychosocial counselling in donor sperm treatment: unmet needs and mental health among heterosexual, lesbian and single women.
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Schrijvers AM, van Rooij FB, de Reus E, Schoonenberg M, van der Veen F, Visser M, Bos HMW, and Mochtar MH
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- Adult, Female, Heterosexuality psychology, Humans, Pregnancy, Surveys and Questionnaires, Women, Counseling, Health Services Needs and Demand, Mental Health, Sexual and Gender Minorities psychology
- Abstract
Research Question: What are the unmet needs after psychosocial counselling and mental health of women who opt for donor sperm treatment (DST), and are unmet counselling needs related to their mental health?, Design: This quantitative study included women in a heterosexual relationship (n = 19), women in a lesbian relationship (n = 25) and single women (n = 51) who opted for DST. Women were included if they had passed the DST intake procedure at a Dutch fertility clinic, were not pregnant and had no previous donor-child. Unmet needs were measured by a self-developed questionnaire based on specific topics identified in a previous qualitative study with added items from experts in the field of DST. The Adult Self Report was used to measure mental health. Relationships between unmet counselling needs and mental health were explored by multiple regression analyses., Results: Fifty-two women (55%) reported unmet counselling needs. Women in heterosexual relationships mostly had unmet counselling needs on the topics of the decision to opt for DST (n = 11, 58%) and non-genetic parenthood (n = 11, 58%); women in lesbian relationships (n = 10, 40%) and single women (n = 14, 27%) mostly had unmet needs on the topic of choosing a sperm donor. In general, women had good mental health, but 13 (14%) met the criteria for clinical mental health problems. Women with more unmet counselling needs also had more mental health problems., Conclusions: Evidence-based guidelines for psychosocial counselling in DST should be developed. Only then can counselling be improved and be fit for purpose., (Copyright © 2020 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2020
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6. Oocyte or ovarian tissue banking: decision-making in women aged 35 years or older facing age-related fertility decline.
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Balkenende EME, van Rooij FB, van der Veen F, and Goddijn M
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- Adult, Cryopreservation, Female, Fertility physiology, Fertility Preservation psychology, Humans, Oocyte Retrieval, Decision Making, Fertility Preservation methods, Oocytes, Tissue Banks
- Abstract
Research Question: Women who face age-related fertility decline have the option to safeguard future reproductive potential by banking oocytes or ovarian tissue. What are the methods that women prefer and what factors are important in their decision-making?, Design: Qualitative interview study, participants were recruited through monthly information sessions at a university hospital on oocyte banking, postings on social media, websites and newsletters and snowball sampling. Women had to be aged 35 years or older, single, childless and with a possible future desire for motherhood. Key concepts of the Health Belief Model were used as framework for the analyses., Results: In total, 15 women participated in this qualitative study. For oocyte banking, they mentioned chances of success, extra time and faith in the technique and healthcare professionals as benefits. Risks for themselves or future children and costs were considered to be barriers in decision making. For ovarian tissue banking, the chances of success, the possibility of natural conception, the time investment and effect on menopausal symptoms were seen as benefits, and lack of experience and lack of information were considered barriers for themselves or their future children. Overall, they considered the procedures involved in oocyte banking as relatively 'easy', whereas ovarian tissue banking was seen as a more invasive procedure., Conclusion: Most women preferred oocyte banking over ovarian tissue banking because of its relative convenience. Future quantitative research in a larger cohort is necessary to confirm the findings and provide more insight into the relative importance of the different factors influencing women's decision., (Copyright © 2020 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2020
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7. Guideline-based quality indicators for early pregnancy assessment units.
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van den Berg MMJ, Hajenius PJ, Mol F, Hermens RPMG, van der Veen F, Goddijn M, and van den Boogaard E
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- Consensus, Female, Humans, Pregnancy, Quality Indicators, Health Care, Prenatal Care standards
- Abstract
Research Question: What valid guideline-based quality indicators can measure quality of care in early pregnancy assessment units (EPAU)?, Design: The systematic RAND-modified Delphi method was used to develop an indicator set from four evidence-based guidelines. An international expert panel was assembled to extract recommendations from these guidelines to establish quality indicators., Results: A total of 119 recommendations were extracted. Eleven recommendations received a high median score and top five score above the 75th percentile and were selected as key recommendations. The expert panel reassessed 15 high score recommendations and top five score between the 50th and 75th percentile as well as one high score recommendation without consensus. Eight of these 16 recommendations were selected in the second round as key recommendations. The key recommendations were formulated into a set of 19 quality indicators, summarized as follows: women referred to an EPAU could be seen within 24 h and receive a clear explanation on treatment options; designated senior staff members could be responsible for the unit and staff could have had ultrasound training; protocols could be available for daily practice covering all treatment options for miscarriage and ectopic pregnancy; and an EPAU could have access to urine pregnancy testing and serum HCG assays., Conclusions: Nineteen quality indicators to measure early pregnancy care provided by EPAU were identified., (Copyright © 2019 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
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- 2020
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8. Gonadotrophins or clomiphene citrate in couples with unexplained infertility undergoing intrauterine insemination: a cost-effectiveness analysis.
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Danhof NA, van Wely M, Repping S, van der Ham DP, Klijn N, Janssen ICAH, Rijn-van Weert JM, Twisk M, Traas MAF, Pelinck MJ, Perquin DAM, Boks DES, Sluijmer A, Mol BWJ, van der Veen F, and Mochtar MH
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- Adult, Cost-Benefit Analysis, Female, Humans, Male, Ovulation Induction methods, Pregnancy, Treatment Outcome, Clomiphene therapeutic use, Fertilization in Vitro economics, Gonadotropins therapeutic use, Infertility economics, Insemination, Artificial economics, Ovulation Induction economics
- Abstract
Research Question: What is the cost-effectiveness of gonadotrophins compared with clomiphene citrate in couples with unexplained subfertility undergoing intrauterine insemination (IUI) with ovarian stimulation under strict cancellation criteria?, Design: A cost-effectiveness analysis alongside a randomized controlled trial (RCT). Between July 2013 and March 2016, 738 couples were randomized to gonadotrophins (369) or clomiphene citrate (369) in a multicentre RCT in the Netherlands. The direct medical costs of both strategies were compared. Direct medical costs included costs of medication, cycle monitoring, insemination and, if applicable, pregnancy monitoring. Non-parametric bootstrap resampling was used to investigate the effect of uncertainty in estimates. The cost-effectiveness analysis was performed according to intention-to-treat. The incremental cost-effectiveness ratio (ICER) between gonadotrophins and clomiphene citrate for ongoing pregnancy and live birth was assessed., Results: The mean costs per couple were €1534 for gonadotrophins and €1067 for clomiphene citrate (mean difference of €468; 95% confidence interval [CI] €464-472). As ongoing pregnancy rates were 31% in women allocated to gonadotrophins and 26% in women allocated to clomiphene citrate (relative risk 1.16, 95% CI 0.93-1.47), the ICER was €21,804 (95% CI €11,628-31,980) per additional ongoing pregnancy with gonadotrophins and €17,044 (95% CI €8998-25,090) per additional live birth with gonadotrophins., Conclusions: Gonadotrophins are more expensive compared with clomiphene citrate in couples with unexplained subfertility undergoing IUI with adherence to strict cancellation criteria, without being significantly more effective., (Copyright © 2019. Published by Elsevier Ltd.)
- Published
- 2020
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9. Reproductive outcomes after oocyte banking for fertility preservation.
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Balkenende EM, Dahhan T, van der Veen F, Repping S, and Goddijn M
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- Adult, Female, Follow-Up Studies, Humans, Male, Pregnancy, Pregnancy Rate, Treatment Outcome, Cryopreservation, Fertility Preservation, Oocytes
- Abstract
Research Question: What are the reproductive outcomes of women who bank oocytes for fertility preservation?, Design: A prospective follow-up study of a cohort of 327 women who banked their oocytes for fertility preservation was carried out between July 2009 and August 2015. The indications for oocyte banking and outcomes of ovarian stimulation were collected from medical files. Follow-up data were obtained from an additional questionnaire., Results: In total, 243 out of 327 women (74%) responded and 228 women (70%) consented to participate and returned the questionnaire. The median time to follow-up of these women was 31 months. A total of 101 women (44%) were trying, or had tried, to become pregnant after oocyte banking, of which 66 became pregnant (65%). Five women reported an unintended pregnancy. Of these, 71 women became pregnant, 76% conceived naturally, 7% through intracytoplasmic sperm injection with their vitrified-warmed oocytes and 17% by other medically assisted reproduction treatments. Six women attempted to achieve a pregnancy using their banked oocytes. Of the six pregnancies achieved in five women, two resulted in a live birth. A total of thirty-eight women reported a live birth at the time of follow-up., Conclusion: Oocyte banking can be considered a form of risk management or preventive medicine because it is not certain that the women will experience sterility in the future., (Copyright © 2018 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2018
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10. Gonadotrophins versus clomifene citrate with or without intrauterine insemination in women with normogonadotropic anovulation and clomifene failure (M-OVIN): a randomised, two-by-two factorial trial.
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Weiss NS, Nahuis MJ, Bordewijk E, Oosterhuis JE, Smeenk JM, Hoek A, Broekmans FJ, Fleischer K, de Bruin JP, Kaaijk EM, Laven JS, Hendriks DJ, Gerards MH, van Rooij IA, Bourdrez P, Gianotten J, Koks C, Lambalk CB, Hompes PG, van der Veen F, Mol BWJ, and van Wely M
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- Adult, Female, Humans, Pregnancy, Pregnancy Outcome, Pregnancy Rate, Anovulation therapy, Clomiphene therapeutic use, Fertility Agents, Female therapeutic use, Gonadotropins therapeutic use, Infertility, Female therapy, Insemination
- Abstract
Background: In many countries, clomifene citrate is the treatment of first choice in women with normogonadotropic anovulation (ie, absent or irregular ovulation). If these women ovulate but do not conceive after several cycles with clomifene citrate, medication is usually switched to gonadotrophins, with or without intrauterine insemination. We aimed to assess whether switching to gonadotrophins is more effective than continuing clomifene citrate, and whether intrauterine insemination is more effective than intercourse., Methods: In this two-by-two factorial multicentre randomised clinical trial, we recruited women aged 18 years and older with normogonadotropic anovulation not pregnant after six ovulatory cycles of clomifene citrate (maximum of 150 mg daily for 5 days) from 48 Dutch hospitals. Women were randomly assigned using a central password-protected internet-based randomisation programme to receive six cycles with gonadotrophins plus intrauterine insemination, six cycles with gonadotrophins plus intercourse, six cycles with clomifene citrate plus intrauterine insemination, or six cycles with clomifene citrate plus intercourse. Clomifene citrate dosages varied from 50 to 150 mg daily orally and gonadotrophin starting dose was 50 or 75 IU daily subcutaneously. The primary outcome was conception leading to livebirth within 8 months after randomisation defined as any baby born alive after a gestational age beyond 24 weeks. Primary analysis was by intention to treat. We made two comparisons, one in which gonadotrophins were compared with clomifene citrate and one in which intrauterine insemination was compared with intercourse. This completed study is registered with the Netherlands Trial Register, number NTR1449., Findings: Between Dec 8, 2008, and Dec 16, 2015, we randomly assigned 666 women to gonadotrophins and intrauterine insemination (n=166), gonadotrophins and intercourse (n=165), clomifene citrate and intrauterine insemination (n=163), or clomifene citrate and intercourse (n=172). Women allocated to gonadotrophins had more livebirths than those allocated to clomifene citrate (167 [52%] of 327 women vs 138 [41%] of 334 women, relative risk [RR] 1·24 [95% CI 1·05-1·46]; p=0·0124). Addition of intrauterine insemination did not increase livebirths compared with intercourse (161 [49%] vs 144 [43%], RR 1·14 [95% CI 0·97-1·35]; p=0·1152). Multiple pregnancy rates for the two comparisons were low and not different. There were three adverse events: one child with congenital abnormalities and one stillbirth in two women treated with clomifene citrate, and one immature delivery due to cervical insufficiency in a woman treated with gonadotrophins., Interpretation: In women with normogonadotropic anovulation and clomifene citrate failure, a switch of treatment to gonadotrophins increased the chance of livebirth over treatment with clomifene citrate; there was no evidence that addition of intrauterine insemination does so., Funding: The Netherlands Organization for Health Research and Development., (Copyright © 2018 Elsevier Ltd. All rights reserved.)
- Published
- 2018
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11. A revised prediction model for natural conception.
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Bensdorp AJ, van der Steeg JW, Steures P, Habbema JDF, Hompes PGA, Bossuyt PMM, van der Veen F, Mol BWJ, and Eijkemans MJC
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- Adult, Female, Humans, Male, Prospective Studies, Fertilization, Infertility, Models, Statistical
- Abstract
One of the aims in reproductive medicine is to differentiate between couples that have favourable chances of conceiving naturally and those that do not. Since the development of the prediction model of Hunault, characteristics of the subfertile population have changed. The objective of this analysis was to assess whether additional predictors can refine the Hunault model and extend its applicability. Consecutive subfertile couples with unexplained and mild male subfertility presenting in fertility clinics were asked to participate in a prospective cohort study. We constructed a multivariable prediction model with the predictors from the Hunault model and new potential predictors. The primary outcome, natural conception leading to an ongoing pregnancy, was observed in 1053 women of the 5184 included couples (20%). All predictors of the Hunault model were selected into the revised model plus an additional seven (woman's body mass index, cycle length, basal FSH levels, tubal status,history of previous pregnancies in the current relationship (ongoing pregnancies after natural conception, fertility treatment or miscarriages), semen volume, and semen morphology. Predictions from the revised model seem to concur better with observed pregnancy rates compared with the Hunault model; c-statistic of 0.71 (95% CI 0.69 to 0.73) compared with 0.59 (95% CI 0.57 to 0.61)., (Copyright © 2017. Published by Elsevier Ltd.)
- Published
- 2017
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12. Reporting multiple cycles in trials on medically assisted reproduction.
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Scholten I, Braakhekke M, Limpens J, Hompes PG, van der Veen F, Mol BW, and Gianotten J
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- Data Interpretation, Statistical, Female, Humans, Pregnancy, Pregnancy Rate, Randomized Controlled Trials as Topic, Reproductive Techniques, Assisted, Research Design
- Abstract
Trials assessing effectiveness in medically assisted reproduction (MAR) should aim to study the desired effect over multiple cycles, as this reflects clinical practice and captures the relevant perspective for the couple. The aim of this study was to assess the extent to which multiple cycles are reported in MAR trials. A sample of randomized controlled trials (RCT) was collected on MAR, published in four time periods, in 11 pre-specified peer-reviewed journals; 253 trials were included: 196 on IVF, 37 on intrauterine insemination and 20 on ovulation induction. Forty-eight (19%) reported on multiple cycles, which was significantly more common in trials on intrauterine insemination and ovulation induction compared with trials on IVF (P < 0.01). Both trials on IVF were multi-centre trials, and those using live birth as primary outcome, reported significantly more often on multiple cycles (OR 3.7 CI 1.1 to 12.5) and (OR 8.7 CI 1.8 to 40.3), respectively. Trials designed to compare protocol variations reported multiple cycles less often (OR 0.07 CI 0.01 to 0.74). Most RCT on MAR, especially those on IVF, do not report cumulative pregnancy rates. As not all women become pregnant in their first cycle, the clinical significance of these trials is limited., (Copyright © 2016 Reproductive Healthcare Ltd. All rights reserved.)
- Published
- 2016
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13. The updated Cochrane review 2014 on GnRH agonist trigger: an indispensable piece of information for the clinician.
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Youssef MA, Van der Veen F, Al-Inany HG, Mochtar MH, Griesinger G, Aboulfoutoh I, and van Wely M
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- Female, Humans, Pregnancy, Gonadotropin-Releasing Hormone agonists
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- 2016
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14. Early pregnancy care over time: should we promote an early pregnancy assessment unit?
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van den Berg MM, Goddijn M, Ankum WM, van Woerden EE, van der Veen F, van Wely M, and Hajenius PJ
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- Female, Health Care Costs, Humans, Karyotyping, Netherlands, Pregnancy, Abortion, Habitual genetics, Pregnancy, Ectopic surgery
- Abstract
In this observational study, the effect of the introduction of the first Early Pregnancy Assessment Unit (EPAU) in a university hospital in The Netherlands in 2008 on early pregnancy care is analysed. Derivatives of quality of care were measured before and after the establishment of the EPAU, with the aim of reducing unnecessary care. Care within three time periods was measured: 2006, 2009 and 2012. In 2006, 14% of women who had experienced a miscarriage were admitted to the hospital, whereas in 2009 and 2012 no women were admitted. The surgical management rate for miscarriage decreased from 79% (2006) to 6% (2009) and 28% (2012). Karyotyping of couples who had experienced recurrent miscarriage decreased from 100% (2006) to 17% (2009) and 33% (2012). The surgical management rate for ectopic pregnancy decreased from 50% (2006) to 25% (2009) and 29% (2012). The mean total cost per woman treated in 2006 was €1111 (95% CI €808 to 1426), €436 (95% CI €307 to 590) in 2009 and €633 (95% CI €586 to 788) in 2012. We can therefore conclude that an EPAU results in higher quality and cost-effective care, and has a positive effect on early pregnancy care., (Copyright © 2015 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2015
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15. Cost-effectiveness of assisted conception for male subfertility.
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Moolenaar LM, Cissen M, de Bruin JP, Hompes PG, Repping S, van der Veen F, and Mol BW
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- Adult, Cohort Studies, Female, Humans, Male, Ovulation Induction, Cost-Benefit Analysis, Infertility, Male economics, Reproductive Techniques, Assisted
- Abstract
Intrauterine insemination (IUI), with or without ovarian stimulation, IVF and intracytoplasmatic sperm injection (ICSI) are frequently used treatments for couples with male subfertility. No consensus has been reached on specific cut-off values for semen parameters, at which IVF would be advocated over IUI and ICSI over IVF. The aim of this study was to evaluate the cost-effectiveness of interventions for male subfertility according to total motile sperm count (TMSC). A computer-simulated cohort of subfertile women aged 30 years with a partner was analysed with a pre-wash TMSC of 0 to 10 million. Three treatments were evaluated: IUI with and without controlled ovarian stimulation; IVF; and ICSI. Main outcome was expected live birth; secondary outcomes were cost per couple and the incremental cost-effectiveness ratio. The choice of IVF over IUI with ovarian stimulation and ICSI over IVF depends on the willingness to pay for an extra live birth. If only cost per live birth is considered for each treatment, above a pre-wash TMSC of 3 million, IUI is less costly than IVF and, below a pre-wash, TMSC of 3 million ICSI is less costly. Effectiveness needs to be confirmed in a large randomized controlled trial., (Copyright © 2015 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2015
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16. Selection of embryos for transfer in IVF: ranking embryos based on their implantation potential using morphological scoring.
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van Loendersloot L, van Wely M, van der Veen F, Bossuyt P, and Repping S
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- Female, Humans, Male, Models, Biological, Ovulation Induction, Embryo Implantation, Embryo Transfer, Fertilization in Vitro
- Abstract
The selection of embryos based on morphology is still the core of daily laboratory practice in IVF/intracytoplasmic sperm injection. At present, the selection of embryos is primarily based on experience and local protocols. Since an evidence-based ranking strategy for embryos on day 3 is currently lacking, this work constructed a multivariable prediction model to rank embryos according to their implantation potential. A total of 6021 fresh embryo transfers between January 2004 and July 2009 were included, eight potential predictive factors were evaluated and a prediction model was developed using multivariable logistic regression. The model was externally validated with data from couples treated between August 2009 and September 2011 in the same clinic. Five factors were included in the final prediction model: early cleavage, number of blastomeres on days 2 and 3 and morphological score and presence of morula on day 3. With validation, the model showed moderate discriminative capacity (c-statistic 0.70) and calibrated well and was able to distinguish embryos with high ongoing implantation potential from embryos with moderate or low ongoing implantation potential. The model can be used by embryologists as an objective tool to rank embryos according to implantation potential, thereby aiding the selection of embryos for transfer., (Copyright © 2014 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2014
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17. Cost-effectiveness of treatment strategies in women with PCOS who do not conceive after six cycles of clomiphene citrate.
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Moolenaar LM, Nahuis MJ, Hompes PG, van der Veen F, and Mol BW
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- Adult, Clomiphene economics, Cost-Benefit Analysis, Female, Fertility Agents, Female economics, Fertilization in Vitro economics, Humans, Infertility, Female etiology, Polycystic Ovary Syndrome complications, Pregnancy, Pregnancy Rate, Time-to-Pregnancy, Treatment Failure, Clomiphene therapeutic use, Fertility Agents, Female therapeutic use, Infertility, Female therapy, Ovulation Induction economics, Polycystic Ovary Syndrome economics, Polycystic Ovary Syndrome therapy
- Abstract
This study evaluated the cost-effectiveness of treatments for women with polycystic ovary syndrome (PCOS) who ovulate on clomiphene citrate but do not conceive after six cycles. A decision-analytic framework was developed for six scenarios: (1) three cycles of IVF; (2) continuation of clomiphene citrate for six cycles, followed by three cycles of IVF in case of no birth; (3) six cycles of gonadotrophins and three cycles of IVF; (4) 12 cycles of gonadotrophins and three cycles of IVF; (5) continuation of clomiphene citrate for six cycles, six cycles of gonadotrophins and three cycles of IVF; (6) continuation of clomiphene citrate for six cycles, 12 cycles of gonadotrophins and three cycles of IVF. Two-year cumulative birth rates were 58%, 74%, 89%, 97%, 93% and 98% and costs per couple were € 9518, € 7530, € 9711, € 9764, € 7651 and € 7684 for scenarios 1-6, respectively. Scenario 2 was the lowest cost option. The extra cost for at least one live birth in scenario 5 was € 629 and in scenario 6 € 630. In these subjects, continuation of treatment for six cycles of clomiphene citrate, 6 or 12 cycles of gonadotrophins and IVF is potentially cost-effective. These results should be confirmed in a randomized clinical trial., (Copyright © 2014 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2014
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18. Oocyte banking for anticipated gamete exhaustion (AGE) is a preventive intervention, neither social nor nonmedical.
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Stoop D, van der Veen F, Deneyer M, Nekkebroeck J, and Tournaye H
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- Adult, Elective Surgical Procedures psychology, Female, Humans, Primary Prevention methods, Social Conformity, Biological Specimen Banks, Cryopreservation, Fertility Preservation psychology, Infertility, Female prevention & control, Oocytes, Primary Ovarian Insufficiency therapy
- Abstract
The scope of female fertility preservation through cryopreservation of oocytes or ovarian cortex has widened from mainly oncological indications to a variety of fertility-threatening conditions. So far, no specific universally accepted denomination name has been given to cryopreservation of oocytes or ovarian cortex for the prevention of age-related fertility decline. We argue that the commonly used phrases 'social' and 'nonmedical freezing' to denote the indication for cryopreservation are not entirely correct. We suggest 'AGE banking', as this has not only the advantage of being catchy but also depicts the exact indication for the strategy, anticipated gamete exhaustion., (Copyright © 2014 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2014
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19. Salpingotomy versus salpingectomy in women with tubal pregnancy (ESEP study): an open-label, multicentre, randomised controlled trial.
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Mol F, van Mello NM, Strandell A, Strandell K, Jurkovic D, Ross J, Barnhart KT, Yalcinkaya TM, Verhoeve HR, Graziosi GCM, Koks CAM, Klinte I, Hogström L, Janssen ICAH, Kragt H, Hoek A, Trimbos-Kemper TCM, Broekmans FJM, Willemsen WNP, Ankum WM, Mol BW, van Wely M, van der Veen F, and Hajenius PJ
- Subjects
- Adult, Europe, Female, Humans, Pregnancy, Treatment Outcome, United States, Fallopian Tubes surgery, Gynecologic Surgical Procedures methods, Pregnancy, Tubal surgery, Salpingectomy
- Abstract
Background: Tubal ectopic pregnancy can be surgically treated by salpingectomy, in which the affected Fallopian tube is removed, or salpingotomy, in which the tube is preserved. Despite potentially increased risks of persistent trophoblast and repeat ectopic pregnancy, salpingotomy is often preferred over salpingectomy because the preservation of both tubes is assumed to offer favourable fertility prospects, although little evidence exists to support this assumption. We aimed to assess whether salpingotomy would improve rates of ongoing pregnancy by natural conception compared with salpingectomy., Methods: In this open-label, multicentre, international, randomised controlled trial, women aged 18 years and older with a laparoscopically confirmed tubal pregnancy and a healthy contralateral tube were randomly assigned via a central internet-based randomisation program to receive salpingotomy or salpingectomy. The primary outcome was ongoing pregnancy by natural conception. Differences in cumulative ongoing pregnancy rates were expressed as a fecundity rate ratio with 95% CI, calculated by Cox proportional-hazards analysis with a time horizon of 36 months. Secondary outcomes were persistent trophoblast and repeat ectopic pregnancy (expressed as relative risks [RRs] with 95% CIs) and ongoing pregnancy after ovulation induction, intrauterine insemination, or IVF. The researchers who collected data for fertility outcomes were masked to the assigned intervention, but patients and the investigators who analysed the data were not. All endpoints were analysed by intention to treat. We also did a (non-prespecified) meta-analysis that included the findings from the present trial. This trial is registered, number ISRCTN37002267., Findings: 446 women were randomly assigned between Sept 24, 2004, and Nov 29, 2011, with 215 allocated to salpingotomy and 231 to salpingectomy. Follow-up was discontinued on Feb 1, 2013. The cumulative ongoing pregnancy rate was 60·7% after salpingotomy and 56·2% after salpingectomy (fecundity rate ratio 1·06, 95% CI 0·81-1·38; log-rank p=0·678). Persistent trophoblast occurred more frequently in the salpingotomy group than in the salpingectomy group (14 [7%] vs 1 [<1%]; RR 15·0, 2·0-113·4). Repeat ectopic pregnancy occurred in 18 women (8%) in the salpingotomy group and 12 (5%) women in the salpingectomy group (RR 1·6, 0·8-3·3). The number of ongoing pregnancies after ovulation induction, intrauterine insemination, or IVF did not differ significantly between the groups. 43 (20%) women in the salpingotomy group were converted to salpingectomy during the initial surgery because of persistent tubal bleeding. Our meta-analysis, which included our own results and those of one other study, substantiated the results of the trial., Interpretation: In women with a tubal pregnancy and a healthy contralateral tube, salpingotomy does not significantly improve fertility prospects compared with salpingectomy., Funding: Netherlands Organisation for Health Research and Development (ZonMW), Region Västra Götaland Health & Medical Care Committee., (Copyright © 2014 Elsevier Ltd. All rights reserved.)
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- 2014
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20. IVF with planned single-embryo transfer versus IUI with ovarian stimulation in couples with unexplained subfertility: an economic analysis.
- Author
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van Rumste MM, Custers IM, van Wely M, Koks CA, van Weering HG, Beckers NG, Scheffer GJ, Broekmans FJ, Hompes PG, Mochtar MH, van der Veen F, and Mol BW
- Subjects
- Costs and Cost Analysis, Female, Fertilization in Vitro methods, Humans, Male, Ovulation Induction, Pregnancy, Pregnancy Outcome, Pregnancy Rate, Single Embryo Transfer, Fertilization in Vitro economics, Infertility therapy
- Abstract
Couples with unexplained subfertility are often treated with intrauterine insemination (IUI) with ovarian stimulation, which carries the risk of multiple pregnancies. An explorative randomized controlled trial was performed comparing one cycle of IVF with elective single-embryo transfer (eSET) versus three cycles of IUI-ovarian stimulation in couples with unexplained subfertility and a poor prognosis for natural conception, to assess the economic burden of the treatment modalities. The main outcome measures were ongoing pregnancy rates and costs. This study randomly assigned 58 couples to IVF-eSET and 58 couples to IUI-ovarian stimulation. The ongoing pregnancy rates were 24% in with IVF-eSET versus 21% with IUI-ovarian stimulation, with two and three multiple pregnancies, respectively. The mean cost per included couple was significantly different: €2781 with IVF-eSET and €1876 with IUI-ovarian stimulation (P<0.01). The additional costs per ongoing pregnancy were €2456 for IVF-eSET. In couples with unexplained subfertility, one cycle of IVF-eSET cost an additional €900 per couple compared with three cycles of IUI-ovarian stimulation, for no increase in ongoing pregnancy rates or decrease in multiple pregnancies. When IVF-eSET results in higher ongoing pregnancy rates, IVF would be the preferred treatment. Couples that have been trying to conceive unsuccessfully are often treated with intrauterine insemination (IUI) and medication to improve egg production (ovarian stimulation). This treatment carries the risk of multiple pregnancies like twins. We performed an explorative study among those couples that had a poor prognosis for natural conception. One cycle of IVF with transfer of one selected embryo (elective single-embryo transfer, eSET) was compared with three cycles of IUI-ovarian stimulation. The aim of this study was to assess the economic burden of both treatments. The Main outcome measures were number of good pregnancies above 12weeks and costs. We randomly assigned 58 couples to IVF-eSET and 58 couples to IUI-ovarian stimulation. The ongoing pregnancy rates were comparable: 24% with IVF-eSET versus 21% with IUI-ovarian stimulation. There were two multiple pregnancies with IVF-eSET and three multiple pregnancies with IUI-ovarian stimulation. The mean cost per included couple was significantly different, €2781 with IVF-eSET and €1876 with IUI-ovarian stimulation. The additional costs per ongoing pregnancy were €2456 for IVF-eSET. In couples with unexplained subfertility, one cycle of IVF-eSET costed an additional €900 per couple compared to three cycles of IUI-ovarian stimulation, for no increase in ongoing pregnancy rates or decrease in multiple pregnancies. We conclude that IUI-ovarian stimulation is the preferred treatment to start with. When IVF-eSET results in a higher ongoing pregnancy rate (>38%), IVF would be the preferred treatment., (Copyright © 2013 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2014
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21. Pregnancy and twinning rates using a tailored embryo transfer policy.
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van Loendersloot L, van Wely M, Goddijn M, Repping S, Bossuyt P, and van der Veen F
- Subjects
- Adult, Age Factors, Blastocyst physiology, Cohort Studies, Female, Humans, Netherlands, Pregnancy, Prognosis, Prospective Studies, Retrospective Studies, Embryo Transfer methods, Health Policy, Pregnancy Rate, Twins statistics & numerical data
- Abstract
A tailored embryo transfer policy based on the prognostic profile of the couple was prospectively evaluated. Single-embryo transfer (SET) was performed, followed by double-embryo transfer (DET) in frozen-thawed embryo transfer cycles in women with a good prognosis (<35 years, first cycle, ⩾1 top-quality embryo). DET was performed in both fresh and frozen cycles in women with an intermediate prognosis (<35 years, first cycle and no top-quality embryo available, or <35 years and ⩾1 failed cycles, or 35-38 years). Triple-embryo transfer (TET) in both fresh and frozen cycles was performed in women with a poor prognosis (⩾39 years). The cumulative ongoing pregnancy rate in the cycles of women with a good prognosis was 43% with a multiple pregnancy rate of 2%, in the cycles of women with an intermediate prognosis 27% and 23% and in the cycles of women with a poor prognosis 18% and 13%, respectively. These findings can be used to guide current practice: i.e. performing SET in women with a good prognosis and TET in women with a poor prognosis. The embryo transfer strategy in women with an intermediate prognosis requires further improvement, possibly by refining the prognosis according to the ovarian response after ovarian stimulation., (Copyright © 2013 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2013
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22. Patients' preferences for intrauterine insemination or in-vitro fertilization.
- Author
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van Weert JM, van den Broek J, van der Steeg JW, van der Veen F, Flierman PA, Mol BW, and Steures P
- Subjects
- Adult, Female, Humans, Male, Pregnancy, Pregnancy Rate, Pregnancy, Multiple, Risk Factors, Fertilization in Vitro, Insemination, Artificial, Homologous, Patient Satisfaction
- Abstract
Patients' preferences for intrauterine insemination (IUI) relative to IVF were assessed using trade-off interviews, and the number of IUI cycles they would undergo before changing to IVF. A total of 73 couples undergoing IUI with a total of 111 interviews were included. Scenarios were offered where pregnancy chance after IUI was varied against a fixed pregnancy rate after IVF. The impact of multiple pregnancy risk on the couple's preference was also investigated. Interviews were held before starting IUI, after three or four IUI cycles and after six IUI cycles. With decreasing probability of ongoing pregnancy after IUI, an increasing number of couples switched their preference from IUI to IVF. This switch occurred after six cycles at a significantly higher (P = 0.01) mean cumulative pregnancy rate (53%) compared with other groups (31%). With increasing risk of multiple pregnancy, preference for IUI declined only slightly, with mean risks of 73, 78 and 83% of a multiple pregnancy for the three groups respectively. In conclusion, at baseline and after three cycles of IUI the majority of couples undergoing IUI preferred continuation of IUI over IVF. A clear shift in preference towards IVF occurred after six cycles. Risk of multiple pregnancy did not affect preference for IUI with ovarian stimulation.
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- 2007
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23. Intrauterine insemination in The Netherlands.
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Steures P, van der Steeg JW, Hompes PG, van der Veen F, and Mol BW
- Subjects
- Female, Humans, Male, Netherlands, Ovulation Induction, Pregnancy, Pregnancy Rate, Pregnancy, Multiple, Retrospective Studies, Treatment Outcome, Infertility therapy, Insemination, Artificial standards
- Abstract
The aim of this retrospective study was to assess the results of intrauterine insemination (IUI) in The Netherlands, using data from 2003 taken from hospital annual reports and reports from individual gynaecologists. By extrapolation, the total number of IUI cycles performed that year nationwide, and the related outcomes, was estimated. IUI was performed in 91 of the country's 101 hospitals. Of these, 58 (64%) registered their IUI results and performed 19,846 IUI cycles. The mean pregnancy rate per cycle was 9.0% and the ongoing pregnancy rate per cycle was 7.3%. Multiple pregnancies occurred in 9.5% of the ongoing pregnancies. Extrapolation of the data suggested that approximately 28,500 IUI cycles were performed, of which approximately 2000 resulted in an ongoing pregnancy. The number of multiple pregnancies following IUI was estimated to be 180 (9.0%). According to the national IVF registry, 9761 IVF cycles were started in 2003, resulting in 2,028 ongoing pregnancies (20.8% per cycle) and 439 twin pregnancies (21.6% per ongoing pregnancy). In conclusion, the pregnancy rate per IUI cycle in The Netherlands (9.0%) was comparable with that reported in the international literature (8.7%). The contribution made by IUI to the number of multiple pregnancies in The Netherlands was much smaller than the contribution made by IVF.
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- 2007
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24. Intrauterine insemination with controlled ovarian hyperstimulation versus expectant management for couples with unexplained subfertility and an intermediate prognosis: a randomised clinical trial.
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Steures P, van der Steeg JW, Hompes PG, Habbema JD, Eijkemans MJ, Broekmans FJ, Verhoeve HR, Bossuyt PM, van der Veen F, and Mol BW
- Subjects
- Adult, Female, Humans, Male, Pregnancy, Prognosis, Sperm Count, Treatment Outcome, Infertility therapy, Insemination, Artificial, Homologous methods, Ovulation Induction methods
- Abstract
Background: Intrauterine insemination with controlled ovarian hyperstimulation is commonly used as first-line treatment for couples with unexplained subfertility. Since such treatment increases the risk of multiple pregnancy, a couple's chances of achieving an ongoing pregnancy without it should be considered to identify those most likely to benefit from treatment. We aimed to assess the incremental effectiveness of intrauterine insemination with controlled ovarian hyperstimulation compared with expectant management in couples with unexplained subfertility and an intermediate prognosis of a spontaneous ongoing pregnancy., Methods: 253 couples with unexplained subfertility and a 30-40% probability of a spontaneous ongoing pregnancy within 12 months were randomly assigned either intrauterine insemination with controlled ovarian hyperstimulation for 6 months or expectant management for 6 months. The primary endpoint of this hospital-based study was ongoing pregnancy within 6 months. Analysis was by intention to treat. This trial is registered with the Dutch Trial Register and as an International Standard Randomised Clinical Trial, number ISRCTN72675518., Findings: Of the 253 couples enrolled, 127 were assigned intrauterine insemination with controlled ovarian hyperstimulation and 126 expectant management. In the intervention group, 42 (33%) women conceived and 29 (23%) pregnancies were ongoing. In the expectant management group, 40 (32%) women conceived and 34 (27%) pregnancies were ongoing (relative risk 0.85, 95% CI 0.63-1.1). There was one twin pregnancy in each study group, and one woman in the intervention group conceived triplets., Interpretation: A large beneficial effect of intrauterine insemination with controlled ovarian hyperstimulation in couples with unexplained subfertility and an intermediate prognosis can be excluded. Expectant management for 6 months is therefore justified in these couples.
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- 2006
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25. Which factors play a role in clinical decision-making in subfertility?
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van der Steeg JW, Steures P, Eijkemans MJ, Habbema JD, Bossuyt PM, Hompes PG, van der Veen F, and Mol BW
- Subjects
- Adult, Evidence-Based Medicine, Female, Follicle Stimulating Hormone blood, Humans, Infertility diagnosis, Male, Maternal Age, Parity, Practice Guidelines as Topic, Predictive Value of Tests, Pregnancy, Pregnancy Outcome, Sperm Motility, Time Factors, Decision Making, Fertilization in Vitro psychology, Gynecology standards, Infertility psychology, Physician-Patient Relations
- Abstract
Sixteen vignettes of subfertile couples were constructed by varying fertility history, post-coital test, sperm motility, FSH concentration and Chlamydia antibody titre (CAT). Thirty-five gynaecologists estimated probabilities of treatment-independent pregnancy, intrauterine insemination (IUI) and IVF. Thereafter, they chose IUI, IVF or no treatment. The relative contribution of each factor to probability estimates and to subsequent treatment decisions was calculated. Duration of subfertility and maternal age were the most important contributors for gynaecologists' estimates of treatment-independent pregnancy [relative contribution (RC) 41, 26%]. Maternal age and FSH concentration were the most important contributors in the estimates for IUI (RC: 51, 25%) and for IVF (RC: 64, 31%). The decision to start IVF was mainly determined by maternal age, duration of subfertility, FSH concentration and CAT. The relative contribution of maternal age and duration of subfertility was in concordance with existing prediction models, whereas previous pregnancy and FSH concentration were under- and overestimated respectively. In conclusion, maternal age, duration of subfertility and FSH concentration are the main factors in clinical decision-making in subfertility. Gynaecologists overestimate the importance of FSH concentration, but underestimate that of a previous pregnancy, as compared with their importance reported in prediction models and guidelines.
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- 2006
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26. IUI in male subfertility: are we able to select the proper patients?
- Author
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van Weert JM, Repping S, van der Steeg JW, Steures P, van der Veen F, and Mol BW
- Subjects
- Adult, Aged, Antibodies, Female, Humans, Infertility, Female therapy, Male, Middle Aged, Models, Biological, Pregnancy, Pregnancy Outcome, Retrospective Studies, Sperm Count, Sperm Motility, Spermatozoa immunology, Infertility, Male therapy, Insemination, Artificial, Patient Selection
- Abstract
There is at this time no indication as to which semen parameters from the fertility work-up discriminate between couples with male subfertility who will and will not benefit from intrauterine insemination (IUI). This study evaluated the predictive capacity of semen parameters (both pre- and post-wash) and antisperm antibodies (ASA) obtained during the fertility workup on IUI outcome in couples with male subfertility in a retrospective cohort study. It included 290 couples, who underwent 722 IUI cycles. The overall ongoing pregnancy rate was 9% per cycle. Model I, with female age, duration of subfertility, secondary subfertility, the presence of anovulation, cervical hostility and cycle number had an area under the curve (AUC) of 0.59. Adding the presence of ASA to this model improved the AUC to 0.65 (model II). Further addition of the post-wash total motile count (TMC) to the model with ASA (model III) improved the AUC to 0.67. Using the models to exclude couples from IUI due to low expected pregnancy rates would increase the pregnancy rate to 11% per cycle with model I, and to 14% per cycle for model II and for model III. In conclusion, in the selection of patients with male subfertility for IUI, the use of prediction models including ASA can increase the efficiency of IUI.
- Published
- 2005
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27. The effectiveness of preimplantation genetic screening.
- Author
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Twisk M, Mastenbroek S, Bossuyt PM, Korevaar JC, Heineman MJ, Repping S, and van der Veen F
- Subjects
- Adult, Chromosome Aberrations, Female, Humans, In Situ Hybridization, Fluorescence, Pregnancy, Pregnancy Outcome, Pregnancy Rate, Reproductive History, Research Design, Aneuploidy, Preimplantation Diagnosis
- Published
- 2005
- Full Text
- View/download PDF
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