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1.
Hum Reprod Update ; 30(2): 174-185, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38148104

RESUMO

BACKGROUND: IVF and IUI with ovarian stimulation (IUI-OS) are widely used in managing unexplained infertility. IUI-OS is generally considered first-line therapy, followed by IVF only if IUI-OS is unsuccessful after several attempts. However, there is a growing interest in using IVF for immediate treatment because it is believed to lead to higher live birth rates and shorter time to pregnancy. OBJECTIVE AND RATIONALE: Randomized controlled trials (RCTs) comparing IVF versus IUI-OS had varied study designs and findings. Some RCTs used complex algorithms to combine IVF and IUI-OS, while others had unequal follow-up time between arms or compared treatments on a per-cycle basis, which introduced biases. Comparing cumulative live birth rates of IVF and IUI-OS within a consistent time frame is necessary for a fair head-to-head comparison. Previous meta-analyses of RCTs did not consider the time it takes to achieve pregnancy, which is not possible using aggregate data. Individual participant data meta-analysis (IPD-MA) allows standardization of follow-up time in different trials and time-to-event analysis methods. We performed this IPD-MA to investigate if IVF increases cumulative live birth rate considering the time leading to pregnancy and reduces multiple pregnancy rate compared to IUI-OS in couples with unexplained infertility. SEARCH METHODS: We searched MEDLINE, EMBASE, CENTRAL, PsycINFO, CINAHL, and the Cochrane Gynaecology and Fertility Group Specialised Register to identify RCTs that completed data collection before June 2021. A search update was carried out in January 2023. RCTs that compared IVF/ICSI to IUI-OS in couples with unexplained infertility were eligible. We invited author groups of eligible studies to join the IPD-MA and share the deidentified IPD of their RCTs. IPD were checked and standardized before synthesis. The quality of evidence was assessed using the Risk of Bias 2 tool. OUTCOMES: Of eight potentially eligible RCTs, two were considered awaiting classification. In the other six trials, four shared IPD of 934 women, of which 550 were allocated to IVF and 383 to IUI-OS. Because the interventions were unable to blind, two RCTs had a high risk of bias, one had some concerns, and one had a low risk of bias. Considering the time to pregnancy leading to live birth, the cumulative live birth rate was not significantly higher in IVF compared to that in IUI-OS (4 RCTs, 908 women, 50.3% versus 43.2%, hazard ratio 1.19, 95% CI 0.81-1.74, I2 = 42.4%). For the safety primary outcome, the rate of multiple pregnancy was not significantly lower in IVF than IUI-OS (3 RCTs, 890 women, 3.8% versus 5.2% of all couples randomized, odds ratio 0.78, 95% CI 0.41-1.50, I2 = 0.0%). WIDER IMPLICATIONS: There is no robust evidence that in couples with unexplained infertility IVF achieves pregnancy leading to live birth faster than IUI-OS. IVF and IUI-OS are both viable options in terms of effectiveness and safety for managing unexplained infertility. The associated costs of interventions and the preference of couples need to be weighed in clinical decision-making.


Assuntos
Fertilidade , Infertilidade , Feminino , Gravidez , Humanos , Indução da Ovulação , Infertilidade/terapia , Inseminação Artificial , Fertilização in vitro
2.
J Pediatr Adolesc Gynecol ; 34(5): 681-685, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33991657

RESUMO

STUDY OBJECTIVE: Müllerian (paramesonephric) duct anomalies (MDAs) are associated with several coexisting congenital abnormalities, including renal abnormalities. Although congenital renal abnormalities may remain asymptomatic, the consequences should not be underestimated. In both the literature and clinical practice, it remains necessary to improve awareness of the co-occurrence of different congenital renal abnormalities in women with MDAs. To gain further insight into this co-occurrence and to estimate whether guidelines for women with MDAs should be optimized, this study was performed. DESIGN: A descriptive retrospective analysis. SETTING: University Medical Centre Utrecht in the Netherlands. PARTICIPANTS: Women with MDAs diagnosed or treated between 1980 and 2015. INTERVENTIONS: None. MAIN OUTCOME MEASURES: The prevalence of the co-occurrence of congenital renal abnormalities in women with MDAs. RESULTS: Renal status was recorded in 186 of 255 women (72.9%), and the other women (27.1%) did not have a retrievable renal status. Congenital renal abnormalities were present in 90 of 186 women (48.4%) and were observed most frequently in women having a duplex uterus with obstructed hemivagina. The most common renal abnormality was unilateral renal agenesis, which was observed in 58 of 90 women (64.4%). CONCLUSIONS: MDAs are highly associated with different congenital renal abnormalities, and these results emphasize that women with MDAs should be routinely screened for their co-occurrence. However, these results also highlight that there remains a lack of awareness of this association. Whether all women with congenital renal abnormalities should be routinely screened for MDAs requires further investigation.


Assuntos
Anormalidades Congênitas , Nefropatias , Anormalidades Urogenitais , Anormalidades Congênitas/epidemiologia , Feminino , Humanos , Rim , Nefropatias/epidemiologia , Ductos Paramesonéfricos , Estudos Retrospectivos , Anormalidades Urogenitais/complicações , Anormalidades Urogenitais/epidemiologia , Útero , Vagina
3.
Eur J Obstet Gynecol Reprod Biol ; 258: 152-156, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33422776

RESUMO

Interest in the field of Paediatric and Adolescent Gynaecology (PAG) has increased substantially over the last decade. Currently there is minimal consensus on how to interpret and validate professional experience, medical knowledge and surgical skills for doctors (accredited in Obstetrics and Gynaecology) who have an interest in and wish to achieve sub-specialisation in PAG. The challenge for the future of PAG is to create a framework of guidelines and references which in turn culminates in improvement and harmonisation in PAG healthcare delivery. The development of a post-specialty training curriculum in PAG for accredited practitioners was a logical next step after EBCOG introduced the PACT curriculum for OBGYN trainees. The guiding principle in the development of the PAG curriculum has been to strive for harmonisation in teaching and training in PAG within Europe. The new EURAPAG curriculum is divided in 17 chapters which in turn have been subdivided into medical and surgical sections plus a baseline skills section. The content has been determined through a consensus procedure amongst European gynaecologists and trainees. The medical chapters involve pathology that requires conservative treatment, prevention, education or lifestyle adjustment. The chapters that are both medical and surgical have a surgical (alternative) treatment ranging from vaginal procedures to advanced hysteroscopic and laparoscopic procedures and laparotomy. Currently, the framework for any medical education is workplace based competency training. Specific tools have been developed for workplace based assessments, such as direct observation (DO) of clinical task performance, Objective Structured Assessment of Technical Skills (OSATS), mini-clinical evaluation exercise (Mini-CEX) or case-based discussion (CBD). To measure progress in this PAG post-specialty training curriculum, the subspecialty trainee will be required to maintain and update a portfolio of experience and competency.


Assuntos
Ginecologia , Obstetrícia , Adolescente , Criança , Competência Clínica , Currículo , Europa (Continente) , Feminino , Ginecologia/educação , Humanos , Obstetrícia/educação , Gravidez
4.
Pediatr Radiol ; 51(3): 427-434, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33185738

RESUMO

BACKGROUND: The diagnostic workup of ovarian tumors in children and adolescents is challenging because preserving fertility, in addition to oncological safety, is of particular importance in this population. Therefore, a thorough preoperative assessment of ovarian tumors is required. OBJECTIVE: To investigate the diagnostic value of MR imaging in differentiating benign from malignant ovarian tumors in children and adolescents. MATERIALS AND METHODS: We conducted a retrospective study of all children and adolescents age <18 years who underwent MR imaging of ovarian tumors during 2014-2019 at a pediatric specialty center. Two radiologists reviewed all MR imaging. We used pathology reports to define the histological diagnosis. RESULTS: We included 30 girls who underwent MR imaging for an ovarian tumor. Signs indicative for malignancy were tumors with a diameter ≥8 cm, with areas of contrast enhancement, irregular margins, extracapsular tumor growth, and ascites. All benign and malignant ovarian tumors were correctly identified by the radiologists. CONCLUSION: The diagnostic utility of MR imaging in classifying ovarian tumors in children and adolescents as benign or malignant is promising and might aid in defining the indication for ovarian-sparing versus non-ovarian-sparing surgery. We recommend evaluating these tumors with MR imaging prior to deciding on surgical treatment.


Assuntos
Imageamento por Ressonância Magnética , Neoplasias Ovarianas , Adolescente , Ascite , Criança , Feminino , Humanos , Recém-Nascido , Neoplasias Ovarianas/diagnóstico por imagem , Estudos Retrospectivos
5.
Contemp Clin Trials Commun ; 20: 100681, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33364517

RESUMO

Although acute psychotic symptoms are often reduced by antipsychotic treatment, many patients with schizophrenia are impaired in daily functioning due to the persistence of negative and cognitive symptoms. Raloxifene, a Selective Estrogen Receptor Modulator (SERM) has been shown to be an effective adjunctive treatment in schizophrenia. Yet, there is a paucity in evidence for raloxifene efficacy in men and premenopausal women. We report the design of a study that aims to replicate earlier findings concerning the efficacy of raloxifene augmentation in reducing persisting symptoms and cognitive impairment in postmenopausal women, and to extend these findings to a male and peri/premenopausal population of patients with schizophrenia. The study is a multisite, placebo-controlled, double-blind, randomised clinical trial in approximately 110 adult men and women with schizophrenia. Participants are randomised 1:1 to adjunctive raloxifene 120 mg or placebo daily during 12 weeks. The treatment phase includes measurements at three time points (week 0, 6 and 12), followed by a follow-up period of two years. The primary outcome measure is change in symptom severity, as measured with the Positive and Negative Syndrome Scale (PANSS), and cognition, as measured with the Brief Assessment of Cognition in Schizophrenia (BACS). Secondary outcome measures include social functioning and quality of life. Genetic, hormonal and inflammatory biomarkers are measured to assess potential associations with treatment effects. If it becomes apparent that raloxifene reduces psychotic symptoms and/or improves cognition, social functioning and/or quality of life as compared to placebo, implementation of raloxifene in clinical psychiatric practice can be considered.

6.
Eur Radiol ; 30(2): 1166-1181, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31529256

RESUMO

OBJECTIVES: The use of magnetic resonance (MR) imaging in differentiation between benign and malignant adnexal masses in children and adolescents might be of great value in the diagnostic workup of sonographically indeterminate masses, since preserving fertility is of particular importance in this population. This systematic review evaluates the diagnostic value of MR imaging in children with an ovarian mass. METHODS: The review was made according to the PRISMA Statement. PubMed and EMBASE were systematically searched for studies on the use of MR imaging in differential diagnosis of ovarian masses in both adult women and children from 2008 to 2018. RESULTS: Sixteen paediatric and 18 adult studies were included. In the included studies, MR imaging has shown good diagnostic performance in differentiating between benign and malignant ovarian masses. MR imaging techniques including diffusion-weighted imaging (DWI) and dynamic contrast-enhanced (DCE) imaging seem to further improve the diagnostic performance. CONCLUSION: The addition of DWI with apparent diffusion coefficient (ADC) values measured in enhancing components of solid lesions and DCE imaging may further increase the good diagnostic performance of MR imaging in the pre-operative differentiation between benign and malignant ovarian masses by increasing specificity. Prospective age-specific studies are needed to confirm the high diagnostic performance of MR imaging in children and adolescents with a sonographically indeterminate ovarian mass. KEY POINTS: • MR imaging, based on several morphological features, is of good diagnostic performance in differentiating between benign and malignant ovarian masses. Sensitivity and specificity varied between 84.8 to 100% and 20.0 to 98.4%, respectively. • MR imaging techniques like diffusion-weighted imaging (DWI) and dynamic contrast-enhanced (DCE) imaging seem to improve the diagnostic performance. • Specific studies in children and adolescents with ovarian masses are required to confirm the suggested increased diagnostic performance of DWI and DCE in this population.


Assuntos
Imageamento por Ressonância Magnética , Neoplasias Ovarianas/diagnóstico por imagem , Adolescente , Adulto , Criança , Meios de Contraste , Diagnóstico Diferencial , Imagem de Difusão por Ressonância Magnética/métodos , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Neoplasias Ovarianas/patologia , Estudos Prospectivos , Sensibilidade e Especificidade , Ultrassonografia
7.
Adv Health Sci Educ Theory Pract ; 25(1): 173-187, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31451981

RESUMO

In postgraduate medical education, required competencies are described in detail in existing competency frameworks. This study proposes an alternative strategy for competency-based medical education design, which is supported by change management theories. We demonstrate the value of allowing room for re-invention and creative adaptation of innovations. This new strategy was explored for the development of a new generic competency framework for a harmonised European curriculum in Obstetrics and Gynaecology. The generic competency framework was developed through action research. Data were collected by four European stakeholder groups (patients, nurses, midwives and hospital boards), using a variety of methods. Subsequently, the data were analysed further in consensus discussions with European specialists and trainees in Obstetrics and Gynaecology. These discussions ensured that the framework provides guidance, is specialty-specific, and that implementation in all European countries could be feasible. The presented generic competency framework identifies four domains: 'Patient-centred care', 'Teamwork', 'System-based practice' and 'Personal and professional development'. For each of these four domains, guiding competencies were defined. The new generic competency framework is supported by European specialists and trainees in Obstetrics and Gynaecology, as well as by their European stakeholders. According to change management theories, it seems vital to allow room for re-invention and creative adaptation of the competency framework by medical professionals. Therefore, the generic competency framework offers guidance rather than prescription. The presented strategy for competency framework development offers leads for implementation of competency-based medical education as well as for development of innovations in postgraduate medical education in general.


Assuntos
Competência Clínica , Educação Baseada em Competências , Educação de Pós-Graduação em Medicina , Ginecologia/educação , Obstetrícia/educação , Mobilidade Ocupacional , Currículo , Europa (Continente) , Pesquisa sobre Serviços de Saúde , Humanos , Equipe de Assistência ao Paciente , Assistência Centrada no Paciente
8.
Perspect Med Educ ; 8(4): 216-222, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31297707

RESUMO

INTRODUCTION: International harmonization of postgraduate medical education is gaining importance in the globalization of medical education. Harmonization is regarded as the establishment of common standards in education, while maintaining regional or local freedom to adapt training to contexts. During the development of a harmonized curriculum, tensions between standardization and contextualization may surface. To allow future harmonization projects to recognize these tensions and deal with them in a timely manner, this study aims to gain insight into tensions that may arise when developing a harmonized curriculum for postgraduate medical education in Obstetrics and Gynaecology in Europe. METHODS: Focus groups were held with international curriculum developers to discuss challenges that resulted from tensions between standardization and contextualization when developing a harmonized European curriculum for postgraduate medical education in Obstetrics and Gynaecology. Data were analyzed through conventional content analysis, using the principles of template analysis. RESULTS AND DISCUSSION: Tensions between standardization and contextualization in the development of a harmonized curriculum were apparent in two domains: 1) Varying ideas about what the harmonized curriculum means for the current curriculum and 2) Inconsistencies between educational principles and the reality of training. Additionally, we identified ways of dealing with these tensions, which were characterized as 'negotiating flexibility'. Tensions between standardization and contextualization surfaced in the development phase of harmonizing a curriculum, partly because it was anticipated that there would be problems when implementing the curriculum.


Assuntos
Currículo/normas , Educação de Pós-Graduação em Medicina/normas , Ginecologia/educação , Cooperação Internacional , Obstetrícia/educação , Competência Clínica/normas , Europa (Continente) , Humanos , Pesquisa Qualitativa
9.
Eur J Obstet Gynecol Reprod Biol ; 216: 143-152, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28763740

RESUMO

OBJECTIVE: European harmonisation of training standards in postgraduate medical education in Obstetrics and Gynaecology is needed because of the increasing mobility of medical specialists. Harmonisation of training will provide quality assurance of training and promote high quality care throughout Europe. Pan-European training standards should describe medical expertise outcomes that are required from the European gynaecologist. This paper reports on consensus development on the medical expertise outcomes of pan-European training in Obstetrics and Gynaecology. STUDY DESIGN: A Delphi procedure was performed amongst European gynaecologists and trainees in Obstetrics & Gynaecology, to develop consensus on outcomes of training. The consensus procedure consisted of two questionnaire rounds, followed by a consensus meeting. To ensure reasonability and feasibility for implementation of the training standards in Europe, implications of the outcomes were considered in a working group thereafter. We invited 142 gynaecologists and trainees in Obstetrics & Gynaecology for participation representing a wide range of European countries. They were selected through the European Board & College of Obstetrics and Gynaecology and the European Network of Trainees in Obstetrics & Gynaecology. RESULTS: Sixty people participated in round 1 and 2 of the consensus procedure, 38 (63.3%) of whom were gynaecologists and 22 (36.7%) were trainees in Obstetrics & Gynaecology. Twenty-eight European countries were represented in this response. Round 3 of the consensus procedure was performed in a consensus meeting with six experts. Implications of the training outcomes were discussed in a working group meeting, to ensure reasonability and feasibility of the material for implementation in Europe. The entire consensus procedure resulted in a core content of training standards of 188 outcomes, categorised in ten topics. CONCLUSION: European consensus was developed regarding the medical expertise outcomes of pan-European training in Obstetrics and Gynaecology. The outcomes will be described in core trainings standards, aimed at harmonising training in Obstetrics and Gynaecology in Europe to promote high quality care.


Assuntos
Competência Clínica , Educação de Pós-Graduação em Medicina/normas , Ginecologia/educação , Obstetrícia/educação , Consenso , Europa (Continente) , Feminino , Humanos , Gravidez
10.
Eur J Obstet Gynecol Reprod Biol ; 203: 229-31, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27348846

RESUMO

The 'Project for Achieving Consensus in Training' has been initiated by the European Board & College of Obstetrics and Gynaecology to harmonise training in Obstetrics and Gynaecology throughout Europe. In this project called the EBCOG-PACT, a state of the art pan-European training curriculum will be developed. Implementation of a pan-European curriculum will enhance harmonisation of both quality standards of women's healthcare practice and standards of postgraduate training. Secondly, it will assure equal quality of training of gynaecologists, promoting mobility throughout Europe. Thirdly, it will enhance cooperation and exchange of best practices between medical specialists and hospitals within Europe. The project is expecting to deliver (1) a description of the core and electives of the curriculum based on previously defined standards of care, (2) a societally responsive competency framework based on input from societal stakeholders and (3) strategies for education and assessment based on the current literature. Also, the project focuses on implementation and sustainability of the curriculum by delivering (4) a SWOT-analysis for the implementation based on insights into transcultural differences, (5) recommendations for implementation, change management and sustainability based on the SWOT analysis (6) and finally a handbook for other specialties initiating European curriculum development. The development and the implementation of this modern pan-European curriculum in Obstetrics and Gynaecology aims to serve as an example for the harmonisation of postgraduate training in Europe.


Assuntos
Currículo , Educação de Pós-Graduação em Medicina , Ginecologia/educação , Obstetrícia/educação , Europa (Continente) , Feminino , Humanos , Gravidez
11.
Hum Reprod ; 30(6): 1447-53, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25840428

RESUMO

STUDY QUESTION: How does insulin action change during pregnancy in women with polycystic ovary syndrome (PCOS) who develop gestational diabetes (GDM) compared with women with PCOS who do not? SUMMARY ANSWER: Women with PCOS who develop GDM already show disturbed insulin action early in pregnancy. WHAT IS KNOWN ALREADY: Pregnant women with PCOS are at increased risk of developing GDM compared with women without PCOS. STUDY DESIGN, SIZE, DURATION: This study represents a post hoc analysis of a subgroup of pregnant women with PCOS participating in a multicentre prospective cohort study. A total of 72 women were included. PARTICIPANTS/MATERIALS, SETTING, METHODS: Women with PCOS and a wish to conceive were included before conception and followed during pregnancy. Insulin, glucose, homeostasis model assessment of insulin resistance (HOMA-IR), sex hormone-binding globulin (SHBG) and testosterone were analysed at three different time points in women who developed GDM and women who did not. MAIN RESULTS AND THE ROLE OF CHANCE: Seventy-two pregnant women with PCOS were included of which 22 (31%) women developed GDM. Both insulin levels and HOMA-IR were significantly higher at each sampling point in women with PCOS who developed GDM. SHBG levels were significantly lower before conception and in the second trimester compared with women who did not develop GDM. Testosterone concentrations were significantly lower before conception in women who developed GDM. After adjusting for BMI, waist circumference and waist/hip ratio, the differences in insulin, HOMA-IR, SHBG and testosterone levels remained largely the same. LIMITATIONS, REASONS FOR CAUTION: Selection bias cannot be excluded since only women from one centre with a complete blood sampling set were included in this study. WIDER IMPLICATIONS OF THE FINDINGS: The knowledge that women with PCOS who develop GDM already have a disturbed insulin action early in pregnancy is likely to be useful in considering the pathophysiology processes underlying this disorder in this specific group of women. STUDY FUNDING/COMPETING INTERESTS: This study was funded by the Child Health research programme of the University Medical Centre Utrecht. M.A.d.W., A.J.G., S.M.V.-V., A.F. and M.P.H.K. have no conflicts of interest to disclose. M.J.C.E. has received grant support from the following companies (in alphabetic order): Illumina and MSD. B.C.J.M.F. has received fees and grant support from the following companies (in alphabetic order): Ferring, Ova-Science, PregLem SA, Roche and Watson Laboratories. The authors declare complete independence from funders. TRIAL REGISTRATION NUMBER: Clinicaltrials.gov, number NCT00821379.


Assuntos
Diabetes Gestacional/sangue , Resistência à Insulina , Insulina/sangue , Síndrome do Ovário Policístico/complicações , Adulto , Glicemia , Estudos de Coortes , Feminino , Homeostase , Humanos , Análise Multivariada , Gravidez , Globulina de Ligação a Hormônio Sexual/metabolismo , Testosterona/sangue
12.
Schizophr Res ; 168(3): 603-13, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25914107

RESUMO

INTRODUCTION: Sex differences in incidence, onset and course of schizophrenia suggest sex hormones play a protective role in the pathophysiology. Such a role is also proposed for oxytocin, another important regulator of reproduction function. Evidence on the efficacy of sex hormones and oxytocin in the treatment of schizophrenia is summarized. METHODS: Double-blind, placebo-controlled, randomized studies were included, examining augmentation with estrogens, selective estrogen receptor modulators (SERMs), testosterone, dehydroepiandrosterone (DHEA), pregnenolone, and oxytocin. Outcome measures were total symptom severity, positive and negative symptom subscores, and cognition. In meta-analyses, combined weighted effect sizes (Hedges' g) per hormone were calculated. RESULTS: Twenty-four studies were included, examining 1149 patients. Significant effects were found for estrogen action (k=10), regarding total symptoms (Hedges' g=0.63, p=0.001), positive (Hedges' g=0.42, p<0.001), and negative symptoms (Hedges' g=0.35, p=0.001). Subgroup analyses yielded significant results for estrogens in premenopausal women (k=6) for total, positive, and negative symptoms, and for the SERM raloxifene in postmenopausal women (k=3) for total and negative, but not positive symptoms. Testosterone augmentation in males (k=1) was beneficial only for negative symptoms (Hedges' g=0.82, p=0.027). No overall effects were found for DHEA (k=4), pregnenolone (k=4), and oxytocin (k=6). Results for cognition (k=12) were too diverse for meta-analyses, and inspection of these data showed no consistent benefit. CONCLUSIONS: Estrogens and SERMs could be effective augmentation strategies in the treatment of women with schizophrenia, although potential side effects, partially associated with longer duration use, should be taken into account. Future trials are needed to study long-term effects and effects on cognition.


Assuntos
Antipsicóticos/uso terapêutico , Hormônios Gonadais/uso terapêutico , Terapia de Reposição Hormonal/métodos , Ocitocina/uso terapêutico , Esquizofrenia/tratamento farmacológico , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto
13.
Int J Gynaecol Obstet ; 123 Suppl 2: S9-17, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24139473

RESUMO

Hormonal causes of female infertility involve ovulatory dysfunctions that may result from dysfunction of the hypothalamic-pituitary-ovarian axis, peripheral endocrine glands, nonendocrine organs, or metabolic disorders. It is important to think of anovulation not as a diagnosis but as a symptom of a metabolic or endocrine disorder that requires a thorough diagnostic evaluation to identify the specific cause and to implement effective therapies that assure the best possible pregnancy outcome and avoid long-term adverse health consequences. In most instances, the medical history points to the underlying dysfunction, which can usually be confirmed with laboratory or imaging tests. For more challenging cases, more extensive evaluations may be needed, including perturbation studies. Nevertheless, the management of anovulatory infertility is gratifying because its causes are often manifest and the treatment usually results in resumption of ovulatory cycles, restoration of fertility, and healthy offspring through natural conception without requiring expensive and intrusive assisted reproductive technologies.


Assuntos
Anovulação/terapia , Infertilidade Feminina/terapia , Ovulação/fisiologia , Anovulação/diagnóstico , Anovulação/etiologia , Doenças do Sistema Endócrino/complicações , Doenças do Sistema Endócrino/diagnóstico , Doenças do Sistema Endócrino/terapia , Feminino , Humanos , Infertilidade Feminina/diagnóstico , Infertilidade Feminina/etiologia , Doenças Metabólicas/complicações , Doenças Metabólicas/diagnóstico , Doenças Metabólicas/terapia , Gravidez , Resultado da Gravidez
14.
BMC Womens Health ; 13: 42, 2013 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-24160333

RESUMO

BACKGROUND: Clomiphene citrate (CC) is first line treatment in women with World Health Organization (WHO) type II anovulation and polycystic ovary syndrome (PCOS). Whereas 60% to 85% of these women will ovulate on CC, only about one half will have conceived after six cycles. If women do not conceive, treatment can be continued with gonadotropins or intra-uterine insemination (IUI). At present, it is unclear for how many cycles ovulation induction with CC should be repeated, and when to switch to ovulation induction with gonadotropins and/or IUI. METHODS/DESIGN: We started a multicenter randomised controlled trial in the Netherlands comparing six cycles of CC plus intercourse or six cycles of gonadotrophins plus intercourse or six cycles of CC plus IUI or six cycles of gonadotrophins plus IUI.Women with WHO type II anovulation who ovulate but did not conceive after six ovulatory cycles of CC with a maximum of 150 mg daily for five days will be included.Our primary outcome is birth of a healthy child resulting from a pregnancy that was established in the first eight months after randomisation. Secondary outcomes are clinical pregnancy, miscarriage, multiple pregnancy and treatment costs. The analysis will be performed according to the intention to treat principle. Two comparisons will be made, one in which CC is compared to gonadotrophins and one in which the addition of IUI is compared to ovulation induction only. Assuming a live birth rate of 40% after CC, 55% after addition of IUI and 55% after ovulation induction with gonadotrophins, with an alpha of 5% and a power of 80%, we need to recruit 200 women per arm (800 women in total).An independent Data and Safety Monitoring Committee has criticized the data of the first 150 women and concluded that a sample size re-estimation should be performed after including 320 patients (i.e. 80 per arm). DISCUSSION: The trial will provide evidence on the most effective, safest and most cost effective treatment in women with WHO type II anovulation who do not conceive after six ovulatory cycles with CC with a maximum of 150 mg daily for five days. This evidence could imply the need for changing our guidelines, which may cause a shift in large practice variation to evidence based primary treatment for these women. TRIAL REGISTRATION NUMBER: Netherlands Trial register NTR1449.


Assuntos
Anovulação/terapia , Hormônio Foliculoestimulante/uso terapêutico , Gonadotropinas/uso terapêutico , Infertilidade Feminina/terapia , Indução da Ovulação/métodos , Síndrome do Ovário Policístico/terapia , Anovulação/complicações , Clomifeno , Feminino , Humanos , Infertilidade Feminina/etiologia , Inseminação Artificial/métodos , Países Baixos , Síndrome do Ovário Policístico/complicações , Gravidez , Taxa de Gravidez , Tempo para Engravidar , Resultado do Tratamento
15.
Hum Reprod ; 28(8): 2228-34, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23739218

RESUMO

STUDY QUESTION: Is routine screening by oral glucose tolerance test (OGTT) needed for all women with polycystic ovary syndrome (PCOS)? SUMMARY ANSWER: Screening for glucose metabolism abnormalities of PCOS patients by an OGTT could potentially be limited to patients who present with a fasting glucose concentration between 6.1 and 7.0 mmol/l only. WHAT IS KNOWN ALREADY: Women with PCOS are at increased risk of developing diabetes. This study proposes a stepwise screening strategy for (pre)diabetes for PCOS patients based on risk stratification by fasting plasma glucose. STUDY DESIGN, SIZE, DURATION: A cross-sectional study of 226 women diagnosed with anovulatory PCOS. PARTICIPANTS AND SETTING: A consecutive series of 226 patients, diagnosed with PCOS at the University Medical Centre Utrecht, the Netherlands, were screened for glucose metabolism abnormalities by OGTT (75 g glucose load). MAIN RESULTS AND ROLE OF CHANCE: The majority of the 226 women (mean age: 29.6 ± 4.3 years; BMI: 27.3 ± 6.7 kg/m(2); 81% Caucasian) presented with a normal OGTT (169 women (75%)). Of the 57 (25%) women presenting with mild to moderate glucose abnormalities, 53 (93%) could be identified by fasting glucose concentrations only. Diabetes was diagnosed in a total of eight women (3.5%). In six women, the diagnosis was based on fasting glucose >7.0 mmol/l. The other two cases of diabetes initially presented with fasting glucose between 6.1 and 7.0 mmol/l and were diagnosed by OGTT assessment. No women diagnosed with diabetes presented with fasting glucose levels below 6.1 mmol/l. We therefore conclude that all diabetes patients could potentially be found by initial fasting glucose assessment followed by OGTT only in patients with fasting glucose between 6.1 and 7.0 mmol/l. LIMITATIONS, REASONS FOR CAUTION: Before general implementation can be advised, this screening algorithm should be validated in a prospective study of a similar or greater number of PCOS women. WIDER IMPLICATIONS OF THE FINDINGS: Our study comprised of a mostly Caucasian (81%) population, therefore generalization to other ethnic populations should be done with caution. STUDY FUNDING/COMPETING INTEREST(S): No external finance was involved in this study. B.C.J.M.F. has received fees and grant support from the following companies (in alphabetic order); Andromed, Ardana, Ferring, Genovum, Merck Serono, MSD, Organon, Pantharei Bioscience, PregLem, Schering, Schering Plough, Serono and Wyeth. A.J.G. has received fees from Abbott, Bayer Schering and IBSA. T.W.H. has received fees from Merck, Sharpe & Dohme, GlaxoSmithKline, NovoNordisk and Eli Lilly. The authors declare complete independence from funders. CLINICAL TRIAL REGISTRATION NUMBER: NCT00821379.


Assuntos
Glicemia , Síndrome do Ovário Policístico/sangue , Adulto , Estudos Transversais , Jejum , Feminino , Teste de Tolerância a Glucose , Humanos , Resistência à Insulina , Síndrome do Ovário Policístico/complicações , Síndrome do Ovário Policístico/metabolismo
16.
Fertil Steril ; 97(1): 141-6.e2, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22100173

RESUMO

OBJECTIVE: To evaluate the significance of NR5A1 mutations in a large, well-phenotyped cohort of women with primary ovarian insufficiency (POI). Mutations in the NR5A1 gene (SF-1) were previously described in disorders of sexual development and adrenal insufficiency. Recently, a high frequency of NR5A1 gene mutations was reported in a small group of women with POI. DESIGN: Cross-sectional cohort study. SETTING: University hospital. PATIENT(S): Well-phenotyped women (n = 386) with secondary amenorrhea and diagnosed with POI, including women with familial POI (n = 77). INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): The entire coding region and splice sites of the NR5A1 gene were PCR-amplified and sequenced. The pathogenicity of identified mutations was predicted in silico by assessing Align-GVGD class and Grantham score. RESULT(S): Sequencing was successful in 356 patients with POI. In total, 9 mutations were identified in 10 patients. Five of these mutations concerned novel nonconservative mutations occurring in 5 patients. Prediction of effect on protein function showed low to intermediate pathogenicity for all nonconservative mutations. The overall NR5A1 gene mutation rate was 1.4%. CONCLUSION(S): The current study demonstrates that mutations in the NR5A1 gene are rare in women with POI. Primary ovarian insufficiency remains unexplained in the great majority of patients; therefore, continued efforts are needed to elucidate its underlying genetic factors.


Assuntos
Mutação Puntual/genética , Insuficiência Ovariana Primária/genética , Fator Esteroidogênico 1/genética , Adolescente , Adulto , Estudos Transversais , Feminino , Predisposição Genética para Doença/epidemiologia , Predisposição Genética para Doença/genética , Testes Genéticos , Humanos , Pessoa de Meia-Idade , Fenótipo , Insuficiência Ovariana Primária/epidemiologia , Sítios de Splice de RNA/genética , Adulto Jovem
17.
Eur J Endocrinol ; 165(6): 925-33, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21969522

RESUMO

OBJECTIVE: The measurement of serum testosterone in women is challenging due to lack of trueness, precision, and sensitivity of various available testosterone assays. Accurate assessment of testosterone in women is crucial especially in conditions associated with alleged over- or under-production of testosterone, such as in polycystic ovary syndrome (PCOS) or primary ovarian insufficiency (POI). The aim of this study was to measure and compare androgen concentrations in women with PCOS, POI, and female controls and to evaluate the performance of extraction RIA and liquid chromatography-tandem mass spectrometry (LC-MS/MS) in these women. DESIGN: Cross-sectional study. METHODS: Carefully phenotyped women with POI (n=208) or PCOS (n=200) and 45 healthy, regularly cyclic female controls were included. Method comparison analyses were performed for total testosterone, androstenedione (AD), and DHEA, as measured by LC-MS/MS and extraction RIA. RESULTS: All androgen levels were significantly elevated in women with PCOS compared with POI patients (P<0.05) and controls (P<0.05). Women with POI presented with similar androgen concentrations as controls, except for AD. Compared with measurements by extraction RIA, testosterone, DHEA, and AD concentrations measured by LC-MS/MS were systematically lower. However, using extraction RIA and LC-MS/MS, testosterone, DHEA, and AD measurements were shown to have good agreement as assessed by Bland-Altman analysis and intraclass correlation coefficient: 0.95 (95% confidence interval 0.94-0.91), 0.83 (0.79-0.86), and 0.96 (0.95-0.97) respectively. CONCLUSIONS: LC-MS/MS, compared with a labor-intensive extraction RIA, shows good precision, sensitivity, and high accuracy for measuring female testosterone, DHEA, and AD concentrations under various clinical conditions. LC-MS/MS, therefore, represents a convenient and reliable assay for both clinical and research purposes, where androgen measurement in women is required.


Assuntos
Androgênios/sangue , Espectrometria de Massas em Tandem/normas , Adolescente , Adulto , Biomarcadores/sangue , Cromatografia Líquida/métodos , Cromatografia Líquida/normas , Estudos Transversais , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Radioimunoensaio/métodos , Radioimunoensaio/normas , Distribuição Aleatória , Espectrometria de Massas em Tandem/métodos , Adulto Jovem
18.
Reprod Sci ; 18(8): 702-12, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21795737

RESUMO

The role of sex steroid hormones in reproductive function in women is well established. However, in the last two decades it has been shown that receptors for estrogens, progesterone and androgens are expressed in non reproductive tissue /organs (bone, brain, cardiovascular system) playing a role in their function. Therefore, it is critical to evaluate the impact of sex steroid hormones in the pathophysiology of some diseases (osteoporosis, Alzheimer, atherosclerosis). In particular, women with primary ovarian insufficiency, polycystic ovary syndrome, endometriosis and climacteric syndrome may have more health problems and therefore an hormonal treatment may be crucial for these women.


Assuntos
Endometriose/fisiopatologia , Hormônios Esteroides Gonadais/fisiologia , Síndrome do Ovário Policístico/fisiopatologia , Pós-Menopausa/fisiologia , Insuficiência Ovariana Primária/fisiopatologia , Feminino , Humanos
19.
Menopause ; 17(5): 990-6, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20551845

RESUMO

OBJECTIVE: Primary prevention of cardiovascular disease (CVD) in women is a major healthcare issue. Detection of premenopausal women with increased risk of CVD could enhance prevention strategies and reduce first event-related morbidity and mortality. In this study, we argue that an unfavorable metabolic constitution in women may present itself early in life as a reproductive complication, such as polycystic ovary syndrome (PCOS) and preeclampsia. We evaluated the cardiovascular risk of women with a history of early-onset preeclampsia and women with PCOS and assessed their need for implementation of early risk factor-reduction strategies. METHODS: We performed a standardized evaluation of 240 women with a history of early-onset preeclampsia and 456 women diagnosed with PCOS for established major CVD risk factors. Metabolic syndrome characteristics were analyzed per body mass index category. RESULTS: Mean age was 30.6 and 29.0 years for women with preeclampsia and PCOS, respectively. High percentages of metabolic syndrome were found in both groups (preeclampsia group, 14.6%; and PCOS group, 18.4%), with an incidence of greater than 50% in both groups of women if body mass index was greater than 30 kg/m. Overall, more than 90% of the women qualified for either lifestyle or medical intervention according to the American Heart Association guideline for CVD prevention in women. CONCLUSIONS: Women with PCOS and early-onset preeclampsia already show an unfavorable cardiovascular risk profile with high need for lifestyle or medical intervention at a young age. We therefore recommend an active role of the gynecologist in routine screening and follow-up of women with reproductive conditions linked to future cardiovascular risk.


Assuntos
Doenças Cardiovasculares , Síndrome Metabólica/complicações , Obesidade/complicações , Síndrome do Ovário Policístico/complicações , Pré-Eclâmpsia , Adulto , Índice de Massa Corporal , Feminino , Humanos , Incidência , Síndrome Metabólica/epidemiologia , Gravidez , Fatores de Risco
20.
Menopause ; 17(4): 758-65, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20395876

RESUMO

OBJECTIVE: Premature ovarian failure (POF) is characterized by secondary amenorrhea before the age of 40 years, along with repeated increased follicle-stimulating hormone and low estrogen concentrations. POF is considered a complex genetic disease with a familial presentation in 12% to 50% of cases. POF may originate from different genes and various gene-environment interactions. The aim of this study was to identify possible differences in phenotype comparing women with familial and women with sporadic POF. METHODS: A multicenter study was initiated in the Netherlands using standardized phenotyping. For each woman, medical history, menstrual cycle, and fertility and smoking status were assessed and a standardized examination was performed. Based on a detailed three-generation family history, women were identified as having either familial (defined as having at least one relative with POF) or sporadic POF. RESULTS: A total of 58 familial cases and 142 sporadic cases of POF were identified. Maternal age at menopause was significantly lower in the women with familial compared with the women with sporadic POF (41.0 +/- 7.5 and 49.7 +/- 2.6 y, respectively; P < 0.001). Sex hormone-binding globulin concentration was significantly higher in the women with familial than in the women with sporadic POF (73.6 +/- 37.1 and 55.2 +/- 26.9 nmol/L, respectively; P = 0.002). All other characteristics, such as parity, bone mineral density, and serum follicle-stimulating hormone and lipid levels were similar, as was the incidence of autoimmunity and cytogenetic abnormalities. CONCLUSIONS: Familial and sporadic POF do not differ in phenotype except for maternal menopause age and sex hormone-binding globulin concentration. Future studies are needed to unravel the genotype-phenotype interactions in POF.


Assuntos
Insuficiência Ovariana Primária/epidemiologia , Insuficiência Ovariana Primária/genética , Adulto , Fatores Etários , Densidade Óssea , Aberrações Cromossômicas , Feminino , Hormônios Esteroides Gonadais/sangue , Gonadotropinas/sangue , Humanos , Lipídeos/sangue , Mães , Paridade , Fenótipo , Gravidez , Globulina de Ligação a Hormônio Sexual/análise
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