Publications by authors named "Vermeulen N"

Study Question: How should premature/primary ovarian insufficiency (POI) be diagnosed and managed based on the best available evidence from published literature?

Summary Answer: The current guideline provides 145 recommendations on symptoms, diagnosis, causation, sequelae, and treatment of POI.

What Is Known Already: Premature ovarian insufficiency (POI) presents a significant challenge to women's health, with far-reaching implications, both physically and emotionally. The potential implications include adverse effects on quality of life; fertility; and bone, cardiovascular, and cognitive health.

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Study Question: How should premature/primary ovarian insufficiency (POI) be diagnosed and managed, based on the best available evidence from published literature?

Summary Answer: The current guideline provides 145 recommendations on symptoms, diagnosis, causation, sequelae and treatment of POI.

What Is Known Already: Premature ovarian insufficiency (POI) presents a significant challenge to women's health, with far-reaching implications, both physically and emotionally. The potential implications include adverse effects on quality of life; fertility; and bone, cardiovascular and cognitive health.

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Study Question: How should premature/primary ovarian insufficiency (POI) be diagnosed and managed, based on the best available evidence from published literature?

Summary Answer: The current guideline provides 145 recommendations on symptoms, diagnosis, causation, sequelae and treatment of POI.

What Is Known Already: POI presents a significant challenge to women's health, with far-reaching implications, both physically and emotionally. The potential implications include adverse effects on quality of life, on fertility and on bone, cardiovascular and cognitive health.

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Article Synopsis
  • The study investigated the current medically assisted reproduction (MAR) data collection systems across EU Member States and explored how they could contribute to a unified registry for the EuMAR project.
  • Significant variations were found in data types, collection methods, and reporting requirements, indicating a need for standardized practices to improve MAR data collection across the EU.
  • The cross-sectional study surveyed and interviewed participants from 26 EU countries, revealing that half have national MAR registries with cycle-by-cycle data, while others rely on aggregated data or have no registry at all.
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Article Synopsis
  • The study investigates how healthcare professionals in Europe view and practice expanded carrier screening (ECS) in assisted reproductive technology (ART).
  • Less than half of the professionals work at centers that offer ECS, and there's a lot of difference in how it's done across Europe.
  • The survey collected 338 responses from professionals between February and April 2022 to understand their practices and opinions on ECS in ART.
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Background: The genetic composition of embryos generated by in vitro fertilization (IVF) can be examined with preimplantation genetic testing (PGT). Until recently, PGT was limited to detecting single-gene, high-risk pathogenic variants, large structural variants, and aneuploidy. Recent advances have made genome-wide genotyping of IVF embryos feasible and affordable, raising the possibility of screening embryos for their risk of polygenic diseases such as breast cancer, hypertension, diabetes, or schizophrenia.

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Study Question: Which clinical and embryological factors should be considered to apply double embryo transfer (DET) instead of elective single embryo transfer (eSET)?

Summary Answer: No clinical or embryological factor per se justifies a recommendation of DET instead of eSET in IVF/ICSI.

What Is Known Already: DET is correlated with a higher rate of multiple pregnancy, leading to a subsequent increase in complications for both mother and babies. These complications include preterm birth, low birthweight, and other perinatal adverse outcomes.

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Study Question: Which add-ons are safe and effective to be used in ART treatment?

Summary Answer: Forty-two recommendations were formulated on the use of add-ons in the diagnosis of fertility problems, the IVF laboratory and clinical management of IVF treatment.

What Is Known Already: The innovative nature of ART combined with the extremely high motivation of the patients has opened the door to the wide application of what has become known as 'add-ons' in reproductive medicine. These supplementary options are available to patients in addition to standard fertility procedures, typically incurring an additional cost.

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Article Synopsis
  • Improvements in COVID-19 treatments for critically ill patients need a better understanding of how the disease harms the body, particularly through the complement system, which helps fight infections but can also cause tissue damage.
  • The study finds that the alternative pathway of complement activation is mainly responsible for issues in COVID-19 and highlights differences in how lung and liver cells contribute to this response during respiratory decline.
  • Researchers identify IL-6 and STAT1/3 signaling as key triggers for complement activity and suggest that targeting complement dysregulation could improve treatment outcomes for COVID-19 patients.
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Background: Practice variation in recurrent pregnancy loss (RPL) care is common. International guidelines vary in their recommendations for the management of RPL couples, which could lead to an increase of cross border reproductive care. Currently, the Dutch RPL guideline is being adapted from the European Society for Human Reproduction and Embryology (ESHRE) guideline.

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Article Synopsis
  • This text discusses how to define and manage recurrent implantation failure (RIF) in patients undergoing assisted reproductive technology (ART), emphasizing the need for clear guidelines and practices.
  • The ESHRE working group created recommendations based on existing literature, a survey of clinical practices, and expert opinions, aimed at addressing the challenges of RIF in ART clinics.
  • The paper notes that RIF is a common issue without consistent underlying causes, highlighting the importance of tailored investigations to enhance chances of successful pregnancies in affected patients.
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Jacques Brel, a French-speaking Belgian popular singer, carries a fatalistic look in his song Les Vieux [The Adged] that makes echoes to the implacable judgment of Charles de Gaulle "Old age is a shipwreck". Old age is synonymous with weakening, exhaustion and even decay. This image must be overcome to face a more nuanced reality, where autonomy is favored; we must developp the care of the frailest people (accessibility of places, geriatric care, home services, medicalized material…).

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More than 20 years ago, the survey of activities in medically assisted reproduction (MAR) was initiated in Europe and resulted in cross-sectional annual reports, as issued by the European IVF Monitoring (EIM) consortium of ESHRE. Over time, these reports mirror the continuous development of the technologies and contribute to increased transparency and surveillance of reproductive care. Meanwhile, progressive changes of existing treatment modalities and the introduction of new technologies resulted in the need of a cumulative approach in the assessment of treatment outcomes, which warrants a prospective cycle-by-cycle data registry on MAR activities, including fertility preservation.

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Socio-emotional features are crucial in the development and maintenance of anorexia nervosa (AN). The present study investigates the patterns of altered and preserved empathic abilities in AN. Empathy is an umbrella term that comprises the ability to recognise another's emotional state, take another's perspective, and fantasise (cognitive empathy), as well as the ability to experience vicarious emotions and signal them (affective empathy).

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Background: The standard surgical treatment of endometrial carcinoma (EC) consisting of total hysterectomy with bilateral salpingo-oophorectomy drastically affects the quality of life of patients and creates a challenge for clinicians. Recent evidence-based guidelines of the European Society of Gynaecological Oncology (ESGO), the European SocieTy for Radiotherapy & Oncology (ESTRO) and the European Society of Pathology (ESP) provide comprehensive guidelines on all relevant issues of diagnosis and treatment in EC in a multidisciplinary setting. While also addressing work-up for fertility preservation treatments and the management and follow-up for fertility preservation, it was considered relevant to further extend the guidance on fertility sparing treatment.

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Study Question: What are the updates for the recommended management of women with recurrent pregnancy loss (RPL) based on the best available evidence in the literature from 2017 to 2022?

Summary Answer: The guideline development group (GDG) updated 11 existing recommendations on investigations and treatments for RPL, and how care should be organized, and added one new recommendation on adenomyosis investigation in women with RPL.

What Is Known Already: A previous ESHRE guideline on RPL was published in 2017 and needs to be updated.

Study Design Size Duration: The guideline was developed and updated according to the structured methodology for development and update of ESHRE guidelines.

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Study Question: How should fertility-sparing treatment of patients with endometrial carcinoma be performed?

Summary Answer: Forty-eight recommendations were formulated on fertility-sparing treatment of patients with endometrial carcinoma.

What Is Known Already: The standard surgical treatment of endometrial carcinoma consisting of total hysterectomy with bilateral salpingo-oophorectomy drastically affects the quality of life of patients and creates a challenge for clinicians. Recent evidence-based guidelines of the European Society of Gynaecological Oncology (ESGO), the European SocieTy for Radiotherapy & Oncology (ESTRO) and the European Society of Pathology (ESP) provide comprehensive guidelines on all relevant issues of diagnosis and treatment in endometrial carcinoma in a multidisciplinary setting.

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The standard surgical treatment of endometrial carcinoma, consisting of total hysterectomy with bilateral salpingo-oophorectomy, drastically affects the quality of life of patients and creates a challenge for clinicians. Recent evidence-based guidelines of the European Society of Gynaecological Oncology (ESGO), the European SocieTy for Radiotherapy and Oncology (ESTRO), and the European Society of Pathology (ESP) provide comprehensive information on all relevant issues of diagnosis and treatment in endometrial carcinoma in a multidisciplinary setting. While addressing also work-up for fertility preservation treatments and the management and follow-up for fertility preservation, it was considered relevant to further extend the guidance on fertility-sparing treatment.

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Objectives: Belgium enacted a coronavirus disease 2019 (COVID-19) pass - the 'COVID Safe Ticket' (CST) - in October 2021. This study aimed to understand the expectations and reasons given by those supporting this policy measure.

Methods: This mixed methods study was based on a voluntary online survey among 9444 French-speaking residents in Belgium.

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Background: The standard surgical treatment of endometrial carcinoma (EC) consisting of total hysterectomy with bilateral salpingo-oophorectomy drastically affects the quality of life of patients and creates a challenge for clinicians. Recent evidence-based guidelines of the European Society of Gynaecological Oncology (ESGO), the European SocieTy for Radiotherapy & Oncology (ESTRO) and the European Society of Pathology (ESP) provide comprehensive guidelines on all relevant issues of diagnosis and treatment in EC in a multidisciplinary setting. While also addressing work-up for fertility preservation treatments and the management and follow-up for fertility preservation, it was considered relevant to further extend the guidance on fertility sparing treatment.

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Quite strikingly, there is significant variation in Covid-19 vaccine coverage around the world. Some countries do not progress from around 2-3% while others are close to 100% coverage. In addition to some already known economic, health and sociodemographic predictors, the present research is interested in emotional factors that may predict a significant part of this cross-country variation.

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Purpose: Total elbow arthroplasty (TEA) is rarely performed compared to other arthroplasties. For many surgical procedures, literature shows better outcomes when they are performed by experienced surgeons and in so-called 'high-volume' hospitals. We systematically reviewed the literature on the relationship between surgical volume and outcomes following TEA.

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In this article, we tested the respective importance of low spatial frequencies (LSF) and high spatial frequencies (HSF) for conscious visual recognition of emotional stimuli by using an attentional blink paradigm. Thirty-eight participants were asked to identify and report two targets (happy faces) embedded in a rapid serial visual presentation of distractors (angry faces). During attentional blink, conscious perception of the second target (T2) is usually altered when the lag between the two targets is short (200-500 ms) but is restored at longer lags.

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Background: In 2020, SARS-CoV-2 and the COVID-19 pandemic had a huge impact on the access to and provision of ART treatments. Gradually, knowledge of the virus and its transmission has become available, allowing ART activities to resume. Still, questions on the impact of the virus on human gametes and fertility remain.

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Study Question: How should ART/preimplantation genetic testing (PGT) centres manage the detection of chromosomal mosaicism following PGT?

Summary Answer: Thirty good practice recommendations were formulated that can be used by ART/PGT centres as a basis for their own policy with regards to the management of 'mosaic' embryos.

What Is Known Already: The use of comprehensive chromosome screening technologies has provided a variety of data on the incidence of chromosomal mosaicism at the preimplantation stage of development and evidence is accumulating that clarifies the clinical outcomes after transfer of embryos with putative mosaic results, with regards to implantation, miscarriage and live birth rates, and neonatal outcomes.

Study Design Size Duration: This document was developed according to a predefined methodology for ESHRE good practice recommendations.

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