Publications by authors named "Isaaec J Nijman"

To assess the cost-effectiveness of low-dose aspirin compared to placebo for the prevention of recurrent preterm birth from a healthcare perspective. This was a cost-effectiveness analysis alongside a multicenter, randomized, double-blinded, placebo-controlled trial. We included women with a singleton pregnancy and a previous spontaneous preterm birth <37 weeks of gestation of a singleton.

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Objective: To investigate a dose-response relationship between the magnitude of decrease in pediatric respiratory tract infections (RTI) during the 2020 implementation of non-pharmaceutical interventions (NPI) and the rise thereafter during NPI lifting.

Study Design: We conducted an interrupted, time-series analysis, based on a multinational surveillance system. All patients <16 years of age coming to medical attention with various symptoms and signs of RTI at 25 pediatric emergency departments from 13 European countries between January 2018 and June 2022 were included.

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Article Synopsis
  • The study assesses the effectiveness of white blood cell count (WBC) in predicting serious bacterial infections (SBI) in children compared to C reactive protein (CRP) and absolute neutrophil count (ANC).
  • After analyzing data from over 17,000 febrile children across multiple European emergency departments, WBC showed poor predictive value with a sensitivity of 56% and specificity of 74% for WBC >15.
  • The findings suggest that CRP is a better marker for identifying SBI in children, and WBC should only be used for specific cases rather than as a routine diagnostic tool.
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  • The study investigates how well clinicians accept real-time data imputation to address missing patient data in a clinical decision support system (CDSS) designed for assessing cardiovascular risk.
  • Seventeen clinicians evaluated a CDSS using a method called joint modelling imputation (JMI), assessing vignettes that simulated situations with missing data and provided different risk estimates.
  • Although the study found JMI useful for educational purposes, clinicians felt uncomfortable with the reliability of imputed predictions, indicating a need for more accurate data imputation for effective use in clinical practice.
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Recent work has shown evidence for the prognostic significance of tumor infiltrating B cells (B-TIL) in high grade serous ovarian carcinoma (HGSOC), the predominant histological subtype of ovarian cancer. However, it remains unknown how the favorable prognosis associated with B-TIL relates to the current standard treatments of primary debulking surgery (PDS) followed by chemotherapy or (neo-)adjuvant chemotherapy (NACT) combined with interval debulking surgery. To address this, we analyzed the prognostic impact of B-TIL in relationship to primary treatment and tumor infiltrating T cell status in a highly homogenous cohort of HGSOC patients.

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  • The CRUCIAL trial is studying the impact of allopurinol on brain injury in newborns with critical congenital heart disease (CCHD) undergoing heart surgery.
  • The aim is to understand how the drug is metabolized (pharmacokinetics) during different surgical phases and to see if current dosing achieves effective drug levels.
  • Results showed a complex drug absorption model with a 100% target attainment for allopurinol levels immediately after birth, but varying success rates during the surgical process, indicating adjustments may be needed in administration timing or dosage.
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Considering the conservation attention needed to keep viable the few remaining wild populations of the Critically Endangered northern white-cheeked gibbon (Nomascus leucogenys), there has been a serious paucity of research undertaken for the species. To improve the effectiveness of surveys of this and other gibbon species, and ultimately their conservation, it is important to better understand the variables that affect their singing behavior-the feature that is currently used in most gibbon population surveys. We collected singing and meteorological data from 320 days, between October 2020 and March 2021, at 80 different locations, during an auditory presence/non-detection survey of N.

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Background: Vulvar squamous cell carcinoma (VSCC) is a rare cancer for which the cornerstone of treatment is surgery with high complication rates. The unmet need is a less radical and more effective treatment for VSCC.

Primary Objectives: To investigate the impact of mono-immunotherapy pembrolizumab as neoadjuvant treatment for primary resectable VSCC patients.

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Background: Neonates with congenital heart disease are at risk for impaired brain development in utero, predisposing children to postnatal brain injury and adverse long-term neurodevelopmental outcomes. Given the vital role of the placenta in fetal growth, we assessed the incidence of placental pathology in fetal congenital heart disease and explored its association with total and regional brain volumes, gyrification, and brain injury after birth.

Methods And Results: Placentas from 96 term singleton pregnancies with severe fetal congenital heart disease were prospectively analyzed for macroscopic and microscopic pathology.

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Captive breeding is often seen as a solution to sustainably increasing the supply of individuals in the wildlife trade. To be an effective conservation measure this requires robust systems to verify the authenticity of captive-bred species. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) monitors the international trade in Listed species-which for many taxa is dominated by captive-bred individuals-using the Review of Captive Trade (RCT) process.

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Article Synopsis
  • * Using data from 12 European EDs, researchers analyzed presenting symptoms and management of febrile children under 18, identifying those suitable for a fast track system based on simplicity and minimal resource use.
  • * Findings revealed that respiratory symptoms were the most common, while neurological patients utilized more imaging and had higher admission rates, and gastrointestinal patients underwent more lab tests, indicating varying needs among the different symptom groups.
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Objective: To examine the relationship between perioperative brain injury and neurodevelopment during early childhood in patients with severe congenital heart disease (CHD).

Study Design: One hundred and seventy children with CHD and born at term who required cardiopulmonary bypass surgery in the first 6 weeks after birth were recruited from 3 European centers and underwent preoperative and postoperative brain MRIs. Uniform description of imaging findings was performed and an overall brain injury score was created, based on the sum of the worst preoperative or postoperative brain injury subscores.

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Civet coffee is produced with coffee beans that have passed through the digestive tract of civets which are then processed for drinking. Outlets, known as civet coffee tourism plantations are popular tourist attractions in Bali, Indonesia. These outlets keep caged civets for public viewing and sell civet coffee.

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Introduction: Several patients, who underwent major reconstruction under the care of an experienced pediatric urologist are now, as adults, several years later, appearing with long term problems and complications. This consensus process was undertaken to give an overview of long term consequences (and their management) of urological childhood surgery.

Material And Methods: Several known urologists with experience in life-long follow up and revisional surgery of patients with congenital conditions were asked to review literature and comment based on their experience about several complications of childhood surgery.

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In search of a potent small molecular PD-L1 inhibitor, we designed and synthesized a compound based on a 2-hydroxy-4-phenylthiophene-3-carbonitrile moiety. Ligand's performance was tested in vitro and compared side-by-side with a known PD-L1 antagonist with a proven bioactivity BMS1166. Subsequently, we modified both compounds to allow F labeling that could be used for PET imaging.

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Tumor budding (TB) is a strong biomarker of poor prognosis in colorectal cancer and other solid cancers. TB is defined as isolated single cancer cells or clusters of up to four cancer cells at the invasive tumor front. In areas with a large inflammatory response at the invasive front, single cells and cell clusters surrounding fragmented glands are observed appearing like TB.

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Objective: To study the impact of the COVID-19 pandemic and consequent lockdown on the number of diagnoses of gynaecological malignancies in the Netherlands.

Methods: We performed a retrospective cohort study using data from the Netherlands Cancer Registry (NCR) on women of 18 years and older diagnosed with invasive endometrial, ovarian, cervical or vulvar cancer in the period 2017-2021. Analyses were stratified for age, socioeconomical status (SES) and region.

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Children constitute 6-10% of all patients attending the emergency department (ED) by emergency medical services (EMS). However, discordant EMS use in children occurs in 37-61% with fever as an important risk factor. We aimed to describe EMS utilisation among febrile children attending European EDs.

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Article Synopsis
  • The study investigates the connection between genetic variants of the TNNI3K gene and various heart conditions like dilated cardiomyopathy (DCM) and cardiac conduction disease, emphasizing the inconsistent findings in previous research.
  • Researchers performed genetic testing on patients with heart issues and used data from the UK Biobank, identifying a higher occurrence of rare variants in DCM patients and linking specific novel variants to DCM and atrial fibrillation.
  • The results suggest that certain rare variants enhance the autophosphorylation of TNNI3K, indicating a potential mechanism for their role in causing heart diseases, while one variant appeared harmless due to reduced autophosphorylation activity. *
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Exploitation of wildlife represents one of the greatest threats to species survival according to the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. Whilst detrimental impacts of illegal trade are well recognised, legal trade is often equated to being sustainable despite the lack of evidence or data in the majority of cases. We review the sustainability of wildlife trade, the adequacy of tools, safeguards, and frameworks to understand and regulate trade, and identify gaps in data that undermine our ability to truly understand the sustainability of trade.

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Illegal and/or unsustainable trade is a major obstacle to effective primate conservation. The wildlife trade in the European Union (EU) and the United Kingdom (UK) is significant, but for many species, such as primates, the trade is poorly understood and sparsely reported. All EU countries are Party to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES); all primates are listed on Appendix I or II of CITES and are included on Annex A or B of Regulation (EC) No 338/97.

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Objectives: We evaluated the presence and frequency of spin practices and poor reporting standards in studies that developed and/or validated clinical prediction models using supervised machine learning techniques.

Study Design And Setting: We systematically searched PubMed from 01/2018 to 12/2019 to identify diagnostic and prognostic prediction model studies using supervised machine learning. No restrictions were placed on data source, outcome, or clinical specialty.

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Objective: Lymph node metastases (pN+) in presumed early-stage cervical cancer negatively impact prognosis. Using federated learning, we aimed to develop a tool to identify a group of women at low risk of pN+, to guide the shared decision-making process concerning the extent of lymph node dissection.

Methods: Women with cervical cancer between 2005 and 2020 were identified retrospectively from population-based registries: the Danish Gynaecological Cancer Database, Swedish Quality Registry for Gynaecologic Cancer and Netherlands Cancer Registry.

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