Publications by authors named "VAN-DER-Meer P"

Objectives: The aims of this study were to compare the characteristics of patients with and without diabetes and to use network analyses to compare biomarker profiles and associated pathways in patients with diabetes compared with those without diabetes, which might offer new avenues for potential therapeutic targets.

Background: Diabetes adversely affects clinical outcomes and complicates treatment in patients with heart failure (HF). A clear understanding of the pathophysiological processes associated with type 2 diabetes in HF is lacking.

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Aims: To study the association between an atrial fibrillation (AF) genetic risk score with prevalent AF and all-cause mortality in patients with heart failure.

Methods And Results: An AF genetic risk score was calculated in 3759 European ancestry individuals (1783 with sinus rhythm, 1976 with AF) from the BIOlogy Study to TAilored Treatment in Chronic Heart Failure (BIOSTAT-CHF) by summing 97 single nucleotide polymorphism (SNP) alleles (ranging from 0-2) weighted by the natural logarithm of the relative SNP risk from the latest AF genome-wide association study. Further, we assessed AF risk variance explained by additive SNP variation, and performance of clinical or genetic risk factors, and the combination in classifying AF prevalence.

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Aims: Iron deficiency (ID) is a common co-morbidity in heart failure (HF), associated with impaired functional capacity, poor quality of life and increased morbidity and mortality. Treatment with intravenous (i.v.

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Aims: Severe deficiency of the essential trace element selenium can cause myocardial dysfunction although the mechanism at cellular level is uncertain. Whether, in clinical practice, moderate selenium deficiency is associated with worse symptoms and outcome in patients with heart failure is unknown.

Methods And Results: BIOSTAT-CHF is a multinational, prospective, observational cohort study that enrolled patients with worsening heart failure.

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Aims: Cathepsin D is a ubiquitous lysosomal protease that is primarily secreted due to oxidative stress. The role of circulating cathepsin D in heart failure (HF) is unknown. The aim of this study is to determine the association between circulating cathepsin D levels and clinical outcomes in patients with HF and to investigate the biological settings that induce the release of cathepsin D in HF.

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In daily haematological practice, predicting bleeding in thrombocytopenic patients is difficult, and clinicians adhere to transfusion triggers to guide patients through the aplastic phase of chemotherapy. Platelet count is not the only determinant of bleeding and additional mechanisms for impending haemostasis are likely. Beside clot formation, platelets are essential for the maintenance of integrity of vascular beds.

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Aims: Heart failure is traditionally classified by left ventricular ejection fraction (LVEF), rather than by left ventricular (LV) geometry, with guideline-recommended therapies in heart failure with reduced ejection fraction (HFrEF) but not heart failure with preserved ejection fraction (HFpEF). Most patients with HFrEF have eccentric LV hypertrophy, but some have concentric LV hypertrophy. We aimed to compare clinical characteristics, biomarker patterns, and response to treatment of patients with HFrEF and eccentric vs.

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Article Synopsis
  • Peripartum cardiomyopathy (PPCM) is a serious heart condition that affects women with no prior heart issues, and is linked to the 16 kDa-prolactin fragment that causes vascular damage and heart failure.
  • In a study comparing healthy postpartum women to those with PPCM, PAI-1 levels were significantly higher in PPCM patients at baseline but decreased after six months, coinciding with an improvement in heart function (LVEF).
  • The researchers found that increased miR-146a levels in PPCM patients correlated with elevated PAI-1 and was associated with higher NF-κB activation in endothelial cells, suggesting a role of PAI-1 in the disease's underlying mechanisms.
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Article Synopsis
  • Anthracyclines, a type of chemotherapy, are linked to a higher risk of heart failure in young breast cancer survivors, and this study aims to uncover the long-term prevalence of heart dysfunction in these patients.
  • Researchers assessed cardiac function in 569 women who had breast cancer treatment 5-12 years prior, focusing on measures like left ventricular ejection fraction (LVEF) and global longitudinal strain (GLS), along with the NT-proBNP biomarker.
  • The findings revealed that those treated with anthracyclines showed significantly worse heart function markers compared to those who weren’t, indicating a need for ongoing monitoring of cardiac health in this population.
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Objectives: This study investigated associations between incident hyperkalemia during acute heart failure (HF) hospitalizations and changes in renin-angiotensin-aldosterone system (RAAS) inhibitors.

Background: Hyperkalemia is a potential complication of RAAS inhibitors. For patients with HF, fear of hyperkalemia may lead to failure to deliver guideline-recommended doses of RAAS inhibitors.

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Aims: Iron deficiency (ID) is common in heart failure (HF) patients and negatively impacts symptoms and prognosis. The aetiology of ID in HF is largely unknown. We studied determinants and the biomarker profile of ID in a large international HF cohort.

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Background: Reports on the clinical consequences of longer storage time of platelet concentrates are contradictory. The objective of this study was to assess whether longer storage times are associated with a higher risk of transfusion reactions.

Study Design And Methods: We gathered storage times of pooled platelet concentrates related to transfusion reactions reported to the national hemovigilance office from 2004 to 2015.

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Background: Guideline-recommended doses of angiotensin-converting-enzyme (ACE) inhibitors or angiotensin-receptor blockers (ARBs), and β blockers are similar for men and women with heart failure with reduced ejection fraction (HFrEF), even though there are known sex differences in pharmacokinetics of these drugs. We hypothesised that there might be sex differences in the optimal dose of ACE inhibitors or ARBs and β blockers in patients with HFrEF.

Methods: We did a post-hoc analysis of BIOSTAT-CHF, a prospective study in 11 European countries of patients with heart failure in whom initiation and up-titration of ACE inhibitors or ARBs and β blockers was encouraged by protocol.

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Emerging evidence supports that cancer incidence is increased in patients with cardiovascular (CV) disease and heart failure (HF), and patients with HF frequently die from cancer. Recently, data have been generated showing that circulating factors in relation to HF promote tumour growth and development in murine models, providing proof that a causal relationship exists between both diseases. Several common pathophysiological mechanisms linking HF to cancer exist, and include inflammation, neuro-hormonal activation, oxidative stress and a dysfunctional immune system.

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Background: Changes in renal function have been associated with differential outcomes in patients with acute heart failure (HF). However, individual trajectories of changes in renal function are unknown, and it is unclear whether they relate to different clinical characteristics and clinical outcomes. Our aim was to investigate the prognostic importance of individual trajectories of change in renal function in acute HF.

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Thromboelastography is a technique to evaluate the overall coagulation behaviour of blood and blood components. First, we evaluated the literature concerning the use of thromboelastography for characterizing coagulation behaviour of healthy volunteers, such as blood donors. Overall coagulation is sensitive to gender, most likely caused by the difference in haematocrit and plasma content of male versus female blood.

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Background: In heart failure (HF), levels of NT-proBNP are influenced by the presence of concomitant atrial fibrillation (AF), making it difficult to distinguish between HF versus AF in patients with raised NT-proBNP. It is unknown whether levels of GDF-15 are also influenced by AF in patients with HF. In this study we compared the plasma levels of NT-proBNP versus GDF-15 in patients with HF in AF versus sinus rhythm (SR).

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Peripartum cardiomyopathy (PPCM) is a potentially life-threatening condition typically presenting as heart failure with reduced ejection fraction (HFrEF) in the last month of pregnancy or in the months following delivery in women without another known cause of heart failure. This updated position statement summarizes the knowledge about pathophysiological mechanisms, risk factors, clinical presentation, diagnosis and management of PPCM. As shortness of breath, fatigue and leg oedema are common in the peripartum period, a high index of suspicion is required to not miss the diagnosis.

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Importance: Iron deficiency is present in half of patients with heart failure (HF) and is associated with increased morbidity and an impaired prognosis. Iron deficiency due to low iron storage (LIS) and defective iron utilization (DIU) are not entirely the same clinical problem, although they generally receive the same treatment.

Objective: To define and describe similarities and differences between LIS and DIU in patients with HF.

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Background: Emerging data in chronic kidney disease (CKD) patients suggest that iron deficiency and higher circulating levels of erythropoietin (EPO) stimulate the expression and concomitant cleavage of the osteocyte-derived, phosphate-regulating hormone fibroblast growth factor 23 (FGF23), a risk factor for premature mortality. To date, clinical implications of iron deficiency and high EPO levels in the general population, and the potential downstream role of FGF23, are unclear. Therefore, we aimed to determine the associations between iron deficiency and higher EPO levels with mortality, and the potential mediating role of FGF23, in a cohort of community-dwelling subjects.

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The 2013 (with updates in 2016 and 2017) American College of Cardiology/American Heart Association and 2016 European Society of Cardiology guidelines provide practical evidence-based clinical guidelines for the diagnosis and treatment of both acute and chronic heart failure (HF). Both guidelines address noninvasive and invasive testing to establish the diagnosis of HF with reduced ejection fraction and HF with preserved ejection fraction. Extensive trial evidence supports the use of guideline-directed medical therapy and device-based therapies for the optimal management of patients with HF with reduced ejection fraction.

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