Jan Verwerft

ORCID: 0000-0003-2697-0825
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About
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Research Areas
  • Cardiovascular Function and Risk Factors
  • Pulmonary Hypertension Research and Treatments
  • Cardiac Valve Diseases and Treatments
  • Cardiac Imaging and Diagnostics
  • Cardiovascular and exercise physiology
  • Cardiac pacing and defibrillation studies
  • Cardiovascular Effects of Exercise
  • Heart Failure Treatment and Management
  • Cardiac Arrhythmias and Treatments
  • Hemodynamic Monitoring and Therapy
  • Atrial Fibrillation Management and Outcomes
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Cardiovascular and Diving-Related Complications
  • Neurogenetic and Muscular Disorders Research
  • Cardiomyopathy and Myosin Studies
  • Erythropoietin and Anemia Treatment
  • Mechanical Circulatory Support Devices
  • Coronary Interventions and Diagnostics
  • Body Composition Measurement Techniques
  • Cardiac tumors and thrombi
  • Genetic Syndromes and Imprinting
  • Ultrasound in Clinical Applications
  • Peripheral Artery Disease Management
  • Genomics and Rare Diseases
  • Heart Rate Variability and Autonomic Control

Hasselt University
2020-2025

Hartcentrum Hasselt
2021-2025

Jessa Hospital
2014-2024

University of Pisa
2024

Heart failure with preserved ejection fraction (HFpEF) is a syndrome heterogeneous presentation. This study provides an in-;depth description of haemodynamic and metabolic alterations revealed by systematic assessment through cardiopulmonary exercise testing combined echocardiography (CPETecho) within dedicated dyspnoea clinic.Consecutive patients (n = 297), referred to clinic using standardized workup including CPETecho, HFpEF diagnosed H2FPEF score ≥6 or HFA-PEFF ≥5, were evaluated. A...

10.1093/eurheartj/ehad141 article EN European Heart Journal 2023-03-16

Abstract Background Exercise-induced pulmonary hypertension, characterized by mean artery pressure over cardiac output slope (mPAP/CO slope) > 3mmHg/L/min is associated with worse outcome in greater than moderate primary mitral regurgitation (PMR). However, the prognostic value of right ventricle to coupling (RVPAc) unknown. Purpose Assess RVPAc; determine additional exercise rest RVPAc and compare these findings mPAP/CO slope. Methods The single center study included consecutive...

10.1093/ehjci/jeae333.173 article EN European Heart Journal - Cardiovascular Imaging 2025-01-01

Abstract Background Pulmonary artery pressure corrected for cardiac output (mPAP/CO) assessed by exercise echocardiography and calculated as the mPAP/CO slope improves risk stratification in various populations. However, it is unclear whether simplified alternatives have a similar predictive ability outcomes. Purpose To evaluate methodology employed to calculate affects prognostic assessment. Methods This secondary analysis of multicenter cohort study that included patients with unexplained...

10.1093/ehjci/jeae333.344 article EN European Heart Journal - Cardiovascular Imaging 2025-01-01

Abstract Background According to the Fick equation, oxygen uptake (VO2) equals product of cardiac output (CO) and arteriovenous difference (a-vO2Diff). Cardiopulmonary exercise testing (CPET) provides pulse (O2pulse) as ratio VO2 heart rate. The O2pulse is often considered a surrogate for stroke volume (SV) during effort, ignoring AVO2Diff, assess hemodynamic response exercise. Purpose To compare SV measured independently by simultaneous CPET echocardiography (CPETecho). Methods Observation...

10.1093/ehjci/jeae333.330 article EN European Heart Journal - Cardiovascular Imaging 2025-01-01

Abstract Aims Iron deficiency is common in heart failure with reduced ejection fraction (HFrEF). In patients cardiac resynchronization therapy (CRT), it associated a diminished reverse remodelling response and poor functional improvement. The latter partially related to loss contractile force at higher rates (negative force–frequency relationship). Methods results effect of intravenous ferric carboxymaltose on following (IRON‐CRT) trial multicentre, prospective, randomized, double‐blind...

10.1002/ehf2.12503 article EN cc-by-nc ESC Heart Failure 2019-09-28

To study the impact of heart failure with preserved ejection fraction (HFpEF) vs. aortic stenosis (AS) lesion severity on left ventricular (LV) hypertrophy, diastolic dysfunction, atrial (LA) haemodynamics, and exercise capacity.

10.1093/ehjci/jead276 article EN European Heart Journal - Cardiovascular Imaging 2023-10-23

Women are at greater risk for heart failure with preserved ejection fraction (HFpEF).

10.1016/j.jacadv.2024.101039 article EN cc-by-nc-nd JACC Advances 2024-06-13

Half of patients with heart failure preserved ejection fraction (HFpEF) remain undiagnosed by resting evaluation alone. Therefore, exercise testing is proposed. The diastolic stress test (DST), however, has limited sensitivity. We aimed to determine the clinical significance adding mean pulmonary artery pressure over cardiac output (mPAP/CO) slope DST in suspected HFpEF.

10.1161/jaha.123.032228 article EN cc-by-nc-nd Journal of the American Heart Association 2024-07-19

Abstract Aims Low cardiorespiratory fitness (CRF) is associated with functional disability, heart failure and mortality. Left ventricular (LV) end-diastolic volume (LVEDV) has been linked CRF, but its utility as a diagnostic marker of low CRF not tested. Methods This multi-center international cohort examined the relationship between LV size on echocardiography (peak oxygen uptake [peak VO2] from cardiopulmonary exercise testing) in individuals ejection fraction ≥50%. Absolute BSA-indexed...

10.1093/eurjpc/zwae363 article EN European Journal of Preventive Cardiology 2024-11-01

Cardiac output limitation is a fundamental feature of heart failure with preserved ejection fraction (HFpEF) but the relative contribution its determinants in symptomatic vs. asymptomatic stages are not well characterized. We aimed to gain insight into disease mechanisms by performing comprehensive comparative non-invasive exercise imaging patients across spectrum.We performed bicycle stress echocardiography 10 healthy controls, 13 hypertensive left ventricular (LV) concentric remodelling...

10.1093/ehjci/jeac041 article EN European Heart Journal - Cardiovascular Imaging 2022-02-24
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