Niels Risum

ORCID: 0000-0002-0357-9164
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About
Contact & Profiles
Research Areas
  • Cardiac pacing and defibrillation studies
  • Cardiac Arrhythmias and Treatments
  • Cardiovascular Function and Risk Factors
  • Cardiac electrophysiology and arrhythmias
  • Cardiac Imaging and Diagnostics
  • Neurological disorders and treatments
  • Cardiac Structural Anomalies and Repair
  • Cardiac Valve Diseases and Treatments
  • Cardiomyopathy and Myosin Studies
  • Heart Failure Treatment and Management
  • Muscle activation and electromyography studies
  • ECG Monitoring and Analysis
  • Congenital Heart Disease Studies
  • Potassium and Related Disorders
  • Cardiac Arrest and Resuscitation
  • Cardiovascular and exercise physiology
  • Atrial Fibrillation Management and Outcomes
  • Advanced MRI Techniques and Applications
  • Health Systems, Economic Evaluations, Quality of Life
  • Venous Thromboembolism Diagnosis and Management
  • Cardiovascular Syncope and Autonomic Disorders
  • Cardiovascular Effects of Exercise
  • Artificial Intelligence in Healthcare and Education
  • Pulmonary Hypertension Research and Treatments
  • Infective Endocarditis Diagnosis and Management

Copenhagen University Hospital
2015-2025

Rigshospitalet
2016-2025

Gentofte Hospital
2010-2023

University of Copenhagen
2015-2023

Nordsjællands Hospital
2019

Hvidovre Hospital
2014-2017

Duke Medical Center
2012-2014

Aalborg University
2014

UPMC Health System
2014

Duke University Health System
2013

The objective of the current study is to investigate risk heart failure (HF) after implantation a pacemaker (PM) with right ventricular pacing (RVP) lead in comparison matched cohort without PM and factors associated this risk.All patients known history HF who had implanted an RVP between 2000 2014 (n = 27 704) were identified using Danish nationwide registries. An age- gender-matched control (matched 1:5, n 138 520) was compare risk. Outcome cumulative incidence including fatal within first...

10.1093/eurheartj/ehz584 article EN European Heart Journal 2019-07-30

AimsThe management and outcomes of patients with functional moderate/severe mitral regurgitation severe left ventricular (LV) systolic dysfunction are not well defined. We sought to determine the characteristics, strategies, moderate or (MR) LV dysfunction.

10.1093/eurheartj/ehv343 article EN European Heart Journal 2015-08-01

AimsPre-implant assessment of longitudinal mechanical dyssynchrony using cross-correlation analysis (XCA) was tested for association with long-term survival and compared other tissue Doppler imaging (TDI)-derived indices.

10.1093/eurheartj/ehs035 article EN European Heart Journal 2012-03-04

Artificial intelligence (AI), such as machine learning (ML), shows great promise for improving clinical decision-making in cardiac diseases by outperforming statistical-based models. However, few AI-based tools have been implemented cardiology clinics because of the sociotechnical challenges during transitioning from algorithm development to real-world implementation.

10.2196/26964 article EN cc-by JMIR Human Factors 2021-10-12

Mechanical loading is known to increase connective tissue blood flow of human tendons and cause local release vasodilatory substances. The present study investigated the importance prostaglandins (PG) formed by cyclo-oxygenase isoforms (COX-1 2) for exercise-related in tissue. Healthy individuals (n = 24, age: 23-31 years) underwent 30 min intermittent, isometric, plantarflexion with both calf muscles either without 6, Control, C) or blockade PG formation, COX-2 specific 10, Celecoxib 2 x...

10.1113/jphysiol.2003.046094 article EN The Journal of Physiology 2003-08-30

Coronavirus disease 2019 (COVID-19) may be associated with cardiac arrhythmias in hospitalized patients, but data from the ICU setting are limited. We aimed to describe epidemiology of patients COVID-19.We conducted a multicenter, retrospective cohort study including all an airway sample positive for severe acute respiratory syndrome corona-virus 2 March 1st June Capital Region Denmark (1.8 million inhabitants). registered ICU, potential risk factors, interventions used and outcomes.From...

10.1111/aas.13806 article EN Acta Anaesthesiologica Scandinavica 2021-02-27

Abstract Background Derangement of plasma potassium (p-K) is associated with an increased risk developing cardiac arrhythmias. Small studies indicate that variations in p-K levels may also affect the mechanical function cardiomyocytes. A recent clinical study demonstrated improvements myocardial by echocardiography after a short follow-up patients randomized to increasing treatment. However, long-term effect on unknown. Purpose To investigate if treatment improves diastolic and systolic...

10.1093/ehjci/jeae333.083 article EN European Heart Journal - Cardiovascular Imaging 2025-01-01

Abstract Aim To investigate whether a compressive dressing after pacemaker or implantable cardioverter defibrillator (ICD) implantation and replacement applied for three hours can prevent bleeding, hematomas pain. Method The study was quasi-experimental interventional including patients scheduled of an ICD. In alternating months either received (intervention group) no (control group). Patients were followed at the catheterization lab, on ward until first outpatient control visit (after 1-3...

10.62680/pr1424 article EN Deleted Journal 2025-01-01

Left ventricular function is a well-established predictor of malignant arrhythmias, but little known about the importance right (RV) function. The aim this study was to investigate RV for prediction sudden cardiac death (SCD) or arrhythmias (VAs) after acute myocardial infarction (MI).A total 790 patients with MI were prospectively included. All had 2D strain echocardiography performed evaluate free wall (RVS) and mechanical dispersion (MD) defined as standard deviation time peak negative in...

10.1093/ehjci/jex184 article EN European Heart Journal - Cardiovascular Imaging 2017-06-26

Only 30% of patients receiving an implantable cardioverter defibrillator (ICD) for primary prevention receive appropriately therapy. We sought to investigate the value tissue Doppler imaging (TDI) predict ventricular tachycardia (VT), fibrillation (VF), and cardiovascular mortality (CVD) in with ICD. In total, 151 ICD meeting criteria no history arrhythmias were included. All participants examined by conventional 2D echocardiography TDI echocardiography. Longitudinal systolic ( s ′), early...

10.1093/ehjci/jew066 article EN European Heart Journal - Cardiovascular Imaging 2016-04-15
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