Pyotr G. Platonov
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View article: Associations between biomarkers and p-wave indices in relation to atrial fibrillation development in heart failure patients
Associations between biomarkers and p-wave indices in relation to atrial fibrillation development in heart failure patients Open
In patients with advanced HF, fibrotic biomarkers were associated with incident AF. Low P-wave amplitude and abnormal P-wave axis (<0°) were associated with incident AF. This may reflect an abnormal LA-conduction pathway and a displaced in…
View article: Catheter ablation of arrhythmias: 15 years of development: data from the Swedish Catheter Ablation Registry
Catheter ablation of arrhythmias: 15 years of development: data from the Swedish Catheter Ablation Registry Open
Aims The number of patients undergoing catheter ablation is continuously growing, and techniques are improving. However, studies reporting contemporary data on catheter ablations from large real-world populations are scarce. This study aim…
View article: New‐Onset Atrial Fibrillation During ST‐Segment–Elevation Myocardial Infarction: Risk of Recurrence and Its Clinical Impact During 10 Years of Follow‐Up
New‐Onset Atrial Fibrillation During ST‐Segment–Elevation Myocardial Infarction: Risk of Recurrence and Its Clinical Impact During 10 Years of Follow‐Up Open
Background Atrial fibrillation (AF) often complicates ST‐segment–elevation myocardial infarction (STEMI), but data on AF recurrence after first‐ever AF during STEMI are scarce. We aimed at assessing the risk of AF recurrence after first‐ev…
View article: ECG-based beat-to-beat assessment of AV node conduction properties during AF
ECG-based beat-to-beat assessment of AV node conduction properties during AF Open
Introduction The refractory period and conduction delay of the atrioventricular (AV) node play a crucial role in regulating the heart rate during atrial fibrillation (AF). Beat-to-beat variations in these properties are known to be induced…
View article: Challenging ECG of the month A peculiar brady-arrhythmia in acute inferior wall infarction
Challenging ECG of the month A peculiar brady-arrhythmia in acute inferior wall infarction Open
View article: Associations between biomarkers and p-wave indices in relation to atrial fibrillation development in heart failure patients
Associations between biomarkers and p-wave indices in relation to atrial fibrillation development in heart failure patients Open
Background The predictive value of atrial conduction abnormalities, reflected by P-wave indices (PWI), and their association with biomarkers signaling fibrosis for the development of atrial fibrillation (AF) in patients with heart failure …
View article: Long-term adherence to flecainide as a rhythm control therapy in recurrent atrial fibrillation – a retrospective cohort study
Long-term adherence to flecainide as a rhythm control therapy in recurrent atrial fibrillation – a retrospective cohort study Open
Background. Flecainide is a first-line rhythm control treatment for patients with atrial fibrillation (AF), however long-term treatment outcomes are understudied. Objective. To investigate associations of electro- (ECG) and e…
View article: [Beat-to-beat AV nodal assessment] ECG-based beat-to-beat assessment of AV node conduction properties during AF
[Beat-to-beat AV nodal assessment] ECG-based beat-to-beat assessment of AV node conduction properties during AF Open
The refractory period and conduction delay of the atrioventricular (AV) node play a crucial role in regulating the heart rate during atrial fibrillation (AF). Beat-to-beat variations in these properties are known to be induced by the auton…
View article: A computational model to study hemodynamics during atrial fibrillation
A computational model to study hemodynamics during atrial fibrillation Open
Atrial fibrillation (AF) is associated with reduced cardiac output, which is correlated with increased symptomatic burden and declined quality of life. Predicting hemodynamic effects of AF remains challenging due to the complex interplay o…
View article: Tilt-induced changes in f-wave characteristics during atrial fibrillation: an experimental and computational investigation
Tilt-induced changes in f-wave characteristics during atrial fibrillation: an experimental and computational investigation Open
Introduction This study explores transient and stationary effects of sympathetic and parasympathetic stimulation on f-wave characteristics in atrial fibrillation (AF) patients undergoing a tilt test. Transient phase is defined as the initi…
View article: ECG-based machine-learning approach to differentiate cardiac sarcoidosis from arrhythmogenic right ventricular cardiomyopathy
ECG-based machine-learning approach to differentiate cardiac sarcoidosis from arrhythmogenic right ventricular cardiomyopathy Open
Background Cardiac sarcoidosis (CS) represents a rare and challenging condition with poor prognosis and complex diagnosis. This inflammatory disease is characterized by the formation of noncaseating granulomas in the myocardium and its cli…
View article: Detailed analysis of PAC characteristics in ambulatory ECG data can improve atrial fibrillation risk prediction
Detailed analysis of PAC characteristics in ambulatory ECG data can improve atrial fibrillation risk prediction Open
Introduction Premature atrial complexes (PACs) are associated with atrial fibrillation (AF) risk, but also common in the general population. The origin and mechanism through which PACs arise lead to different electrocardiographic presentat…
View article: Lack of atrial branch perfusion during acute ischemia is not associated with new-onset atrial fibrillation during STEMI
Lack of atrial branch perfusion during acute ischemia is not associated with new-onset atrial fibrillation during STEMI Open
The lack of atrial branch perfusion during STEMI was not associated with new-onset AF either during or after STEMI.
View article: Signal‐Averaged ECG in the Diagnostic Workup for Arrhythmogenic Cardiomyopathy: Insights From the Nordic ARVC Registry
Signal‐Averaged ECG in the Diagnostic Workup for Arrhythmogenic Cardiomyopathy: Insights From the Nordic ARVC Registry Open
Background The diagnostic role of signal‐averaged ECG (SAECG) in arrhythmogenic right ventricular cardiomyopathy (ARVC) has lately been questioned. We assessed the value of SAECG‐derived late ventricular potentials (LP) in ARVC diagnosis a…
View article: Artificial intelligence for direct-to-physician reporting of ambulatory electrocardiography
Artificial intelligence for direct-to-physician reporting of ambulatory electrocardiography Open
Developments in ambulatory electrocardiogram (ECG) technology have led to vast amounts of ECG data that currently need to be interpreted by human technicians. Here we tested an artificial intelligence (AI) algorithm for direct-to-physician…
View article: Increased fluid accumulation, reduced physical activity and heart rate variability during national holidays in patients with cardiac implantable electronic devices
Increased fluid accumulation, reduced physical activity and heart rate variability during national holidays in patients with cardiac implantable electronic devices Open
Aims The higher incidence of myocardial infarction (MI) during national holidays could be caused by overindulgence of food and beverages, potentially straining the heart of vulnerable individuals. Monitoring decreased thoracic impedance by…
View article: Arterial Stiffness and Markers of Atrial Myopathy
Arterial Stiffness and Markers of Atrial Myopathy Open
Background Arterial stiffness, measured using carotid‐femoral pulse wave velocity (c‐f PWV) and heart rate‐corrected augmentation index (Aix75), is associated with cardiovascular disease, and in some studies incident atrial fibrillation (A…
View article: Case presentation of acute ischemia induced ST-depression masking Brugada syndrome ECG pattern in a relatively young patient
Case presentation of acute ischemia induced ST-depression masking Brugada syndrome ECG pattern in a relatively young patient Open
ECG in Brugada syndrome (BrS) is characterized by a ST-segment elevation in the right precordial leads. Overlap between ST-segment changes in BrS and ischemia may lead to diagnostic challenges. We report a case of a male patient presented …
View article: Cardiovascular autonomic function in middle-aged people with long-term cervical and upper thoracic spinal cord injuries
Cardiovascular autonomic function in middle-aged people with long-term cervical and upper thoracic spinal cord injuries Open
ClinicalTrials.gov identifier: NCT03515122.
View article: Natural Course of Electrocardiographic Features in Arrhythmogenic Right Ventricular Cardiomyopathy and Their Relation to Ventricular Arrhythmic Events
Natural Course of Electrocardiographic Features in Arrhythmogenic Right Ventricular Cardiomyopathy and Their Relation to Ventricular Arrhythmic Events Open
Background Electrocardiographic abnormalities are common in arrhythmogenic right ventricular cardiomyopathy and are included in the 2010 Task Force Criteria. Their time course, however, remains uncertain. In this retrospective observationa…
View article: Risk factors and incidence of new-onset heart failure with conventional pacemaker implant: A nationwide study
Risk factors and incidence of new-onset heart failure with conventional pacemaker implant: A nationwide study Open
View article: T-Wave Peak-to-End Changes Quantified by Time-Warping Predicts Ventricular Fibrillation in a Porcine Myocardial Infarction Model
T-Wave Peak-to-End Changes Quantified by Time-Warping Predicts Ventricular Fibrillation in a Porcine Myocardial Infarction Model Open
The time-warping-based index, [Formula: see text], is a stronger VF predictor than [Formula: see text] during ischemia in a porcine model, advising for further clinical exploration studies in humans.
View article: ECG-based estimation of respiration-induced autonomic modulation of AV nodal conduction during atrial fibrillation
ECG-based estimation of respiration-induced autonomic modulation of AV nodal conduction during atrial fibrillation Open
Introduction: Information about autonomic nervous system (ANS) activity may offer insights about atrial fibrillation (AF) progression and support personalized AF treatment but is not easily accessible from the ECG. In this study, we propos…
View article: Dietary sodium intake and atrial myopathy
Dietary sodium intake and atrial myopathy Open
Background Diagnostic markers associated with atrial cardiomyopathy, a precursor state to atrial fibrillation (AF), include premature atrial complex (PACs) frequency, left atrial volume index (LAVi) and p-wave indices. Life-style factors a…
View article: Thoracic impedance during national holidays
Thoracic impedance during national holidays Open
Background Several studies have observed increased incidence of myocardial infarctions during Christmas and national holidays. Emotional stress, overindulgence in food and alcohol have been suggested as potential underlying mechanisms. Mon…
View article: Prevalence of left atrial appendage thrombus and spontaneous echo contrast on transesophageal echocardiography in patients scheduled for pulmonary vein isolation
Prevalence of left atrial appendage thrombus and spontaneous echo contrast on transesophageal echocardiography in patients scheduled for pulmonary vein isolation Open
Background To avoid causing a thromboembolic event in patients undergoing catheter ablation for atrial fibrillation (AF), patients are treated with oral anticoagulants (OAC) prior to the procedure. Despite being on anticoagulants, some pat…
View article: Age-Stratified Clinical Outcome in Patients with Known Heart Failure Who Receive Pacemaker, Resynchronization Therapy, or Defibrillator Implants
Age-Stratified Clinical Outcome in Patients with Known Heart Failure Who Receive Pacemaker, Resynchronization Therapy, or Defibrillator Implants Open
Introduction: Patients with heart failure (HF) and bradycardia may be eligible for different types of cardiac implantable electronic devices (CIED), depending on the presence of atrioventricular conduction disease, age, and comorbidities. …
View article: The ABC‐Stroke Risk Score and Effects of Atrial Fibrillation Screening on Stroke Prevention: Results From the Randomized LOOP Study
The ABC‐Stroke Risk Score and Effects of Atrial Fibrillation Screening on Stroke Prevention: Results From the Randomized LOOP Study Open
Background The ABC‐stroke score is a risk scheme for prediction of stroke or systemic embolism (SE) in atrial fibrillation (AF). This study sought to examine whether the score could be useful in predicting stroke in AF‐naïve individuals an…
View article: Model-based estimation of AV-nodal refractory period and conduction delay trends from ECG
Model-based estimation of AV-nodal refractory period and conduction delay trends from ECG Open
Introduction: Atrial fibrillation (AF) is the most common arrhythmia, associated with significant burdens to patients and the healthcare system. The atrioventricular (AV) node plays a vital role in regulating heart rate during AF by filter…
View article: Implantable cardioverter defibrillator use in arrhythmogenic right ventricular cardiomyopathy in North America and Europe
Implantable cardioverter defibrillator use in arrhythmogenic right ventricular cardiomyopathy in North America and Europe Open
Background and Aims Implantable cardioverter-defibrillators (ICDs) are critical for preventing sudden cardiac death (SCD) in arrhythmogenic right ventricular cardiomyopathy (ARVC). This study aims to identify cross-continental differences …