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- Lennart Bergfeldt
Lennart Bergfeldt
Professor emeritus
Avd för molekylär och klinisk medicin-
Bleeding risk assessment in patients with new-onset atrial fibrillation after coronary surgery: a proof-of-concept
study
Mary Rezk, Amar Taha, Andreas Martinsson, Susanne Nielsen, Tomas Gudbjartsson, Lennart Bergfeldt, Florian Herrmann, Emma Hansson, Anders Jeppsson
EUROPEAN HEART JOURNAL-CARDIOVASCULAR PHARMACOTHERAPY - 2026 -
Short-term effects of weight-loading on heart rate variability in obese
adults
Jakob Bellman, Per-Anders Jansson, John-Olov Jansson, Claes Ohlsson, Lennart Bergfeldt
PHYSIOLOGICAL REPORTS - 2026 -
JRM DOES AEROBIC EXERCISE AFFECT MEMORY, ATTENTION, WORKING MEMORY, AND FATIGUE AFTER ACQUIRED BRAIN INJURY? A SINGLE-BLINDED, RANDOMIZED CONTROLLED PILOT
STUDY
Eygló Ingólfsdóttir, Ulla Bergfeldt, Märta Berthold Lindstedt, Lennart Bergfeldt, Tie Qiang Li, Tomas Jonsson, Marika C. Möller
Journal of Rehabilitation Medicine - 2026 -
LQT1 patients have augmented response of repolarization dispersion following atropine induced heart rate increase versus healthy
controls
Pia Dahlberg, Karl-Jonas Axelsson, Steen M. Jensen, Gunilla Lundahl, Lennart Gransberg, Lennart Bergfeldt
PHYSIOLOGICAL REPORTS - 2026 -
Sinoatrial node sympathovagal balance and intrinsic heart rate at rest: no difference between young healthy women and
men
Lennart Bergfeldt, Farzad Vahedi
American Journal of Physiology Heart and Circulatory Physiology - 2026 -
Repolarization adaptation to rapid change in heart rate in human models - a
review
Lennart Bergfeldt, Karl-Jonas Axelsson, Pia Dahlberg, Farzad Vahedi, Gunilla Lundahl, Lennart Gransberg
JOURNAL OF PHYSIOLOGY-LONDON - 2025 -
Ischemia induced repolarization dispersion changes and ventricular arrhythmia: Validation of Frank vectorcardiography parameters: A
review
Lennart Bergfeldt, Lennart Gransberg, Gunilla Lundahl
HEART RHYTHM O2 - 2025 -
Aortic regurgitation in ankylosing spondylitis-an echocardiography follow-up
study.
Karin Bengtsson, Georgios Mourtzinis, Anna Deminger, Eva Klingberg, Margareta Scharin Täng, Lennart T. H. Jacobsson, Lennart Bergfeldt, Helena Forsblad d'Elia
Clinical rheumatology - 2025 -
Sudden Arrhythmic Death Syndrome in the Young: Risk Factors are Identifiable Prior to Sudden Cardiac
Arrest
Matilda Frisk Torell, Bodil Svennblad, Aase Wisten, Erik Börjesson, Lennart Bergfeldt, Eva Lena Stattin, Mats Börjesson
American Journal of Cardiology - 2025 -
Long-term Health-related Quality of Life and Rhythm-Outcomes of Catheter Ablation versus Antiarrhythmic Drugs in Patients with Atrial
Fibrillation.
Victoria Svedung Wettervik, Jonas Schwieler, Lennart Bergfeldt, Göran Kennebäck, Steen Jensen, Aigars Rubulis, Elena Sciaraffia, Carina Blomström-Lundqvist
Heart rhythm - 2025 -
Abnormal QRS-T angles in 5796 women and men aged 50-64: an electrocardiographic analysis providing mechanistic
insights.
Lennart Bergfeldt, Rut Hellsing, David Molnar, Amar Taha, Gunilla Lundahl, Lennart Gransberg, Göran Bergström
Journal of electrocardiology - 2024 -
New-onset atrial fibrillation after coronary surgery and stroke risk: a nationwide cohort
study.
Amar Taha, Andreas Martinsson, Susanne Nielsen, Mary Rezk, Aldina Pivodic, Tomas Gudbjartsson, Florian E M Herrmann, Lennart Bergfeldt, Anders Jeppsson
Heart (British Cardiac Society) - 2024 -
Asymptomatic Wolff-Parkinson-White with shortest pre-excited R-R interval during atrial fibrillation ≤250 ms: When to go
invasive?
Csaba Herczku, Lennart Bergfeldt
HeartRhythm Case Reports - 2024 -
Spatio-temporal repolarization dispersion before and after exercise in patients with long QT syndrome type 1 vs controls - probing into the arrhythmia
substrate.
Pia Dahlberg, Karl-Jonas Axelsson, Annika Rydberg, Gunilla Lundahl, Lennart Gransberg, Lennart Bergfeldt
American journal of physiology. Heart and circulatory physiology - 2023 -
Cardiopulmonary bypass management and risk of new-onset atrial fibrillation after cardiac
surgery.
Amar Taha, Anders Hjärpe, Andreas Martinsson, Susanne Nielsen, Mikael Barbu, Aldina Pivodic, Lukas Lannemyr, Lennart Bergfeldt, Anders Jeppsson
Interdisciplinary cardiovascular and thoracic surgery - 2023 -
Associations between new-onset postoperative atrial fibrillation and long-term outcome in patients undergoing surgical aortic valve
replacement.
Mary Rezk, Amar Taha, Susanne Nielsen, Andreas Martinsson, Lennart Bergfeldt, Tomas Gudbjartsson, Stefan Franzén, Anders Jeppsson
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery - 2023 -
Cardiac arrhythmias and conduction abnormalities in patients with type 2
diabetes
Araz Rawshani, D. K. McGuire, Elmir Omerovic, N. Sattar, J. J. V. McMurray, Ulf Smith, Björn Redfors, Lennart Bergfeldt, Björn Eliasson, Jan Borén, D. L. Bhatt, Göran Bergström, Aidin Rawshani
Scientific Reports - 2023 -
Non-invasive electrophysiological differences between women and men:differences in body size not an
explanation.
Lennart Bergfeldt, Adnan Noor Baloch, Gunilla Lundahl, Lennart Gransberg, Göran Bergström
American journal of physiology. Heart and circulatory physiology - 2022 -
Accelerated QT adaptation following atropine-induced heart rate increase in LQT1 patients versus healthy controls: A sign of disturbed
hysteresis.
Pia Dahlberg, Karl-Jonas Axelsson, Steen M Jensen, Gunilla Lundahl, Farzad Vahedi, Rosie Perkins, Lennart Gransberg, Lennart Bergfeldt
Physiological reports - 2022 -
Clinical Course of Postoperative Atrial Fibrillation After Cardiac Surgery and Long-Term
Outcome.
Mary Rezk, Amar Taha, Susanne Nielsen, Tomas Gudbjartsson, Lennart Bergfeldt, Anders Ahlsson, Anders Jeppsson
The Annals of thoracic surgery - 2022 -
Stroke Risk Stratification in Patients With Postoperative Atrial Fibrillation After Coronary Artery Bypass
Grafting.
Amar Taha, Susanne Nielsen, Stefan Franzén, Mary Rezk, Anders Ahlsson, Leif Friberg, S. Björck, Anders Jeppsson, Lennart Bergfeldt
Journal of the American Heart Association - 2022 -
Effects of 3 months of detraining following cardiac rehabilitation in patients with atrial
fibrillation.
Maria Borland, Lennart Bergfeldt, Åsa Cider, Agneta Rosenkvist, Marika Jakobsson, Kristin Olsson, Adam Lundwall, Lars Andersson, Lena Margareta Nordeman
European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity - 2022 -
Accessory pathway properties are similar in symptomatic and asymptomatic
preexcitation.
Anette Jemtrén, Lennart Bergfeldt, Per Insulander, Aigars Rubulis, Jari Tapanainen, Mats Jensen-Urstad
Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing - 2022 -
Adaptation of ventricular repolarization dispersion during heart rate increase in humans: A roller coaster
process.
Karl-Jonas Axelsson, Lennart Gransberg, Gunilla Lundahl, Lennart Bergfeldt
Journal of electrocardiology - 2021 -
Adaptation of ventricular repolarization time following abrupt changes in heart rate: comparisons and reproducibility of repeated atrial and ventricular
pacing.
Karl-Jonas Axelsson, Lennart Gransberg, Gunilla Lundahl, Farzad Vahedi, Lennart Bergfeldt
American journal of physiology. Heart and circulatory physiology - 2021 -
FDA safety warning on the cardiac effects of lamotrigine: An advisory from the Ad Hoc ILAE/AES Task
Force.
Jacqueline A French, Emilio Peruccca, Josemir W Sander, Lennart Bergfeldt, Michel Baulac, David S Auerbach, Mark Keezer, Roland D Thijs, Orrin Devinsky, David G Vossler, Timothy E Welty
Epilepsia open - 2021 -
Atrial fibrillation burden, episode duration and frequency in relation to quality of life in patients with implantable cardiac
monitor.
Victoria Jansson, Lennart Bergfeldt, Jonas Schwieler, Göran Kennebäck, Aigars Rubulis, Steen M Jensen , Pekka Raatikainen, Elena Sciaraffia, Carina Blomström-Lundqvist
International journal of cardiology. Heart & vasculature - 2021 -
The results of health-related quality of life assessment depend on the prevailing rhythm at the assessment: Experience from the CAPTAF trial (Catheter Ablation Compared with Pharmacological Therapy for Atrial
Fibrillation).
Victoria Jansson, Jonas Schwieler, Lennart Bergfeldt, Göran Kennebäck, Steen M Jensen, Elena Sciaraffia, Carina Blomström-Lundqvist
Journal of cardiovascular electrophysiology - 2021 -
FDA Safety Warning on the Cardiac Effects of Lamotrigine: An Advisory From the Ad Hoc ILAE/AES Task
Force.
Jacqueline A French, Emilio Perucca, Josemir W Sander, Lennart Bergfeldt, Michel Baulac, David S Auerbach, Mark Keezer, Roland D Thijs, Orrin Devinsky, David G Vossler, Timothy E Welty
Epilepsy currents - 2021 -
New-Onset Atrial Fibrillation After Coronary Artery Bypass Grafting and Long-Term Outcome: A Population-Based Nationwide Study From the SWEDEHEART
Registry.
Amar Taha, Susanne Nielsen, Lennart Bergfeldt, Anders Ahlsson, Leif Friberg, Staffan Björck, Stefan Franzén, Anders Jeppsson
Journal of the American Heart Association - 2021 -
QT correction using Bazett's formula remains preferable in long QT syndrome type 1 and
2.
Pia Dahlberg, Ulla-Britt Diamant, Thomas Gilljam, Annika Rydberg, Lennart Bergfeldt
Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc - 2021 -
Modifiable risk factors, symptoms, wellbeing and treatment expectations in patients with atrial
fibrillation
Maria Lachonius, Charlotte Widell, Lennart Bergfeldt, Annika Odell
British Journal of Community Nursing - 2021 -
Adaptation of ventricular repolarization duration and dispersion during changes in heart rate induced by atrial
stimulation.
Karl-Jonas Axelsson, Adam Brännlund, Lennart Gransberg, Gunilla Lundahl, Farzad Vahedi, Lennart Bergfeldt
Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc - 2020 -
Spatial peak and mean QRS-T angles: A comparison of similar but different emerging risk factors for cardiac
death.
Lennart Bergfeldt, Gabriel Bergqvist, Markus Lingman, Gunilla Lundahl, Göran Bergström, Lennart Gransberg
Journal of electrocardiology - 2020 -
Automatic identification of a stable QRST complex for non-invasive evaluation of human cardiac
electrophysiology.
Gunilla Lundahl, Lennart Gransberg, Gabriel Bergqvist, Göran Bergström, Lennart Bergfeldt
PloS one - 2020 -
Out-of-hospital cardiac arrest: Causes according to autopsy and electrocardiography - Analysis of 781 patients with neither hospital care nor prescribed medication during the preceding two
years.
Christina M Holmgren, N J Abdon, Lennart Bergfeldt, N Edvardsson, J Herlitz, Thomas Karlsson, B Nyström, B Åstrand
Resuscitation - 2020 -
Wide QRS-T angles are associated with markers of increased inflammatory activity independently of hypertension and
diabetes.
Mikael Sandstedt, Lennart Bergfeldt, Joakim Sandstedt, Annika Lundqvist, Emanuel Fryk, Per-Anders Jansson, Göran Bergström, Lillemor Mattsson Hultén
Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc - 2020 -
Exercise-based cardiac rehabilitation improves physical fitness in patients with permanent atrial fibrillation - A randomized controlled
study
Maria Borland, Lennart Bergfeldt, Lena Margareta Nordeman, Entela Bollano, L. Andersson, A. Rosenkvist, M. Jakobsson, K. Olsson, M. Corin, L. Landh, Bente Grüner Sveälv, M. S. Tang, J. P. Wigh, A. Lundwall, Åsa Cider
Translational Sports Medicine - 2020 -
Drug use and torsades de pointes cardiac arrhythmias in Sweden: a nationwide register-based cohort
study
B. Danielsson, J. Collin, A. Nyman, A. Bergendal, N. Borg, M. State, Lennart Bergfeldt, J. Fastbom
BMJ Open - 2020 -
Galectin-1 is inversely associated with type 2 diabetes independently of obesity – A SCAPIS pilot
study.
Emanuel Fryk, Lena Strindberg, Annika Lundqvist, Mikael Sandstedt, Lennart Bergfeldt, Lillemor Mattsson Hultén, Göran Bergström, Per-Anders Jansson
Metabolism Open - 2019 -
Safety and efficacy of dronedarone from clinical trials to real-world evidence: implications for its use in atrial
fibrillation.
Boriani G, Blomström-Lundqvist C, Hohnloser SH, Lennart Bergfeldt, Botto GL, Capucci A, Lozano IF, Goette A, Israel CW, Merino JL, Caamm AJ
Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology - 2019 -
Idiopathic ventricular fibrillation - Long term prognosis in relation to clinical findings and ECG patterns in a Swedish
cohort.
Chaudhry U, Platonov PG, Aigars Rubulis, Lennart Bergfeldt, Jensen SM, Lundin SM, Borgquist R
Journal of electrocardiology - 2019 -
Effect of Catheter Ablation vs Antiarrhythmic Medication on Quality of Life in Patients With Atrial Fibrillation: The CAPTAF Randomized Clinical
Trial.
Carina Blomström-Lundqvist, Sigfus Gizurarson, Jonas Schwieler, Steen M Jensen, Lennart Bergfeldt, Göran Kennebäck, Aigars Rubulis, Helena Malmborg, Pekka Raatikainen, Stefan Lönnerholm, Niklas Höglund, David Mörtsell
JAMA - 2019 -
Cardiac conduction disturbances in patients with ankylosing spondylitis: results from a 5-year follow-up cohort
study.
Karin Bengtsson, Eva Klingberg, Anna Deminger, Hanna Wallberg, Lennart T. H. Jacobsson, Lennart Bergfeldt, Helena Forsblad d'Elia
RMD open - 2019 -
Hjärtats arbetsminne har trolig koppling till långt
QT-syndrom
Karl-Jonas Axelsson, Pia Dahlberg, Lennart Bergfeldt
Läkartidningen - 2019 -
Performance and cardiac evaluation before and after a 3-week training camp for 400-meter sprinters - An observational, non-randomized
study.
Michael Skalenius, Pia Dahlberg, Lennart Bergfeldt, Annica Ravn-Fischer
PloS one - 2019 -
Ventricular repolarization duration and dispersion adaptation after atropine induced rapid heart rate increase in healthy
adults.
Lennart Bergfeldt, Gunilla Lundahl, Gabriel Bergqvist, Farzad Vahedi, Lennart Gransberg
Journal of electrocardiology - 2017 -
Defibrillation before EMS arrival in western
Sweden.
Lennart Bergfeldt, C Axelsson, A Bremer
The American journal of emergency medicine - 2017 -
Value of the QRS-T area angle in improving the prediction of sudden cardiac death after acute coronary
syndromes.
Markus Lingman, Marianne Hartford, Thomas Karlsson, Johan Herlitz, Aigars Rubulis, Kenneth Caidahl, Lennart Bergfeldt
International journal of cardiology - 2016 -
Repolarization variability - Friend or
foe?
Lennart Bergfeldt
Journal of electrocardiology - 2016
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