Lennart Bergfeldt

• 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• Galectin-1 is inversely associated with type 2 diabetes independently of obesity – A SCAPIS pilot study. Metabolism Open, Volume 4, December 2019,

  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
• Early repolarization in ECG. Definition, prevalence and prognostic significance

  Per Aagaard, J. Sydow, M. Börjesson, Lennart Bergfeldt, F. Braunschweig
  Läkartidningen - 2015
• Tidig repolarisation på EKG - Definitioner, prevalens och prognostisk betydelse.

  Philip Aagaard, Julia Sydow, Mats Börjesson, Lennart Bergfeldt, Frieder Braunschweig
  Läkartidningen - 2015
• Aortic Regurgitation Is Common in Ankylosing Spondylitis: Time for Routine Echocardiography Evaluation?

  Eva Klingberg, Bente Grüner Sveälv, Margareta Scharin Täng, Odd Bech-Hanssen, Helena Forsblad d'Elia, Lennart Bergfeldt
  Journal of the American Medical Association - 2015
• Prevalence of diastolic dysfunction in patients with ankylosing spondylitis: a cross-sectional study.

  Bente Grüner Sveälv, Margareta Scharin Täng, Eva Klingberg, Helena Forsblad d'Elia, Lennart Bergfeldt
  Scandinavian journal of rheumatology - 2015
• Cardiac memory: The slippery slope twixt normalcy and pathology.

  Michael R Rosen, Lennart Bergfeldt
  Trends in cardiovascular medicine - 2015
• Atrial fibrillation in patients admitted to coronary care units in western Sweden - focus on obesity and lipotoxicity.

  Sigfus Gizurarson, Marcus Ståhlman, Anders Jeppsson, Yangzhen Shao, Björn Redfors, Lennart Bergfeldt, Jan Borén, Elmir Omerovic
  Journal of electrocardiology - 2015

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