Physiological Ventricular Pacing from the Right Side of the Septum by Engaging the Subendocardial Purkinje Network

DOI: 10.19102/icrm.2025.16025

ATUL PRAKASH, MD,¹ IYAD FAROUJI, MD,² and RICHARD SUTTON, MB, BS, DSc³

¹Department of Cardiology, St Mary’s General Hospital, Newark, NJ, USA

²Department of Cardiology, St Michael’s Medical Center, Newark, NJ, USA

³Department of Cardiology, Hammersmith Hospital Campus, National Heart & Lung Institute, Imperial College, London, UK

Using a Novel Pulsed Field Ablation Technique to Identify the Critical Isthmus Within a Tachycardia Circuit

DOI: 10.19102/icrm.2025.16023

JAMES MANNION, MB, BCh, BAO, MRCPI,^1,2 FAIZAN RATHORE, MRCPI, MD,¹ JAKUB DAVID, MSc,^3,4 and JONATHAN LYNE, FESC, FHRS^1,5

¹Electrophysiology Department, Beacon Hospital, Sandyford, Dublin, Ireland

²Cardiology Department, Midlands Regional Hospital Mullingar, Mullingar, Westmeath, Ireland

³Medtronic Ireland, Dublin, Ireland

⁴Technical University of Liberec, Liberec, Czech Republic

⁵School of Medicine, University College Dublin, Belfield, Dublin, Ireland

Brugada Phenocopy due to Hyponatremia: A Case Report and Review of the Literature

DOI: 10.19102/icrm.2025.16026

CHRISTOS S. KONSTANTINOU, MD,¹ DIMITRIOS SFAIROPOULOS, MD,¹ KONSTANTINOS ZEKIOS, MD,¹ KONSTANTINOS P. LETSAS, MD, PhD, FEHRA,² and PANAGIOTIS KORANTZOPOULOS, MD, PhD, FEHRA¹

¹First Department of Cardiology, University of Ioannina Medical School, Ioannina, Greece

²Arrhythmia Unit, Onassis Cardiac Surgery Center, Athens, Greece

Cardiac Contractility Modulation Therapy and Device Algorithm–related Challenges

DOI: 10.19102/icrm.2025.16024

FARMAN ALI, MD,¹ KHURRAM ARSHAD, MD,¹ RABIA LATIF, MD,² FAIZAN MALIK, MBBS,³ AMAN ULLAH, MD,⁴ FNU RAHEELA, MBBS,^4,5 SARITA RAO, NP,¹ and SOHAIL HASSAN, MD¹

¹Department of Cardiology, Corewell Health Dearborn Hospital, Dearborn, MI, USA

²Department of Internal Medicine, McLaren Flint Hospital, Flint, MI, USA

³Department of Internal Medicine, Ameerudin Medical College, Lahore, Pakistan

⁴Department of Internal Medicine, SSM Health, St Louis University Hospital, St. Louis, MO, USA

⁵Department of Internal Medicine, Borgess Medical Center, Kalamazoo, MI, USA

Unveiling Rarity: Giant Septal Coronary Vein Dissection, an Unforeseen Twist in Complications of Left Bundle Branch Area Pacing

DOI: 10.19102/icrm.2025.16022

RONPICHAI CHOKESUWATTANASKUL, MD,^1,2 MONRAVEE TUMKOSIT, MD,³ and KRIT JONGNARANGSIN, MD⁴

¹Department of Medicine, Faculty of Medicine, Cardiac Center, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Thai Red Cross Society, Bangkok, Thailand

²Center of Excellence in Arrhythmia Research Chulalongkorn University, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand

³Department of Radiology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand

⁴Division of Cardiac Electrophysiology, University of Michigan Health Care, Ann Arbor, MI, USA

A Wide QRS Complex Tachycardia with Variation of Ventriculoatrial Interval: What is the Mechanism?

DOI: 10.19102/icrm.2025.16021

ENGIN ALGUL, MD,¹ IDRIZ MEROVCI, MD,² MERYEM KARA, MD,³ ELIF HANDE OZCAN CETIN, MD,³ DUYGU KOCYIGIT BURUNKAYA, MD,³ HAMZA SUNMAN, MD,¹ AHMET KORKMAZ, MD,³ FIRAT OZCAN, MD,³ SERKAN CAY, MD,³ OZCAN OZEKE, MD,³ OZCAN OZDEMIR, MD,¹ DURSUN ARAS, MD,⁴ and SERKAN TOPALOGLU, MD³

¹Department of Cardiology, University of Health Sciences, Ankara Etlik City Hospital, Ankara, Turkey

²Department of Cardiology, University Clinical Center of Kosovo, Prishtina, Kosovo

³Department of Cardiology, University of Health Sciences, Ankara Bilkent City Hospital, Ankara, Turkey

⁴Department of Cardiology, İstanbul Medipol University, İstanbul, Turkey