Dear Colleagues,

Amidst the worldwide COVID-19 pandemic, significant progress has been made over the previous years regarding our comprehension of arrhythmia processes and diagnostics, as well as the development of novel therapeutics.

Our knowledge of the risk factors and processes of atrial arrhythmias, as well as the ability to anticipate and treat them, has been enhanced by the application of machine learning and artificial intelligence. Recent advancements in the field of atrial fibrillation ablation have introduced novel technology and techniques, such as pulsed field ablation. Recent randomized trials in atrial fibrillation ablation have provided valuable information regarding rhythm control and long-term results. Significant progress has been made in comprehending the management of inherited disorders, such as catecholaminergic polymorphic ventricular tachycardia. We have acquired understanding regarding the reappearance of ventricular arrhythmias in the context of different illnesses, such as myocarditis and inherited syndromes. Advanced computational methods can be used to forecast the occurrence of ventricular arrhythmias and accurately identify the location of the arrhythmias in order to assist with ablation procedures. Our comprehension of noninvasive radiotherapy has made additional progress.

We have enhanced our comprehension of the role of His bundle pacing and left bundle branch area pacing in order to uphold simultaneous ventricular activation. Significant progress has also been made in the field of defibrillators, cardiac resynchronization therapy, remote monitoring and infection prevention. Moreover, significant progress has been made in comprehending the paths and mechanisms responsible for the development of atrial and ventricular arrhythmias.

In the current Special Issue, we focus on the latest advancements, developments and discoveries in the domain of identifying and managing rhythm disturbances. Furthermore, manuscripts summarizing the current state of knowledge, original articles on arrhythmias related to specific diseases or disciplines, and those highlighting potential gaps in our understanding are also welcome.

Dr. Michael Spartalis
Guest Editor

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• cardiac arrhythmias
• atrial fibrillation
• ventricular arrhythmias
• remote monitoring
• implantable cardioverter–defibrillators
• cardiac resynchronization therapy
• catheter ablation
• channelopathies