Interatrial Block and Supraventricular Arrhythmias - Cardiology eBooks from Cardiotext Publishing

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Interatrial Block and Supraventricular Arrhythmias

Clinical Implications of Bayés’ Syndrome
Edited by  Adrian Baranchuk, MD
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Format : e-books
No of pages : 216
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Book Description

Bayés’ syndrome refers to the association between interatrial block and supraventricular arrhythmias—mainly the occurrence of atrial fibrillation. It is also a risk factor for cardio-embolic stroke. Rapid recognition by analyzing characteristic patterns in the surface ECG will help the physician to closely monitor the patient for atrial fibrillation and decide on anticoagulation therapy if the clinical risk of stroke is increased.

Interatrial blocks were described several decades ago; however, they are  now gaining the attention of the medical community as a means of helping to identify patients at high risk of developing atrial fibrillation and/or cardio-embolic stroke.

I welcome all readers to navigate this book and to become familiar with this concept that is helping to renovate our models of predicting atrial fibrillation and stroke.

Adrian Baranchuk, MD, FACC, FRCPC, FCCS
   Professor of Medicine (Tenure)
   Head, Heart Rhythm Service
   Queen's University
   Kingston, Ontario, Canada

Doody Review

Ahmet Afsin Oktay, MD(Ochsner Clinic Foundation)


This book provides a comprehensive, evidence-based, and clinically oriented
insight into interatrial blocks.


The purpose is to provide broad knowledge and practical insights about all
aspects of interatrial block and its relationship with cardiac and noncardiac
comorbidities. This book fulfills its purpose.


It is appropriate for general cardiologists, electrophysiologists, and
researchers who focus on cardiac rhythm disorders. This book will also be
useful for cardiology fellows who would like to gain in-depth knowledge on
interatrial blocks and Bayes' syndrome. Antoni Bayes de Luna, a world renowned
expert on clinical electrocardiography, is one of the contributing authors.


The book begins with chapters on the normal atrial electrical activity and
interatrial conduction system, and the historical background of research on
interatrial blocks. It then covers the pathophysiology, epidemiology, and
diagnosis of interatrial blocks. The relationship between interatrial blocks,
supraventricular tachycardias, and other cardiac and noncardiac conditions is
discussed in detail. The last chapters of the book focus on the concepts of
atrial resynchronization and future perspectives on the treatment of
interatrial block.


Clinical research (mainly stimulated by Dr. Bayes) has broadened the
understanding of interatrial blocks and its clinical implications. But still,
the knowledge and awareness of interatrial blocks remain limited when compared
to the data on clinical implications and management of atrioventricular or
infranodal blocks. Epidemiological studies now indicate that interatrial blocks
occur more frequently than it was once thought. Supraventricular arrhythmias
commonly occur in the setting of interatrial block, which is now defined as
Bayes' syndrome. Moreover, interatrial block has been associated with
noncardiac comorbidities such as stroke, cognitive impairment, and dementia.
This book, the first on this topic, is a very important contribution to the
field of clinical electrophysiology. Moreover, it will stimulate further research.