Bayes Syndrome and Imaging Techniques

• Published in: Current cardiology reviews Vol. 13; no. 4; pp. 263 - 273
• Main Authors: Ivan Hernandez-Betancor, Maria Manuela Izquierdo-Gomez, Javier Garcia-Niebla, Ignacio Laynez-Cerdena, Martin Jesus Garcia-Gonzalez, A. Barragan-Acea, Jose Luis Irribarren- Sarria, Juan Jose Jimenez-Rivera, Juan Lacalzada-Almeida
• Format: Journal Article
• Language: English
• Published: United Arab Emirates Bentham Science Publishers Ltd 01.11.2017; Benham Science Publishers; Bentham Science Publishers
• Subjects: Arrhythmia; Bayesian analysis; Cardiac arrhythmia; Cerebrovascular system; Conduction; EKG; Electrical conduction; Fibrillation; Heart diseases; Imaging techniques; Magnetic resonance imaging; Prolongation; Substrates; Bachmann region; atrial fibrillation; interatrial block; speckletracking echocardiography; interatrial conduction delay; echocardiography; atrial fibrosis; atrial remodeling; Bayes syndrome; cardiac magnetic resonance
• ISSN: 1573-403X; 1875-6557
• DOI: 10.2174/1573403X13666170713122600

Background: Interatrial block (IAB) is due to disruption in the Bachmann region (BR). According to whether interatrial electrical conduction is delayed or completely blocked through the BR, it can be classified as IAB of first, second or third degree. On the surface electrocardiogram, a P wave ≥ 120 ms (partial IAB) is observed or associated to the prolongation of the P wave with a biphasic (positive / negative) morphology in the inferior leads (advanced IAB). Bayes syndrome is defined as an advanced IAB associated with atrial arrhythmia, more specifically atrial fibrillation. Objective and Conclusion: The purpose of this review is to describe the latest evidence about an entity considered an anatomical and electrical substrate with its own name, which may be a predictor of supraventricular arrhythmia and cardioembolic cerebrovascular accidents, as well as the role of new imaging techniques, such as echocardiographic strain and cardiac magnetic resonance imaging, in characterizing atrial alterations associated with this syndrome and generally in the study of anatomy and atrial function.