Interatrial block can occur in the absence of left atrial enlargement: New experimental model

We present the surface electrocardiogram of an open‐chest anesthetized healthy adult swine after direct application of ice at the transversus sinus of the pericardium where the Bachmann's region is located. Gradual and transient interatrial block (IAB) in the absence of structural atrial diseas...

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Bibliographic Details
Published in:Pacing and clinical electrophysiology 2020-04, Vol.43 (4), p.427-429
Main Authors: Guerra, Jose M., Vilahur, Gemma, Bayés de Luna, Antoni, Cabrera, Jose Angel, Martínez‐Sellés, Manuel, Mendieta, Guiomar, Baranchuk, Adrián, Sánchez‐Quintana, Damián
Format: Article
Language:English
Subjects:
Bachmann's bundle
EKG
electrocardiography
Enlargement
interartrial block
Pericardium
P‐wave
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Summary:We present the surface electrocardiogram of an open‐chest anesthetized healthy adult swine after direct application of ice at the transversus sinus of the pericardium where the Bachmann's region is located. Gradual and transient interatrial block (IAB) in the absence of structural atrial disease is described. This new experimental model demonstrated that IAB is an independent entity from left atrial enlargement.
ISSN:0147-8389
1540-8159
DOI:10.1111/pace.13895