Posterior Left Atrium
Posterior Left Atrium - Related Videos
08:17
Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
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Cited by 8 •
2017
The following protocol describes the methodology for the acquisition and analysis of echocardiographic images used to obtain the Left Atrial Volume (LAV), Aorta (Ao) diameter, and Pulmonary Artery (PA) diameter in mice. This technique is a non-invasive, non-terminal procedure that allows assessment of the cardiopulmonary function.
04:29
Three-Dimensional Modeling of the Left Atrium and Pulmonary Veins with a Precise Intracardiac Echocardiography Approach
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2023
Accurate intracardiac echocardiography (ICE) shows significant accuracy in estimating the left atrial structure, a prospective and promising cardiac structure estimation method. Here we propose a protocol for three-dimensional modeling of the left atrium and pulmonary veins with ICE and fast anatomical mapping (FAM) catheter remodeling.
07:39
Use of a Percutaneous Ventricular Assist Device/Left Atrium to Femoral Artery Bypass System for Cardiogenic Shock
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Cited by 1 •
2021
The following article describes the stepwise procedure for placement of a device (e.g., Tandemheart) in cardiogenic shock (CS) that is a percutaneous left ventricular assist device (pLVAD) and a left atrial to femoral artery bypass (LAFAB) system that bypasses and supports the left ventricle (LV) in CS.
07:28
Donor Posterior Atrial Flap Rotation for Left Atrial Cuff Reconstruction in Lung Transplantation
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2024
This protocol describes a new method for effectively reconstructing donor atrial cuff anterior wall defects during lung transplantation through the rotation of the donor posterior atrial flap.
23:33
The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
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Cited by 49 •
2012
The accompanying video describes a procedure for percutaneous placement of the WATCHMAN Left Atrial Appendage (LAA) Device. The WATCHMAN is a nitinol device designed to be permanently implanted at, or slightly distal to, the opening of the left atrial appendage (LAA) to trap blood clots before they exit the LAA, preventing thromboembolic stroke.
FAQs
Electrical activity around the pulmonary vein openings can influence the rhythm of the atrium because these sites are electrically relevant to atrial activation. This relationship helps explain why the posterior left atrium receives attention when clinicians evaluate atrial fibrillation. The region’s anatomy therefore has functional importance beyond its role in receiving blood from the pulmonary veins.
Atrial enlargement and fibrosis represent structural changes that may alter the tissue environment of the posterior left atrium. These changes can affect how electrical activity relates to atrial tissue and may contribute to atrial fibrillation. Recognizing this connection helps clinicians interpret structural findings as part of the broader relationship between cardiac anatomy and abnormal atrial rhythm.
Its close relationship to the esophagus makes the posterior left atrium an important anatomical consideration during catheter ablation. Procedures in this region require awareness of nearby structures while clinicians address electrical activity associated with atrial rhythm. The same proximity that matters anatomically therefore also influences procedural planning and the assessment of treatment-related considerations.
Echocardiography, cardiac computed tomography, and magnetic resonance imaging can be used to assess the posterior left atrium. These modalities provide ways to examine the region when structural changes, pulmonary vein openings, or procedural anatomy are clinically relevant. Imaging assessment can support evaluation of atrial enlargement, fibrosis, and the anatomical relationship between the atrium and esophagus.
Imaging can help characterize the posterior left atrium and its surrounding anatomy before clinicians consider a catheter ablation procedure. Echocardiography, cardiac computed tomography, and magnetic resonance imaging are identified as tools for assessing this region. Their use is relevant when clinicians need structural information about the atrium, pulmonary vein openings, or nearby esophageal position.
Clinicians may consider both structural and electrical features of the posterior left atrium when evaluating atrial fibrillation. Structural findings can include atrial enlargement or fibrosis, while electrical activity near the pulmonary vein openings may influence atrial rhythm. Combining these observations with imaging assessment helps place the rhythm disorder in an anatomical and cardiac context.