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The left atrial appendage is a pouch-like structure located in the upper part of the left atrium. [1] Left atrial appendage occlusion (LAAO) is an alternative therapy to oral anticoagulation in a certain subset of patients with atrial fibrillation. Atrial fibrillation is characterized by an irregular and uncoordinated pumping function of the atria.
Atrial fibrillation is associated with an increased risk of heart failure, dementia, and stroke. [3] [12] It is a type of supraventricular tachycardia. [14] Atrial fibrillation frequently results from bursts of tachycardia that originate in muscle bundles extending from the atrium to the pulmonary veins. [15]
Left atrial enlargement can be mild, moderate or severe depending on the extent of the underlying condition. Although other factors may contribute, left atrium size has been found to be a predictor of mortality due to both cardiovascular issues as well as all-cause mortality.
Atrial fibrillation (A-fib). An irregular and often very fast heart rate. ... Hypertrophic cardiomyopathy develops when the walls of your left ventricle become thicker than normal.
Did you get Afib for Christmas? Cases of atrial fibrillation, the most common form of a heart arrhythmia, tick up during the holiday season. The American Heart Association and the American College ...
The heart has four chambers, two upper chambers—the right and left atrium, and two lower chambers—the right and left ventricles. Fibrillation describes when the muscle fibers are all contracting at different times, so the end result is this quivering, or twitching movement.
Atrial fibrillation, or AFib, is a quivering or irregular heartbeat (arrhythmia) that can lead to blood clots, stroke, heart failure and other heart-related complications, according to the ...
The Ligament of Marshall (LoM) is a complex of muscle bundles, blood vessels, adipose tissue, fibrous structure, ganglia, and nerves between the left atrial appendage and the left superior pulmonary vein. [1] [2] The LoM consists of the Vein of Marshall (VoM), a band of muscle called to Marshall Bundle (MB), and the epicardial ganglionated ...
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