Left Atrial Function

  • Aliakbar Arvandi Texas Tech Health Science Center
Keywords: Left atrium, left atrial function, left atrial size, left atrial strain, speckle tracking, atrial fibrillation, pulmonary veins

Abstract

The left atrium (LA) is a left posterior cardiac chamber which is located adjacent to the esophagus. It is separated from the right atrium by the inter-atrial septum and connected to the left ventricle by the mitral valve apparatus. Left and right pulmonary veins carry oxygenated blood to the LA during the cardiac cycle. During ventricular systole, the LA functions mainly as a receiving chamber while during diastole after the opening of the mitral valve it empties the blood into the left ventricle. Healthy LA function is crucial to maintain normal diastolic and systolic function, and it changes in a variety of disease states, including hypertension and coronary artery disease. Left atrial size and function can be evaluated by multimodality imaging, including echocardiography, cardiac computed tomography, and cardiac magnetic resonance imaging, and are important prognostic factors in some cardiovascular diseases.

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Author Biography

Aliakbar Arvandi, Texas Tech Health Science Center

Associate Professor

Texas Tech Health Science University

Department of Cardiology

 

References

Eshoo S, Ross DL, Thomas L. Impact of mild hypertension on left atrial size and function. Circ Cardiovasc Imaging 2009; 2:93-9. doi:10.1161/CIRCIMAGING.115.004010

Shin MS, Fukuda S, Song JM, et al. Relationship between left atrial and left ventricular function in hypertrophic cardiomyopathy: a real-time 3-dimensional echocardiographic study. J Am Soc Echocardiogr 2006; 19:796–801.

Helms AS, West JJ, Patel A, et al. Relation of left atrial volume from three-dimensional computed tomography to atrial fibrillation recurrence following ablation. Am J Cardiol 2009; 103:989 –93.

Wen Z, Zhang Z, Yu W, Fan Z, Du J, Lv B. Assessing the left atrial phasic volume and function with dual-source CT: comparison with 3T MRI. Int J Cardiovasc Imaging 2010; 26 Suppl 1:83–92.

Wolf F, Ourednicek P, Loewe C, et al. Evaluation of left atrial function by multidetector computed tomography before left atrial radiofrequency catheter ablation: comparison of a manual and automated 3D volume segmentation method. Eur J Radiol 2010; 75:e141– 6.

Anwar AM, Geleijnse ML, Soliman OI, Nemes A, ten Cate FJ. Left atrial Frank-Starling law assessed by real time, three-dimensional echocardiographic left atrial volume changes. Heart 2007; 93:1393–7

Tsang TS, Barnes ME, Gersh BJ, Bailey KR, Seward JB. Left atrial volume as a morphophysiologic expression of left ventricular diastolic dysfunction and relation to cardiovascular risk burden. Am J Cardiol 2002; 90:1284-9.

Thomas JD, Popovic ZB. Assessment of left ventricular function by cardiac ultrasound. J Am Coll Cardiol 2006; 48:2012–25.

Saraiva RM, Demirkol S, Buakhamsri A, et al. Left atrial strain measured by two-dimensional speckle tracking represents a new tool to evaluate left atrial function. J Am Soc Echocardiogr 2010; 23:172– 80.

Published
2017-01-16
How to Cite
Arvandi, A. (2017). Left Atrial Function. The Southwest Respiratory and Critical Care Chronicles, 5(17), 42-46. Retrieved from https://pulmonarychronicles.com/index.php/pulmonarychronicles/article/view/361