Related Experiment Videos
Left atrial size: physiologic determinants and clinical applications.
Walter P Abhayaratna1, James B Seward, Christopher P Appleton
1Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA.
Journal of the American College of Cardiology
|June 20, 2006
Summary
Left atrial enlargement, a marker of heart disease, predicts cardiovascular events. Its size reflects underlying pathophysiologic processes, not just age or gender.
Area of Science:
- Cardiology
- Cardiovascular Imaging
- Cardiac Physiology
Background:
- Left atrial (LA) enlargement is linked to diastolic dysfunction and cardiovascular outcomes.
- Age and gender do not independently cause LA enlargement; it signifies pathological remodeling.
- LA size is a critical indicator in cardiovascular risk assessment.
Purpose of the Study:
- To review normal left atrial size and function.
- To outline clinical evaluation methods and pitfalls for LA size assessment.
- To discuss determinants of LA remodeling and prognostic implications.
Main Methods:
- Review of existing literature on left atrial size and function.
- Discussion of echocardiographic techniques for LA assessment.
- Analysis of factors influencing LA size and remodeling.
Main Results:
- LA enlargement is a marker of pathophysiologic processes, not solely aging or sex differences.
- Echocardiography is key for evaluating LA size and function.
- LA size has prognostic value for cardiovascular outcomes.
Conclusions:
- Left atrial size is a significant predictor of cardiovascular events.
- Further research is needed on LA remodeling, therapeutic modification, and outcome translation.
- LA volume assessment is an evolving tool for cardiovascular risk stratification.