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Related Concept Videos

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Aortic Regurgitation III: Medical Management

Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
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Related Experiment Video

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Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
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Left atrial function and remodelling in aortic stenosis.

Kim O'Connor1, Julien Magne, Monica Rosca

  • 1Department of Cardiology, University Hospital, University of Liège, CHU Sart Tilman, Liège, Belgium.

European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology
|April 12, 2011
PubMed
Summary
This summary is machine-generated.

In patients with aortic stenosis (AS), left atrial (LA) size changes do not correlate with LA function. Increased LA volume does not always indicate intrinsic LA dysfunction.

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Area of Science:

  • Cardiology
  • Cardiac Imaging
  • Aortic Stenosis

Background:

  • Aortic stenosis (AS) is a significant valvular heart disease.
  • Left atrial (LA) remodeling is common in AS.
  • Understanding the relationship between LA structure and function is crucial.

Purpose of the Study:

  • To investigate the correlation between left atrial (LA) volume and LA function in patients with severe AS.
  • To assess LA function using strain rate imaging.

Main Methods:

  • Sixty-four patients with severe AS and 20 healthy controls were included.
  • Phasic LA volumes and tissue Doppler-derived strain were measured.
  • Multivariable analysis was used to assess associations.

Main Results:

  • Patients with AS showed reduced strain-derived LA function parameters compared to controls.
  • Indexed LA passive volume was increased, and LA active fraction was decreased in AS patients.
  • LA volume-derived function parameters poorly correlated with LA strain parameters in AS.

Conclusions:

  • LA function changes do not parallel LA size changes in AS.
  • Increased LA volume in AS does not necessarily imply intrinsic LA dysfunction.