Left atrial volume indexed to body surface area (LAVi) was also measured with LV functional characteristics such as the systolic ejection fraction and myocardial contraction fraction (MCF). Together, ...

Background: Cardiac remodeling among individuals with heart failure with preserved ejection fraction (HFpEF) and its risk factors is incompletely understood. Non-invasive cardiac imaging can reliably ...

From the Cardiology Branch. National Heart Institute (requests for reprints should be addressed to Dr. Braunwald at the National Heart Institute, Bethesda. Maryland 20014). † Clinical director ...

1E, left and middle). With mechanical contraction inhibited by blebbistatin, this cyclical intensity extinguished, linking the optical scattering change measured by OCT to myocardial contraction (Fig.

It is also known as Lorentz contraction or Lorentz–FitzGerald contraction and is usually only noticeable at a substantial fraction of the speed of light. Length contraction is only in the direction in ...

Amyloidosis is a localized or systemic disease caused by deposition of proteins in the extracellular space of various organs and tissues. As part of the disease, proteins that were originally soluble ...

Electrical dyssynchrony resulting in abnormal ventricular activation and mechanical dyssynchrony resulting in abnormal ventricular contraction during RV pacing can result in adverse ... the most ...

However, despite improvements in ejection fraction with both ... human atrial and ventricular myocardium, OH-free radicals decrease the systolic force of contraction, increase diastolic tension ...