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9 - Left ventricular systolic and diastolic function

from Section 1 - Fundamentals of transesophageal echocardiography

Published online by Cambridge University Press:  10 May 2010

By
Fabio Guarracino
Edited by
Robert Feneck ,
John Kneeshaw  and
Marco Ranucci
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Summary

Ejection fraction (EF) is a well accepted and useful index of quantitative left ventricular (LV) function, but it is influenced by changes in preload, afterload, and contractility. Stroke volume (SV) can be obtained with 2D transesophageal echocardiography (TEE) by measuring LV end-systolic and end-diastolic volumes for measuring EF. TEE evaluation of LV systolic function, both global and regional, provides insight into hemodynamic impairment in a variety of situations. Doppler echocardiography is the principal diagnostic tool to assess LV diastolic function non-invasively. TEE facilitates a complete evaluation of diastolic LV function by assessing diastolic phases and elucidating structural causes of altered diastole. The use of this tool has relevant implications in the management of hemodynamic derangement due to impaired diastolic function, in vasoactive drugs titration, in the detection of myocardial ischemia, and in performing prognostic stratification.

Keywords

American College of CardiologyAmerican Heart Associationecho labtransesophageal echocardiographyEuropean Association of EchocardiographyEuropean Association of Cardiothoracic Anaesthesiologists
Type
Chapter
Information
Core Topics in Transesophageal Echocardiography , pp. 145 - 162
Publisher: Cambridge University Press
Print publication year: 2010

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