Abstract
Aortic Valve Ejection Fraction for Monitoring Heart Contractility in Patients Supported with a Continuous Flow Left Ventricular Assist Device
Highlights
Cardiac contractility is the intrinsic ability of the heart muscle to generate a force for the left ventricle to contract and pump blood into the circulatory system [3, 13, 14, 32]
We introduce a new concept of EF, labeled Aortic Valve Ejection Fraction which provides an accurate measure of only the ability of the heart to pump blood through the aortic valve while the left ventricular assist device (LVAD) is actively running
The standard definition of EF, while an appropriate measure of the contractility of the left ventricle, is not suitable when used for patients with an LVAD because of the continuous unloading of the ventricle by the LVAD
Summary
Viswajith S Vasudevan, Marwan A Simaan2*, Timothy M Maul, Peter D Wearden4 1, 2Department of Electrical and Computer Engineering, University of Central Florida, Orlando, FL USA. Received date: September 04, 2019; Accepted date: October 1, 2019; Publishing date: October 17, 2019
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