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Full-Text Articles in Cardiovascular Diseases
Validation Of Noninvasive Measures Of Left Ventricular Mechanics In Children: A Simultaneous Echocardiographic And Conductance Catheterization Study., Shahryar M. Chowdhury, Ryan J. Butts, Carolyn L. Taylor, Varsha M. Bandisode, Karen S. Chessa, Anthony M. Hlavacek, Girish S. Shirali, G Hamilton Baker
Validation Of Noninvasive Measures Of Left Ventricular Mechanics In Children: A Simultaneous Echocardiographic And Conductance Catheterization Study., Shahryar M. Chowdhury, Ryan J. Butts, Carolyn L. Taylor, Varsha M. Bandisode, Karen S. Chessa, Anthony M. Hlavacek, Girish S. Shirali, G Hamilton Baker
Manuscripts, Articles, Book Chapters and Other Papers
BACKGROUND: The accuracy of echocardiography in evaluating left ventricular contractility has not been validated in children. The objective of this study was to compare echocardiographic measures of contractility with those derived from pressure-volume loop (PVL) analysis in children.
METHODS: Patients with relatively normal loading conditions undergoing routine left heart catheterization were prospectively enrolled. PVLs were obtained via conductance catheters. The gold-standard measure of contractility, end-systolic elastance (Ees), was obtained via balloon occlusion of one or both vena cavae. Echocardiograms were performed immediately after PVL analysis under the same anesthetic conditions. Single-beat estimations of echocardiographic Ees were calculated using four different …
Echocardiographic Predictors Of Admission Among Patients With Heart Failure With Reduced Ejection Fraction, Chi C. Cho, Yang Shi, Robyn Shearer, Nasir Z. Sulemanjee, Dianne L. Zwicke, T. Edward Hastings, Omar M. Cheema, Vinay Thohan
Echocardiographic Predictors Of Admission Among Patients With Heart Failure With Reduced Ejection Fraction, Chi C. Cho, Yang Shi, Robyn Shearer, Nasir Z. Sulemanjee, Dianne L. Zwicke, T. Edward Hastings, Omar M. Cheema, Vinay Thohan
Omar M. Cheema, MD, FACC
Background: Congestive heart failure afflicts 5.7 million people in the United States with annual incidence of 600,000 and mortality of 280,000. Heart failure accounts for greater than 1 million hospitalizations annually and the single largest inpatient Medicare expense. As the U.S. population ages and greater emphasis is placed on population health as a means to bend projected health care expenditures, large health care organizations will need to develop algorithms to identify patients at high risk with heart failure and possibly preempt hospitalizations. Doppler echocardiography is routinely performed in clinical assessment of severe heart failure.
Purpose: We sought to determine echocardiographic …