Heart Failure Lab Report

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Evaluation the applicability and usefulness of MPI in predicting the development of heart failure in comparison with other cardiac indices
Abstract
Back ground: The myocardial performance (MPI) is a combined index of systolic and diastolic dysfunction and has been shown to be a predictor of cardiovascular outcome in heart diseases.
Aim: Evaluate the role of MPI in assessment of heart failure in comparison with other echocardiographic parameters. Methods: By M-mode echocardiography, measurement of ejection fraction (EF) and stroke volume (SV) had been done, then measurement of left ventricular mass (LVM) by measurement of left ventricular internal dimension in diastole (LVIDd) and systole (LVIDs), posterior wall thickness in diastole (PWTd), …show more content…
All examinations were performed with the subjects in the standard left lateral position. An experienced physician (B.A.) did both the examination and the reading of the images.
LV dimensions were measured with M-mode. The measurements included LV diameter in end-diastole and end-systole. LV volumes were calculated according to the Teichholz M-mode formula volume=7D3/(2.4+D), D=diameter(13-14), and from that, ejection fraction was calculated (LV end-diastolic volume−LV end-systolic volume)/LV end-diastolic volume. By M-Mode measurement of stroke volume was done also by measuring LVIDd and LVIDs. LVM measurement : LVM was determined by using the M-mode formula of Troy according to the recommendations by the American Society of Echocardiography (ASE)(15). They included left ventricular internal dimension in diastole (LVIDd) and systole (LVIDs), posterior wall thickness in diastole (PWTd), and interventricular septal thickness in diastole (IVSd). Left ventricular mass (LVM) was calculated from the measurements of the left ventricle (LV) using the equation:
LVM (g) = 0.81 [1.04 ( interventricular septal thickness + posterior wall thickness + LV end-diastolic internal dimension)3 – (LV end-diastolic internal dimension)3] +
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