Assessment of Left Ventricular Function by Global Longitudinal Strain in Patients with non-ST Elevation Myocardial Infarction:

Abstract

Background: Left ventricular ejection fraction (LVEF) is a strong prognostic parameter in patients with heart disease. The assessment of global longitudinal strain (GLS) from speckle-tracking analysis of 2-dimensional echocardiography has become a clinically feasible alternative to LVEF for the measurement of myocardial function. Objective: The aim of the current work was to compare between GLS speckle tracking echocardiography and Simpson's biplane methods for assessment of left ventricular function in non-STEMI patients. Patients and methods: This study was carried out in Cardiology Department, Faculty of Medicine, Zagazig University on 44 non-ST-elevation myocardial infarction (NSTEMI) patients scheduled for assessment of Left ventricular function by GLS and biplane Simpson method. Result: Mean systolic blood pressure was 122.05±18.37 mmHg. No statistically significant difference in systolic blood pressure was found across GLS groups (P= 0.17). Mean diastolic blood pressure was 73.41±12.00 mmHg. No statistically significant difference in diastolic blood pressure was found across GLS groups (P= 0.35). Mean heart rate was 68.84±7.13 bpm, and a statistically significant difference was found in heart rate across GLS groups (P= 0.039). Conclusion:It could be concluded that GLS speckle tracking echocardiography and Simpson's biplane methods can be used as alternative different parameters for assessment of left ventricular function in non-STEMI patients.

Evaluation of ejection fraction in patients with Acute Myocardial Infarction in Mosul City, Iraq

“…The results of our study agree to some extent with many studies conducted to assess ejection fraction in patients, including patients with myocardial infarction [11][12][13] . Another study conducted by ( 14) to evaluate EF in patients with heart failure revealed that the elderly patients have preserved EF HFpEF, while the el-derly patients in our study have a midrange EF type HFmrEF.…”

“…If the ejection fraction of the left ventricle of the heart is 40% and <50%, it is considered heart failure with mid-range ejection fraction (HFmrEF), but if the is LVEF ≤ 50%, it is considered a preserved ejection fraction HFpEF 11 . so far, at present it remains ejection fraction EF is the first measure for diagnosing heart failure HF, one of the most common causes of which is a weakness or defect in the left ventricular muscle of the heart, which often occurs in patients with acute myocardial infarction 12,15 . HF and liver disease are among the most common mortality causes worldwide 16 .…”

Study of Global Longitudinal Strain And N-Terminal Pro Brain Natriuretic Peptide as Predictors of Outcome in Acute St-Segment Elevation Myocardial Infarction Patients Undergoing Primary Percutaneous Coronary Interventions

“…One of the primary causes of mortality worldwide is AMI though the use of early PPCI is growing and has greatly reduced mortality [19]. The evaluation of GLS, which depicts the function of longitudinally oriented cardiac fibers within the subendocardium and is particularly susceptible to ischemia, has received the majority of attention [4,5)]. According to recent studies, GLS has been linked to regional cardiac function recovery and in-hospital outcomes in patients with AMI [20.21].…”

“…However, the LVEF is both preload and afterload dependent, with substantial interobserver variability. Two-dimensional speckle tracking echocardiography (2D-STE) is a B-mode based approach that can assess regional myocardial deformation through measuring of global longitudinal strain (GLS), which has been shown to be less affected by loading conditions [3][4][5][6][7]. recent studies reported that myocardial deformation imaging by 2D-STE after acute myocardial infarction (AMI) predicts cardiovascular outcomes such as new onset heart failure (HF) and cardiovascular death [8,9].…”