Research Progress on Echocardiographic First-Phase Ejection Fraction in Assessing Early Left Ventricular Systolic Dysfunction

VernacularTitle:超声心动图第一期相射血分数早期评估左室收缩功能障碍的研究进展
Author: Qing YE ¹ ; Zhongzhen SU
Author Information

1. 中山大学附属第五医院超声科,广东珠海 519000
Keywords: first-phase ejection fraction(EF1); ejection fraction; echocardiography; left ventricular systolic dys-function(LVSD); speckle tracking technique
From: Journal of Sun Yat-sen University(Medical Sciences) 2024;45(3):377-382
CountryChina
Language:Chinese
Abstract: First-phase ejection fraction(EF1)is the volume change rate of left ventricle(LV)from end-diastole to the time of peak aortic velocity.This article reviewed the research progress of EF1 in detecting early left ventricular systolic dysfunction(LVSD)of patients with aortic stenosis(AS),stable coronary artery disease(SCAD),Coronavirus Disease 2019(COVID-19)and so on,analyzed the advantages and limitations of EF1 in clinical application,and envisioned the future development of EF1 as a novel predictor of early LVSD in clinical use.