Tatiana Kuznetsova

2 weeks ago | jacc.org | Daniel Morris |Chung-Lieh Hung |Tor Biering-Sørensen |Tatiana Kuznetsova

Introduction Two-dimensional (2D) left ventricular (LV) global longitudinal systolic strain (GLS), with the use of 2D transthoracic speckle-tracking echocardiography (STE), is a sensitive parameter for detecting early or subclinical LV systolic dysfunction, even when left ventricular ejection fraction (LVEF) is preserved.1-3 However, some important issues concerning GLS remain uncertain, such as the cutoff of the lower limit of the reference normal range (LLN) of GLS for each ultrasound...