Left ventricular ejection fraction (LVEF) was reported in two thirds of the group, among whom half had preserved systolic function, defined LVEF≥45%.
Left ventricular ejection fraction (LVEF) was reported in two thirds of the group, among whom half had preserved systolic function, defined LVEF≥45%.
本组患者中三分之二的人左心室射学分数（LVEF）≥45%，其中半数的患者拥有储备收缩功能。