以下为句子列表：
英文: Left ventricular ejection fraction (LVEF) was reported in two thirds of the group, among whom half had preserved systolic function, defined LVEF≥45%.
中文: 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。
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英文: Left ventricular end-diastolic pressure is a predictor of ortality in cardiac surgery independently of left ventricular ejection fraction.
中文: 左室舒张末压是心脏手术患者死亡率的一个预测因素，它不依赖于左室射血分数。
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英文: This finding applied to patients irrespective of their left ventricular ejection fraction, a common measure of ventricular function.
中文: 这一发现与患者的左心室射血分数——衡量左心室功能的一项参数——无关。
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