Design, Setting, and patients Multicenter, randomized controlled trial among 2331 medically stable outpatients with heart failure with left ventricular ejection fraction of 35% or less.

试验设计、设定与病人多中心随机对照试验，2331名医学上稳定的门诊心衰患者，左心室射血分数小于等于35%。

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Objective To report an acute ischemic left ventricular heart failure model of safe, simple, relatively steady, and reproducible in sheep.

目的建立简易可靠、相对稳定、重复性好的绵羊急性缺血性左心衰竭模型。

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Objective to investigate the application of pulsed-wave Doppler tissue imaging (PW-DTI) in evaluating left ventricular systolic and diastolic function in patients with chronic heart failure (CHF).

目的：探讨脉冲多普勒组织成像(PW DTI)技术在评价慢性心力衰竭(CHF)左室舒缩功能方面的应用。

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These left-ventricular leads are intended to improve the efficiency of the heart in patients with heart failure, but are not responsible for delivering immediate life-sustaining pacing or life-saving defibrillation therapy.

FORBES: St Jude Withdraws Older LV CRT Leads From Market