However, there is no clear definition of what constitutes a life-sustaining therapy.

然而，对维持生命的治疗的组成目前还没有清楚的界定。

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Halpern explains, "Informed patients with decision-making capacity have well-established rights to forgo any and all forms of life-sustaining therapy."

Halpern解释说，“有决策能力的知情患者有权利放弃任何及所有的维持生命的治疗。”

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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.

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