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一、血管扩张剂应用的原则和分类近年来得出的概念是:对正在衰竭的心脏应使用血管扩张剂减轻其负荷,而不是去鞭打它起劲地工作。前负荷,后负荷或两者都是可以减轻的(图1)。后负荷:严格地讲,血管扩张剂治疗的主要目的是减轻主动脉阻抗。可是在考虑血管扩张剂对心衰的作用时,往往将重
First, the application of vasodilator principle and classification In recent years, the concept was derived: the heart is being depleted should use vasodilators to reduce the load, rather than whipping it to work hard. The pre-load, post-load, or both can be reduced (Figure 1). Afterload: Strictly speaking, the main purpose of vasodilator therapy is to reduce aortic impedance. However, in considering the role of vasodilators on heart failure, tend to be heavy