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近年来,随着心衰病理生理的发展及血液动力学研究的不断深入,以血管扩张剂治疗心衰的方法弥补了强心、利尿剂的不足,取得了较好疗效。现就血管扩张剂在心力衰竭中的应用作一综述。一、血管扩张剂治疗心衰的机理心脏机能是由心脏的前负荷、后负荷、心肌收缩力、心率、心室收缩的协调性及心脏结构的完整性等因素决定的,其中任何一种因素的改变都可引起心脏机能的变化,最后导致心力衰竭。前负荷是指心脏收缩前所
In recent years, with the development of pathophysiology of heart failure and the deepening of hemodynamic studies, the treatment of heart failure with vasodilators has made up for the lack of cardiotomy and diuretics and achieved good results. Now on the application of vasodilators in heart failure are reviewed. First, the mechanism of vasodilator treatment of heart failure Heart function is determined by the heart’s preload, afterload, myocardial contractility, heart rate, systolic ventricular systolic and cardiac structural integrity and other factors, any one of the factors Changes can cause changes in heart function, and ultimately lead to heart failure. Before the load refers to before the contraction of the heart