论文部分内容阅读
无创伤性心脏功能监测近年来有了许多进展,其中尤以核同位素的心脏扫描及心肌的门电路电子扫描发展迅速,已为临床工作者提供了不少可靠的数据,而数字减影心血管造影的发展更为精细的观察心脏功能及其结构关系方面作出不少成绩。心脏功能包括:心肌的电生理功能和机械功能两大类别。本文重点在于对心脏的机械功能即泵功能方面的监测提出近年来的进展,以供参考。心脏是人体的动力系统,恰如一个“泵”。心脏泵功能的相对稳定有赖于以下因素: 1.前负荷:心脏在收缩前所承受的负荷简称之为前负荷,在完整的心脏中,心肌的初
In recent years, there have been many advances in the monitoring of noninvasive cardiac function. Especially, cardiac nuclear scanning with nuclear isotopes and fast electronic scanning of the gate circuit of the myocardium have provided a lot of reliable data for clinicians. Digital subtraction cardiovascular The development of contrast more careful observation of cardiac function and structure of the relationship made many achievements. Cardiac function include: myocardial electrophysiological function and mechanical function of two categories. This article focuses on the mechanical function of the heart that is monitoring the pump function made in recent years, for reference. The heart is the body’s dynamic system, just as a “pump.” The relative stability of cardiac pump function depends on the following factors: 1. Pre-load: the heart before contraction in the load is referred to as pre-load, in the intact heart, the early