心肌梗塞(MI)对心功能的影响早在半个世纪前即为人们所注意。由于近年来对心律失常的监护、防治手段显著提高,死于心律失常的MI患者明显减少,而MI后泵衰竭的发生率仍较高,且治疗效果仍然很不理想,因此,泵衰竭已成为MI住院病人的主要死亡原因和急待解决的重要课题。此外,随着临床血液动力学监护日益广泛开展,需要对MI后心功能改变的规律和病理生理机制有更 The impact of myocardial infarction (MI) on cardiac function was noticed half a century ago. Due to the monitoring of arrhythmia in recent years, the means of prevention and treatment have been significantly improved, MI patients died of arrhythmia significantly reduced, and the incidence of pump failure after MI is still high, and the treatment effect is still not ideal, therefore, pump failure has become MI inpatient causes of death and an important issue to be solved urgently. In addition, as clinical hemodynamic monitoring is increasingly widespread, there is a need for more evidence of changes in cardiac function and pathophysiological mechanisms after MI