The occurrence of heart failure after myocardial necrosis is directly related to the location, area and degree of myocardial necrosis, and whether it is timely and effective revascularization, etc. Necrosis in key areas of the heart can lead to heart failure even if the area is small. If myocardial necrosis is in the anterior wall of the left ventricle of the heart, it may directly reduce the ejection fraction of the heart, affecting the pumping function of the heart, and the symptoms of acute left heart failure will occur. Heart failure can be induced by extensive acute myocardial necrosis, but it is not absolute, and it may not necessarily be triggered by aggressive treatment such as thrombolysis or stent implantation within a short period of time. Prompt medical attention is recommended in case of heart failure.