Heart failure due to massive myocardial infarction is treatable but has a high mortality rate. Large myocardial infarction can cause acute left heart failure, which requires urgent treatment. The principle of treating acute left heart failure is to enhance myocardial contractility, diuresis, and vasodilation.
①Enhance myocardial contractility, use medium-dose dobutamine intravenous drip to enhance myocardial contractility, digitalis preparations are prohibited within 24 hours after infarction;
② diuretic, promote fluid excretion, reduce cardiac afterload, such as furosemide, spironolactone, hydrochlorothiazide, right ventricular infarction with caution
(iii) vasodilatation, reduce cardiac afterload, such as sodium nitroprusside, isosorbide nitrate.
In addition, due to large myocardial infarction, patients will be agitated because of pain, can use morphine or pethidine sedation, reduce myocardial oxygen consumption.
Large myocardial infarction is a clinical emergency, should immediately call an ambulance to the hospital for emergency treatment, if there are conditions for thrombolysis or infarction vessel recanalization, can save the dying myocardium, to avoid heart failure.