Ejection fraction of 30% can be cured, depends on whether the myocardium has undergone extensive necrosis, usually the myocardium has undergone extensive necrosis can not be cured, the myocardium has not undergone necrosis is generally curable. 1. can not be cured: ejection fraction is a cardiac ultrasound, by measuring the volume of blood ejected from the ventricle, and the ratio of the volume of the ventricle, so as to determine the cardiac function of the indicators, normal in 50% to 75%, less than 50% usually indicates the existence of myocardial injury, if the injury is necrosis of the myocardium, due to myocardium can not be regenerated, only to generate the inability to contract the connective tissue, it can not be cured, can only be through the drug control, to avoid further aggravation of the condition, the heart is not a good idea. Avoid further aggravation. 2. Curable: If the myocardial injury is only a functional injury, such as myocardial contraction weakness caused by hypoxia and ischemia, or myocardial contraction limitation caused by inflammatory edema, usually as long as the improvement of blood supply and elimination of edema, the myocardium can return to normal contraction state, and thus be cured, but we need to pay attention to is a long period of functional injury, which may lead to myocardial necrosis, triggered by irreversible damage, so it is recommended that we seek medical treatment in a timely manner. Ejection fraction of 30% need to be combined with specific conditions, under the guidance of the doctor, while avoiding strenuous activities, so as not to aggravate the burden on the heart and expand the damage.