Rheumatic heart disease life expectancy is generally uncertain, if the heart valve lesions are mild, no cardiac insufficiency, arrhythmia, thromboembolism, through the regular use of medication, life expectancy is generally no different from normal people; on the contrary, life expectancy is reduced to varying degrees, but there is no specific life expectancy statistics, some patients may be due to the condition of acute exacerbation, life-threatening. 1. Does not affect life expectancy: some patients in the early stage of the disease, heart valve lesions are mild, there is no left atrial enlargement, pulmonary artery dilatation and other structural changes in the heart, cardiac insufficiency is normal, there is no atrial fibrillation, atrial flutter and other cardiac arrhythmias, there is no thrombosis found in the atrium, the condition is well controlled by regular drug therapy, life expectancy is generally no different from normal people. 2. Impact on life expectancy: some patients may not have early treatment or heart disease is more serious, heart failure, arrhythmia, thromboembolism and other complications, its life expectancy may be reduced to varying degrees, but there is no specific statistical data, some patients may lead to acute exacerbation of the condition, the situation is critical, the occurrence of ventricular fibrillation or cardiac arrest. If you suffer from rheumatic heart disease, you should go to the hospital in time, after a comprehensive analysis under the guidance of the doctor, to carry out targeted treatment, do not blindly take medication, so as not to aggravate the condition.