The main cause of death in rheumatic heart valve disease is the development of end-stage heart failure and arrhythmias, most of the rheumatic heart valve disease is severe mitral stenosis combined with valvular disease, that is, the mitral valve combined with the aortic valve problems at the same time, for this type of disease is the main cause of death is the development of advanced heart failure, the late stage will have serious total heart failure, and may even appear cardiogenic shock This can lead to the death of the patient. The most common heart valve disease is aortic stenosis combined with malignant arrhythmias, such as ventricular tachycardia, ventricular fibrillation or cardiac arrest, which can lead to death, so patients with rheumatic heart valve disease must be treated early, and surgery must be considered as soon as possible when the disease cannot be controlled by medication to avoid death from arrhythmias or heart failure in the late stages.