Mitral valve regurgitation can cause backflow, as it is a type of rheumatic heart disease. Currently, treatment primarily focuses on symptomatic relief and improving the patient’s cardiopulmonary function. During this period, it is still important to actively monitor the patient’s heart rate, blood pressure, and pulse changes. If there is a rapid heart rate or increased blood pressure, these conditions need active intervention to alleviate the patient’s state of ischemia and hypoxia. If there is significant regurgitation, it may lead to a state of hypoxia. During this period, it is still important to actively monitor the patient’s heart rate, blood pressure, and pulse. Regular follow-up with cardiac echocardiography is adequate, and it is also necessary to actively prevent upper respiratory infections.