Cardiogenic respiratory distress refers to cardiogenic dyspnea caused by factors such as increased hydrostatic pressure and is commonly associated with cardiogenic pulmonary edema due to left heart insufficiency, which in turn leads to respiratory failure. Cardiogenic dyspnea is mainly caused by left heart and or, right heart failure, and the two occur by different mechanisms, with left heart failure causing more severe dyspnea. So, how should patients usually prevent cardiogenic respiratory distress caused by left heart failure? The following is a brief introduction: 1. Prevent colds: During the cold and flu season or in case of sudden climate change, patients should go out less, wear a mask and add clothes appropriately, and go to less crowded places. Patients who have respiratory infections, it is very easy to make the condition deteriorate sharply. 2, moderate activity: do some physical activities within the ability, but avoid too much activity, too violent, not to participate in more strenuous activities, in order to avoid sudden aggravation of heart failure. 3, diet should be light and less salt: diet should be less oily, more vegetables and fruits. For patients who have already developed heart failure, salt intake must be controlled. Excessive salt intake will aggravate fluid retention and edema, but it is not necessary to completely eliminate salt. 4.Healthy lifestyle: Be sure to quit smoking and drinking, keep your mind balanced, don’t let your emotions fluctuate too excitedly, and also ensure sufficient sleep. 5, timely treatment of various primary diseases of heart disease, such as foot disease, hyperthyroidism, hypertension, rheumatism, arteriosclerosis, etc. 6.Actively treat various heart diseases, such as heart pain, chest paralysis, lung distension, palpitation, palpitation, dizziness, etc., in order to prevent the occurrence of heart failure, and once the disease develops, it should be actively rescued and treated in a timely manner. 7. Closely observe the condition and carefully and meticulously regulate the care. Accurately record body temperature, respiration, heart rate and rhythm, blood pressure, weight, urine output, etc. Operation should be light, careful and cautious, language should be slow and low, at the same time do a good job of spiritual care, relieve the patient’s mind concerns; seriously ill patients should be absolutely bed rest, the light can be appropriate activities, such as gymnastics, taijiquan, walking.