What causes edema, heart failure, and breathlessness caused by heart asthma and cor pulmonale?

The patient's cardiopulmonary function has been seriously affected, directly leading to lung ventilation, when not enough oxygen, this situation will occur. For this situation, the patient should be hospitalized immediately, receive long-term low-concentration oxygen. At the same time, pay attention to bed rest, try to choose semi-recumbent position. If there is a concurrent infection, timely treatment of infection.