The clinical manifestations of chronic right heart failure are as follows: 1. Patients have vascular filling and anger in the jugular veins, which are the earliest clinical signs of right heart failure. 2. Gastrointestinal symptoms, patients will have nausea, vomiting, anorexia, acid reflux, heartburn, loss of appetite, poor appetite, abdominal distension and other clinical symptoms due to gastrointestinal stasis. 3. varying degrees of dyspnea, severe right heart failure will affect the left ventricular diastolic dysfunction, which will lead to pulmonary stasis and result in dyspnea. 4. Patients will have edema, firstly in the feet and legs, then gradually spreading to the whole body. 5. Patients will have pleural fluid and ascites caused by stasis of blood in the circulation. In severe chronic right heart failure, there are also clinical manifestations such as chills in the limbs, dizziness, and oliguria due to insufficient perfusion in all organs.