Chronic heart failure is also relatively common in clinical settings, mainly referring to patients with existing heart diseases. If a patient with a long history of hypertension experiences lung infection and fatigue, it can trigger an acute episode of chronic heart failure. At this time, the patient may experience symptoms such as difficulty breathing and fatigue. It is crucial to seek prompt medical attention, where common clinical treatments include cardiotonic, diuretic, and vasodilator therapies. For chronic heart failure, treatment should also actively address and remove the underlying causes and treat the primary disease to save the patient's life.