The five-year survival rate for patients with chronic heart failure is about 50 percent, with the exact length of life varying depending on the condition and their own health. As heart failure progresses into the end stage, there is severe damage to the structure and function of the heart, such as enlargement of the ventricular chambers and fibrosis of the heart muscle, which leads to disruption of the normal function of the heart. The five-year survival rate for heart failure patients is usually around 50 percent. If the patient’s condition is relatively short, the ventricular enlargement and myocardial fibrosis are mild, and he or she is in good health, the patient’s survival rate can reach decades. If the degree of ventricular enlargement and myocardial fibrosis is more serious and the patient’s physical condition is poor, then cardiovascular and cerebrovascular accidents, such as sudden death, are likely to occur, and the patient’s life expectancy is less than five years. People with chronic heart failure should choose the appropriate treatment plan under the guidance of their doctors, and cooperate with them to actively receive treatment and maintain a good state of mind, which can greatly prolong the survival period.