Clinical manifestations of intractable heart failure in the elderly are weakness, hypuria, dyspnea, cough, sputum, and in severe cases, blood-red foamy sputum. Some patients present with increased nocturia, and more severe patients present with hypuria and inadequate renal perfusion. Blood pressure is sometimes high and sometimes stable, heart rate is faster, and symptoms such as significant pulmonary edema appear. The clinical manifestations of heart failure are dyspnea, weakness, scanty urination, cough, chest tightness, shortness of breath and other symptoms. After intensive heart rate and anti-heart failure treatment, patients who still have symptoms of heart failure in resting state are called persistent heart failure.