Common triggers for acute attacks of chronic heart failure include coronary heart disease, severe hypertension, hyperthyroidism, and pulmonary infections. In particular, in elderly patients, a combination of COPD and infection, along with cardiac dysfunction, will often lead to an acute heart failure attack. In the clinical situation, some patients with stable condition may have heart failure because their blood pressure is not well controlled and may be high or low, especially in the case of severe hypertension, which may cause a great increase in peripheral vascular resistance, thus causing serious impairment of the heart’s ability to pump blood to the outside, and the main clinical manifestation is chest suffocation and chest tightness. suggest that patients must be sedated, adopt a semi-recumbent position, and carry out effective therapeutic measures such as diuresis and cardiac strengthening. If acute heart failure is controlled and can be effectively relieved in a very short time, it usually does not have serious effects on the patient.