Heart failure and cardiac failure are the same, but in clinical standard diagnosis, it is called heart failure, or congestive heart failure, which can be divided into left heart failure, right heart failure, and total heart failure. Heart failure is a group of clinical syndromes caused by the gradual progression and aggravation of a condition in the presence of an underlying disease. Underlying diseases include hypertension, coronary artery disease, diabetes, cardiomyopathy, myocarditis, valvular heart disease, and pericardial disease, etc. Initially, there is a significant decline in activity levels; even slightly more activity can cause chest tightness, shortness of breath, and wheezing. Severe cases may be accompanied by episodes of respiratory distress, and as the condition progressively worsens, the aforementioned symptoms can occur even at rest. Heart failure currently still utilizes the New York Heart Association functional classification, which is divided into four stages, with stage four being the most severe heart failure.