Left heart failure, a cardiovascular disease, is more common in clinical practice, especially during the change of seasons. Many elderly people have wheezing aggravated by inspiratory distress due to colds or pneumonia, some manifesting as wheezing after activity, others manifesting as wheezing after sleeping and lying flat, doing up, with relief of self-conscious symptoms. Clinical manifestations vary, and some patients may present with persistent coughing after lying flat and doing up with relief of self-conscious coughing during the onset of symptoms. Other elderly people show swelling of both lower limbs and accelerated heart rate. These manifestations are the common patient complaints of chronic left heart failure. In the case of acute left heart failure, the condition is quite critical. During the onset of the disease, the patient may experience accelerated whistle rate, severe swelling of both lower limbs and the whole body, forced seating, cyanosis of the lips, sometimes accompanied by profuse sweating, irritability, some people may even cough up pink foamy sputum, and others may have a rapid heartbeat and a transient increase in blood pressure followed by a continuous drop. Patients who are critically ill may become confused during the course of the disease due to lack of oxygen to the brain. Patients with left heart failure can sometimes hear wet rales in both lungs on auscultation, and the x-ray of the lungs can show vascular shadowing in the hilum. Cardiac ultrasound can assess the function of the heart, while chest X-ray and blood work can detect lung infections early. A common trigger for left heart failure, especially in the elderly, is infection of the whistle system. Other triggers include exertion
Anemia Hemorrhage Emotional distress and rapid infusion of fluids.