What are the main symptoms of left heart failure?

The main symptoms of left heart failure are dyspnea, cough, expectoration, fatigue, palpitation, oliguria and renal function damage caused by pulmonary circulation congestion and reduced cardiac output, which can seriously cause pulmonary edema and cardiogenic shock. Special groups such as the elderly, children and pregnant women should be vigilant and seek medical attention in case of abnormality. The main symptoms of left heart failure are clinical syndrome caused by pulmonary circulation congestion and reduced cardiac output. The main manifestations are: 1. Dyspnea: the most common symptom of left heart failure, which can be manifested as exertional dyspnea, orthopnea, nocturnal paroxysmal dyspnea, etc. 2. Cough, expectoration: Cough is a common symptom of left heart failure, mostly dry cough, or cough white foamy sputum. 3. Fatigue and tiredness: common systemic symptoms of left heart failure. 4. Palpitations: common symptoms of left heart failure, mostly caused by increased heart rate. 5. Oligonuria and renal function damage: severe left heart failure can lead to significant decrease in cardiac output, resulting in decreased renal perfusion, oliguria and renal function damage. In addition, left heart failure may also lead to pulmonary edema, cardiogenic shock and other serious complications. Warm tips for special populations: 1. Elderly: Left heart failure is more common in the elderly, because the elderly often complicated with other diseases, such as lung disease, renal insufficiency, etc., so the symptoms may not be typical, easy to miss diagnosis or misdiagnosis. Children: Left heart failure is rare in children, but it can also occur. Symptoms of left heart failure in children may be different from adults, such as dyspnea, fatigue, growth retardation, etc. Parents should pay close attention to children's health status, such as abnormal timely medical treatment. 3. Pregnant women: Left heart failure can also occur in pregnant women, and the condition may be serious. When pregnant women develop symptoms such as dyspnea and palpitations, they should seek medical attention promptly and undergo relevant examinations and treatment to ensure the safety of themselves and the fetus. In short, The symptoms of left heart failure are atypical and are easily missed or misdiagnosed. For people with high risk factors of cardiovascular disease, such as the elderly, hypertension patients, diabetes patients, etc., they should pay close attention to their health status. If there is any abnormality, they should seek medical treatment in time for relevant examination and treatment to prevent and treat left heart failure.