<s>[INST] What is Congestive Heart Failure (CHF)? [/INST] Congestive heart failure, known simply as heart failure, happens when the heart no longer pumps sufficient blood to the body's organs. During congestive heart failure, the heart can still circulate blood, but not efficiently, leading to a patient experiencing shortness of breath, swelling in legs and ankles, fatigue, weakness, loss of appetite and a cough.

Congestive heart failure is often caused by high blood pressure, congenital heart disease, coronary artery disease or valvular heart disease. When arteries narrow, the heart weakens or heart tissue becomes stiff, and the symptoms of congestive heart failure can worsen.

Treatment for congestive heart failure includes lifestyle changes and surgery. Source: BRIGHAM AND WOMENS. Link: https://www.brighamandwomens.org/heart-and-vascular-center/diseases-and-conditions/congestive-heart-failure-cardiomyopathy. Field: Cardiovascular. Disease: Heart Failure </s>