Heart failure in adults

Heart failure (HF) is defined as the inability of the heart to maintain adequate cardiac output. 
It is a serious condition, particularly frequent in people over 70 years. 
There are two types:
– chronic HF: gradual onset of signs of HF;
– acute HF: sudden onset of life-threatening HF (cardiogenic acute pulmonary oedema or shock), in most cases in patients with known cardiopathy.