Heart failure is a medical condition when the heart is not able to pump enough to supply blood to meet the needs of the body. Patients with heart failure will have reduced functioning ability, reduced quality of life, depending on the level, they will need different support. People with stage 4 or end-stage heart failure are at increased risk of death from arrhythmias and episodes of decompensated heart failure. Heart failure is divided into two categories: acute and chronic heart failure.

Heart failure is a condition in which the heart is not able to pump enough blood to meet the body's needs. People with severe heart failure are at high risk of dying from arrhythmias and episodes of decompensated heart failure.