What is heart failure?

Heart failure is characterized as a syndrome that impairs the ventricle's ability to fill with or eject blood effectively. In this context, it reflects a complex clinical syndrome resulting from various underlying conditions that can lead to the heart's inability to meet the body's demands for blood circulation. This dysfunction can stem from issues such as weakened heart muscle, stiffened heart walls, or a combination of both, ultimately leading to inadequate blood flow and oxygen delivery to vital organs.

The definition highlights the dual nature of ventricle function: both filling (diastolic dysfunction) and ejecting (systolic dysfunction). When the heart cannot properly fill with blood during diastole or cannot effectively pump blood out during systole, it results in the symptoms commonly associated with heart failure, such as fatigue, shortness of breath, and fluid retention.

Understanding this definition is essential for addressing not only the physiological aspects of heart function but also the clinical management of patients with heart failure. This includes recognizing the signs and symptoms, treatment strategies, and potential complications associated with the condition, showcasing the importance of a comprehensive understanding of heart mechanics.