Congestive heart failure (CHF)

Reduced ability of the heart to fulfill its function as an efficient pump that accepts blood and pumps it to the various organs of the body. Usually, this is a result of a previous damage that the heart suffered. Such damage can be acute and sudden, as in the case of a heart attack or chronic and gradual, such as caused by Hypertension (high blood pressure) not treated for many years and with time causing structural heart changes. This functional insufficiency causes symptoms due to ineffective blood supply, such as weakness and difficulties to exercise on the one hand and symptoms due to congestion of organs with fluid overload due to inefficient blood evacuation from them by the heart (for example, Pulmonary Edema), on the other hand.