Only the Avatar was the master of all four elements. Only he could stop the ruthless Fire Nation from conquering the world. But when the world needed him most, he disappeared. Until now... On the South Pole, a lone Water Tribe village struggles to survive.
Heart failure, sometimes known as congestive heart failure, occurs when your heart muscle doesn't pump blood as well as it should. Certain conditions, such as narrowed arteries in your heart (coronary artery disease) or high blood pressure, gradually leave your heart too weak or stiff to fill and pump efficiently.
Congestive Heart Failure (Definition) 1  Congestive heart failure, otherwise known simply as heart failure, is a condition in which the heart muscle is weakened. 2  Angio: It's possible but very unlikely. 3  Heart failure is a complex set of conditions in which the heart fails to pump a normal amount of blood with each beat.