Most people develop heart failure because of a problem with the left
ventricle. But reduced function of the right ventricle can also occur in
heart failure. As blood begins to back up behind the failing left ventricle and
into the lungs, it will become increasingly difficult for the right ventricle
to pump returning blood through the lungs. Like the left ventricle, the right
ventricle will eventually weaken and begin to fail.
What causes it?
The most common cause of right-sided heart failure is actually
left-sided heart failure (either systolic or diastolic heart failure). While left-sided heart
failure is typically the cause of right-sided heart failure, other conditions,
such as certain lung diseases, can cause the right ventricle to fail even when
there is no problem with your left ventricle.
Causes of right-sided heart failure
What is it?
How does it cause right-sided heart failure?
Left-sided heart failure
The left ventricle does not pump blood efficiently,
leading to pressure buildup behind the left side of the heart that eventually
causes the right side of the heart to fail.
Blood backs up behind the left ventricle into the
left atrium, in the lungs, and then eventually in to the right ventricle, which
also eventually fails, allowing blood to then back up farther into the
extremities, the liver, and the other organs.