When you have heart disease, your heart may not pump blood in the right way. Your heart may become too full of blood. This causes pressure to build in the main vein connected to your kidneys, which may lead to a blockage and a reduced supply of oxygen rich blood to the kidneys. This can lead to kidney disease.
When the kidneys are not working well, your hormone system, which regulates blood pressure, has to work harder to increase blood supply to the kidneys. When this happens, your heart has to pump harder, which can lead to heart disease.
