Integrated pump and cannula systems and related methods

A system for maintaining at least partial blood flow within a heart, comprising:

• a conduit introduced into the heart through at least one of the wall of the right atrium, the wall of the right ventricle, the wall of the pulmonary artery, the wall of left atrium, the wall of the left ventricle, and the wall of the aorta;
• said conduit including a blood inlet port and a blood outlet port, said blood inlet port and said blood outlet port being positioned on either side of at least one of the tricuspid valve, the pulmonary valve, the bicuspid valve, and the aortic valve;
• and
• a blood pump disposed within said conduit for selectively transporting blood from said blood inlet port to said blood outlet port of said conduit.