Cardiac insufficiency and Heart failure

Cardiac insufficiency noun - Inadequate blood flow to the heart muscles; can cause angina pectoris.

Heart failure and cardiac insufficiency are semantically related. In some cases you can use "Heart failure" instead a noun phrase "Cardiac insufficiency".

Heart failure noun - Inability of the heart to pump enough blood to sustain normal bodily functions.

Cardiac insufficiency and heart failure are semantically related. You can use "Cardiac insufficiency" instead a noun phrase "Heart failure".