coronary failure vs heart failure

coronary failure and heart failure both are nouns.

Word	Noun	Adjective	Verb	Adverb
coronary failure	Yes	No	No	No
heart failure	Yes	No	No	No

As nouns, coronary failure and heart failure are synonyms defined as:

coronary failure and heart failure: inability of the heart to pump enough blood to sustain normal bodily functions

coronary failure (noun)	heart failure (noun)
inability of the heart to pump enough blood to sustain normal bodily functions	inability of the heart to pump enough blood to sustain normal bodily functions