The medical word that means "rapid, random, ineffectual, and irregular contractions of the heart" is ____.
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The medical word that means " inflammation of the sac surrounding the heart" is ____.
The medical word that means " inability of the heart to pump its required amount of blood" is ____. (three words)
The medical word that means "congenital malformation involving four separate heart defects " is ____. (three words)
The medical word that means "congenital narrowing of the large artery leading from the heart " is ____. (three words)