Assertion: atrial fibrillation | /r/Synonym | arrhythmia
Facets:
Source sentences:
text: Atrial fibrillation is an abnormal heart rhythm, also known as an arrhythmia.
text: Atrial Fibrillation is an arrhythmia that originates in the left upper chamber of the heart creating a chaotic irregular electrical signal that interferes and overrides the natural pacemaker of the heart.
text: Atrial fibrillation is a type of abnormal heart rhythm -- also known as an arrhythmia.