Assertion: atrial fibrillation | /r/HasProperty | irregular heart rhythm
Facets:
Source sentences:
text: Atrial fibrillation (AFib) is an irregular heart rhythm in which your heart flutters instead of beating.
text: Atrial fibrillation is an irregular heart rhythm (arrhythmia) that is irregular, often rapid heart rhythm that causes the atrial chambers of the heart to beat rapidly.
text: Atrial fibrillation is an irregular heart rhythm associated with disorganized electrical activity in the upper two chambers of the heart.