Assertion: atrial fibrillation | /r/HasProperty | a heart rhythm disorder
Facets:
Source sentences:
text: Atrial fibrillation is a heart rhythm disorder that causes a rapid and irregular heartbeat.
text: Atrial Fibrillation or Afib, is a heart rhythm disorder (arrhythmia) that occurs in the top chambers of your heart – the atria.
text: Atrial fibrillation is a heart rhythm disorder in which the upper chambers of the heart (the atria) beat fast and irregularly.
text: Atrial fibrillation is a heart rhythm disorder characterized by the atria ceasing to contract concertedly, which causes a chaotic heartbeat.