Assertion: atrial fibrillation's symptom | /r/Desires | medical attention
Facets:
Source sentences:
text: Occasional symptoms may be felt for minutes or hours, disappear and return later, persistent symptoms do not go away and require medical attention, and permanent symptoms will always be present and require medication for heart rate control.
text: Your risk of a heart attack is not increased due to atrial fibrillation, a rapid and irregular heartbeat that can cause symptoms requiring medical attention.