Term Name:	atrial fibrillation
Synonyms:	A-fib, AFib
Definition:	A heart conduction disease that is characterized by uncoordinated electrical activity in the heart's upper chambers (the atria), which causes the heartbeat to become fast and irregular and has symptoms palpitations, weakness, fatigue, lightheadedness, dizziness, confusion, shortness of breath and chest pain.
Ontology:	Human Disease [DOID:0060224]   ( DOID:0060224 )