title: I recently had an episode of atrial fibrillation. My doctor gave me pills to slow my heart, but I then had to go into the hospital to have my heart shocked back to its normal rhythm. I'm now taking Coumadin to prevent stroke. I feel fine, but worry that the fibrillation will come back. What brings on this condition?
mesh_terms: D000925:Anticoagulants / Q000008:administration & dosage; D001281:Atrial Fibrillation / Q000209:etiology*; D006801:Humans; D020521:Stroke / Q000517:prevention & control; D014859:Warfarin / Q000008:administration & dosage
chemical_list: D000925:Anticoagulants; D014859:Warfarin