title: Demand pacemaker for refractory atrial tachycardia in a patient with aortic regurgitation.
mesh_terms: D001022:Aortic Valve Insufficiency / Q000628:therapy*; D006325:Heart Atria; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D013614:Tachycardia, Paroxysmal / Q000628:therapy*