title: Carotid sinus syncope: is pacing required in all patients? Report of two cases and review of literature.
mesh_terms: D001285:Atropine / Q000627:therapeutic use; D002304:Cardiac Pacing, Artificial; D002346:Carotid Sinus / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D013575:Syncope / Q000209:etiology / Q000628:therapy*
chemical_list: D001285:Atropine