title: Prinzmetal's variant angina with syncope. Treatment with permanent demand pacemaker.
mesh_terms: D000787:Angina Pectoris / Q000150:complications / Q000628:therapy*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007548:Isosorbide Dinitrate / Q000627:therapeutic use; D008875:Middle Aged; D010138:Pacemaker, Artificial; D013575:Syncope / Q000209:etiology*
chemical_list: D007548:Isosorbide Dinitrate