title: Tachycardia-bradycardia syndrome (so-called "sick sinus syndrome"). Pathology, mechanisms and treatment.
mesh_terms: D000219:Adams-Stokes Syndrome / Q000209:etiology; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000188:drug therapy / Q000473:pathology / Q000503:physiopathology / Q000628:therapy; D001281:Atrial Fibrillation / Q000209:etiology; D001344:Autopsy; D001919:Bradycardia / Q000150:complications*; D004071:Digitalis Glycosides / Q000627:therapeutic use; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000209:etiology; D006329:Heart Conduction System / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology; D010138:Pacemaker, Artificial; D011433:Propranolol / Q000627:therapeutic use; D012849:Sinoatrial Node / Q000473:pathology; D013610:Tachycardia / Q000150:complications*
chemical_list: D004071:Digitalis Glycosides; D011433:Propranolol