title: Sick sinus syndrome in an infant: severe disturbance of impulse formation and conduction involving the S-A node and the A-V junctional tissue.
mesh_terms: D000284:Administration, Oral; D000925:Anticoagulants / Q000627:therapeutic use; D001146:Arrhythmia, Sinus / Q000175:diagnosis; D001283:Atrioventricular Node / Q000503:physiopathology*; D001285:Atropine / Q000008:administration & dosage / Q000627:therapeutic use; D001919:Bradycardia / Q000175:diagnosis; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis / Q000188:drug therapy / Q000503:physiopathology* / Q000628:therapy; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D007223:Infant; D007263:Infusions, Parenteral; D007275:Injections, Intravenous; D007279:Injections, Subcutaneous; D002542:Intracranial Embolism and Thrombosis / Q000150:complications / Q000188:drug therapy; D007545:Isoproterenol / Q000008:administration & dosage / Q000627:therapeutic use; D008297:Male; D010138:Pacemaker, Artificial; D012849:Sinoatrial Node / Q000503:physiopathology*
chemical_list: D000925:Anticoagulants; D001285:Atropine; D007545:Isoproterenol