title: The long QT syndrome: when syncope is common to the young and the elderly.
mesh_terms: D017668:Age of Onset; D000368:Aged; D000889:Anti-Arrhythmia Agents / Q000009:adverse effects; D001919:Bradycardia / Q000150:complications; D002648:Child; D002985:Clinical Protocols; D005260:Female; D006321:Heart / Q000294:innervation / Q000503:physiopathology; D006801:Humans; D015640:Ion Channel Gating; D008133:Long QT Syndrome / Q000139:chemically induced* / Q000151:congenital* / Q000503:physiopathology; D008297:Male; D011802:Quinidine / Q000009:adverse effects; D013233:Stellate Ganglion / Q000503:physiopathology; D013575:Syncope / Q000209:etiology*; D016171:Torsades de Pointes / Q000139:chemically induced* / Q000150:complications / Q000151:congenital*; D014883:Water-Electrolyte Imbalance
chemical_list: D000889:Anti-Arrhythmia Agents; D011802:Quinidine