W-P-W syndrome and tachycardia.
D001281:Atrial Fibrillation / Q000175:diagnosis / Q000188:drug therapy*; D003937:Diagnosis, Differential; D004071:Digitalis Glycosides / Q000009:adverse effects; D006801:Humans; D011342:Procainamide / Q000627:therapeutic use*; D013610:Tachycardia / Q000175:diagnosis / Q000188:drug therapy*; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications*
D004071:Digitalis Glycosides; D011342:Procainamide