Extreme tachycardia complicating the use of disopyramide in atrial flutter.
A 59-year-old man presented with atrial flutter and a 2:1 atrioventricular response, which, after intravenous disopyramide, became 1:1. A mechanism of slowed atrial flutter rate and improved atrioventricular nodal conduction, similar to that recognised with quinidine, is suggested.
D001282:Atrial Flutter / Q000188:drug therapy*; D004206:Disopyramide / Q000009:adverse effects* / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D011725:Pyridines / Q000009:adverse effects*; D013610:Tachycardia / Q000139:chemically induced*
D011725:Pyridines; D004206:Disopyramide