proarrhythmia


proarrhythmia

Cardiology A drug-related arrhythmia, seen in 4–6% of Pts treated for V tach or V fib, especially in Pts treated with digitalis & diuretics, ↓ left ventricular function, longer pretreatment Q-T intervals Pathogenesis Altered reentry substrate and early after depolarization. See Arrhythmia.

proarrhythmia

(prō-ă-rĭth′mē-ă) An arrhythmia that is stimulated, provoked, or worsened by drug therapy.proarrhythmic, adjective