double tachycardia

dou·ble tach·y·car·di·a

the simultaneous tachycardia of two ectopic pacemakers, for example, atrial and junctional tachycardia.
References in periodicals archive ?
1) Thus, although every arrhythmia caused by digitalis may occur in its absence, few of them suggest digitalis toxicity as strongly as this double tachycardia with AV dissociation in a man taking the drug.