paroxysmal tachycardia

Main Entry: paroxysmal tachycardia
Function: noun
: tachycardia that begins and ends abruptly and that is initiated by a premature supraventricular beat originating inthe atrium or in the atrioventricular node or bundle of His or by a premature ventricular beat

paroxysmal tachycardia n.
Recurrent attacks of tachycardia, having abrupt onset and termination and originating from an ectopic focus.