Abstract
Paroxysmal supraventricular tachycardia (PSVT) can be defined as a regular tachycardia (heart rate up to 250 beats/min) that begins suddenly. In this paper, the authors report electrocardiographic findings and management of PSVT occurred after local anesthesia for intraoral surgical procedure.
Electrocardiographic characteristics of PSVT in this case revealed atrioventricular nodal reentry. Vagal stimulation techniques and intravenous administration of diazepam, propranolol and adenosine-5'-triphosphate (ATP) were tried to terminate the tachycardia. ATP terminated the tachycardia within less than 1 minutes. We conclude that ATP is the safest and most effective drug of first choice in the acute management of PSVT.
