Supraventricular tachyarrhythmias. Characteristics and care

Physicians often see patients with supraventricular tachycardia of some kind. How does the primary care physician distinguish between a benign, bothersome condition and a life-threatening emergency? What is the proper treatment for various manifestations? Drs Lawhorn and Emmot describe these arrhythmias and their mechanisms and discuss both acute and long-term treatment options.