RT Book, Section A1 Klein, George J. A2 Prystowsky, Eric N. A2 Klein, George J. A2 Daubert, James P. SR Print(0) ID 1176522784 T1 Narrow QRS Tachycardia T2 Cardiac Arrhythmias: Interpretation, Diagnosis, and Treatment, 2e YR 2020 FD 2020 PB McGraw Hill PP New York, NY SN 9781260118209 LK accesscardiology.mhmedical.com/content.aspx?aid=1176522784 RD 2024/03/29 AB The supraventricular tachycardias are classified by mechanism in Chapters 6 and 7, where the specific entities are discussed in more detail. This chapter is intended to provide a practical diagnostic and therapeutic approach to the patient presenting with supraventricular tachycardia of unknown mechanism. It will become evident that simple steps can narrow the diagnostic possibilities and suggest appropriate therapy in most patients.1-3