in the differential diagnosis of tachycardias showing a wide qrs complex and having a 1 to 1 relation between ventricular and atrial events , a supraventricular tachycardia with anterograde conduction over an accessory pathway and retrograde conduction by way of the specific conduction system must be considered .
C0039231
tachycardias
C0039240
supraventricular tachycardia