What Is Orthodromic Avrt

Orthodromic AVRT means that the ventricles are depolarized normally via the atrioventricular node and His-Purkinje system (Figure 3). Because the impulse reaches the ventricles through the His-Purkinje network the QRS complexes will appear normal (i.e QRS duration will be <0.12 s).

Is WPW Antidromic vs Orthodromic?

Only about 5% of the tachycardias in patients who have WPW syndrome are antidromic tachycardias; the remaining 95% are orthodromic.

How do you treat AVRT?

Medications used to terminate symptomatic AVRT episodes and to reduce occurrences include b-blockers, calcium channel blockers, and antiarrhythmic drugs. These medications can be administered orally on a routine outpatient basis, or via intravenous route if necessary in the emergency room.