paroxysmal AV nodal reentry tachycardia

paroxysmal AV nodal reentry tachycardia

Etymology: Gk, paroxysmos, irritation; L, nodus, knot; Gk, tachys, fast, kardia, heart
a type of paroxysmal supraventricular tachycardia usually initiated by a premature atrial complex and sustained by an atrioventricular nodal reentry mechanism. A vagal maneuver is usually successful in restoring sinus rhythm. If it is not, adenosine or verapamil, procainamide, and cardioversion are tried, in succession.
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