AVNRT medical therapy
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AVNRT Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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AVNRT medical therapy On the Web |
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American Roentgen Ray Society Images of AVNRT medical therapy |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Medical therapy can be initiated with drugs that slow AV nodal conduction.
First Line Therapy
Adenosine
Beta blockers
Second Line Therapy
Numerous other antiarrhythmic drugs may be effective if the more commonly used medications have not worked; these include flecainide or amiodarone. Both adenosine and beta blockers may cause tightening of the airways, and are therefore used with caution in people who are known to have asthma. Calcium channel blockers should be avoided if there is a wide complex tacycardia and the diagnosis of AVNRT is not clearly established in so far as calcium channel blockers should be avoided in ventricular tachycardia. If the diagnosis of AVNRT is established, then non-dihydropyridine calcium channel blockers (such as verapamil) may be administered to terminate the rhythm is other agents are not effective.