Therapeutische Umschau. Revue thérapeutique
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All types of antiarrhythmic drugs are suitable for the treatment of junctional and AV-reentry Tachycardias. Betablocker, calcium antagonist and digitalis are mainly influencing the conductivity in the AV node, leaving other structures unaltered. ⋯ Class-3 drugs prolong refractoring in all compartments of the heart by preventing re-entry in both, AV nodal tachycardias and AV re-entry in the WPW syndrome. The clinical indication for one of these drugs is mainly influenced by the potential side-effects and by pharmacokinetic considerations.