Atrial Reciprocal Rhythm

Atrial reciprocal rhythm following DC conversion of atrial flutter.

T RADITIONALLY, reciprocal rhythms have been classified as atrial and ventricular on the basis of the site to which the impulse returns.1) While the ventricular reciprocal rhythm is not uncommon, the atrial rhythm is exceedingly rare, clinically.2) We experienced an example of atrial reciprocal rhythm following electrical conversion for atrial flutter. To our knowledge, no case of atrial recipr...

Reversed reciprocal rhythm.

An example of reversed reciprocal rhythm is presented with associated 2:I heart block and other abnormalities of conduction. The electrocardiograms have been analysed and compared with an earlier electrocardiogram in which sinus rhythm was present. Despite dramatic electrocardiographic abnormalities, evidence is offered which suggests that there may have been only a small alteration in activity...

Dissociation with interference, reciprocal rhythm, and coronary sinus rhythm.

Reciprocal rhythm of ventricular origin during atrial fibrillation with complete AV block.

A case of reciprocal rhythm of ventricular origin associated with atrial fibrillation and complete AV block is described. This manifestation shows that an atrial bridge is not an essential link in the reciprocal mechanism, and that the reciprocal mechanism is effected through the presence of an upper common AV nodal pathway.

Wolff-Parkinson-White syndrome in association with atrial reciprocal rhythm and reciprocating tachycardia.

The Wolff-Parkinson-White (WPW) syndrome is reflected by a short PR interval and a widened QRS complex, with a slurred initial component the delta wave. The mechanism of this syndrome is thought to be due to the presence of a bypass within the AV junction an additional AV conduction channel which permits rapid AV conduction and consequent pre-excitation of the ventricles. The presence of an add...