Journal ArticleDOI
The bigeminal pulse in atrioventricular rhythm
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TLDR
Bigeminal pulsation in atrioventricular rhythm is extremely rare and has not been reported in the literature, so far as I is aware.Abstract:
Bigeminal pulsation in atrioventricular rhythm is extremely rare. In 1915, the electrocardiograms of an unique case seen at the Massachusetts General Hospital were published.1During the past year, a second case showing the same condition has been examined, also at the Massachusetts General Hospital. No other cases have been reported in the literature, so far as I am aware.2 Atrioventricular rhythm, once called "nodal rhythm," is that cardiac rhythm arising from the atrioventricular node (of Tawara) which lies in the connective tissue below the endocardium of the right auricle just above the septal edge of the tricuspid valve ring. Impulses arising in this node travel in both directions, upward to produce an upside-down contraction of the auricles, and downward to produce ventricular systole. If thea-vnode stimulates the ventricles alone while the sino-auricular node (the normal "pacemaker" of the heart) stimulates the auricles, auriculo-ventricular dissociation occurs either of theread more
Citations
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Journal ArticleDOI
Junctional reciprocating tachycardias. The permanent and paroxysmal forms of A-V nodal reciprocating tachycardias.
TL;DR: Study of capture phenomena during the tachycardia, and the modes of termination not only permit the demonstration of the reentry mechanism but may also determine more precisely the actual location of the circus movement.
Journal ArticleDOI
Dual atrioventricular nodal pathways: a reappraisal.
TL;DR: It was not until 1956 when Moe et al. demonstrated evidence of dual atrioventricular (A-V) transmission system in the dog that this concept began to be formularized.