Abstract:
:One-to-two atrioventricular conduction, ie, the double response to a single sinus or atrial impulse, resulting in two QRS complexes for one P wave, is a rare manifestation of dual atrioventricular (AV) nodal pathways. This report describes the case of a 61-year-old woman with continuous episodes of supraventricular tachycardia caused by independent conduction to the ventricles of sinus impulses over both the fast and the slow AV nodal pathway, giving rise to a ventricular rate that was twice the sinus rate. A wide spectrum of electrocardiographic manifestations of 1:2 AV conduction was observed on the surface electrocardiogram. The diagnosis was suggested by several elements including evidence of dual AV nodal pathways during sinus rhythm and cycle length alternans during tachycardia. The patient underwent successful slow pathway ablation with complete disappearance of symptoms and electrocardiographic manifestations of 1:2 AV conduction.
journal_name
J Electrocardioljournal_title
Journal of electrocardiologyauthors
Fraticelli A,Saccomanno G,Pappone C,Oreto Gdoi
10.1016/s0022-0736(99)90005-5keywords:
subject
Has Abstractpub_date
1999-10-01 00:00:00pages
347-54issue
4eissn
0022-0736issn
1532-8430pii
S0022073699000394journal_volume
32pub_type
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journal_title:Journal of electrocardiology
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