Sustained symptomatic sinus node reentrant tachycardia: Incidence, clinical significance, electrophysiologic observations and the effects of antiarrhythmic agents

Autor: Gomes, Joseph A., Hariman, Robert J., Kang, Pritpal S., Chowdry, Imtiaz H.
Zdroj: Journal of the American College of Cardiology; January 1985, Vol. 5 Issue: 1 p45-57, 13p
Abstrakt: The clinical, electrocardiographic and electrophysiologic determinants and effects of antiarrhythmic agents on sustained sinus node reentrant tachycardia remain poorly defined. Of 65 consecutive men undergoing electrophysiologic studies for symptomatic paroxysmal supraventricular tachycardia over a 4 year period, 11 (16.9%), who ranged in age from 39 to 76 years, demonstrated sustained sinus node reentrant tachycardia. On the surface electrocardiogram, before electrophysiologic studies, the following diagnoses were considered in the 11 patients: 1) sinus node reentrant tachycardia on the basis of an RP'/P'R ratio of greater than 1 and P wave configuration similar to that of sinus P waves (7 patients); 2) atrioventricular (AV) nodal reentrant tachycardia on the basis of an RP'/P'R ratio of less than 1 (3 patients); and 3) paroxysmal atrial tachycardia with AV block (1 patient). All 11 patients had a history of recurrent palpitation, 4 had syncope, 2 had dizzy spells and 9 had organic heart disease.
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