B. Brembilla-perrot et al., Influence of age on the electrophysiological mechanism of paroxysmal supraventricular tachycardias, INT J CARD, 78(3), 2001, pp. 293-298
Citations number
25
Categorie Soggetti
Cardiovascular & Respiratory Systems","Cardiovascular & Hematology Research
The purpose of this study was to evaluate the influence of age on the mecha
nism of paroxysmal supraventricular tachycardia (PSVT). Previous studies ha
ve shown age and sex differences between certain arrhythmias and especially
changes: in electrophysiological characteristics of Wolff-Parkinson-White
syndrome. Four hundred and eighty five patients aged 9-86 years, with PSVT
and without Wolff-Parkinson-White syndrome in sinus rhythm, were studied. T
he esophageal or intracardiac electrophysiological study used a standardize
d atrial pacing protocol. Paroxysmal junctional tachycardia was induced in
475 patients. The mechanism of tachycardia was not influenced by age and at
rioventricular nodal reentrant tachycardia (AVNRT) was found as the main ca
use of PSVT in all ranges of age. Atrioventricular reentrant tachycardia (A
VRT) using a concealed accessory pathway (AP) had a similar incidence from
youth to elderly. The ratio male/female (M/F) and the inducibility of other
arrhythmias (atrial flutter/fibrillation) (AF/AF1) were also found to be s
imilar in all ranges of age. The age of the patients did not influence the
mechanism of the tachycardia. Most of PVST were related to a AV nodal reent
rant tachycardia. Concealed accessory pathway was identified with a similar
incidence in young and old patients. (C) 2001 Elsevier Science Ireland Ltd
. All rights reserved.