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Titolo:
INAPPROPRIATE SINUS TACHYCARDIA AFTER RADIOFREQUENCY ABLATION OF PARA-HISIAN ACCESSORY PATHWAYS
Autore:
PAPPONE C; STABILE G; ORETO G; DESIMONE A; RILLO M; MAZZONE P; CAPPATO R; CHIERCHIA S;
Indirizzi:
HOSP SAN RAFFAELE,DEPT CARDIOL,VIA OLGETTINA 60 I-20132 MILAN ITALY CLIN SAN MICHELE,LAB ELECTROPHYSIOL CASERTA ITALY UNIV MESSINA,DEPT CARDIOL MESSINA ITALY ALLGEMEINES KRANKENHAUS ST GEORG,MED ABT 2 HAMBURG GERMANY
Titolo Testata:
Journal of cardiovascular electrophysiology
fascicolo: 12, volume: 8, anno: 1997,
pagine: 1357 - 1365
SICI:
1045-3873(1997)8:12<1357:ISTARA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
CATHETER ABLATION; ATRIOVENTRICULAR NODE; SITES;
Keywords:
ACCESSORY PATHWAYS; ARRHYTHMIAS; CATHETER ABLATION; HEART RATE VARIABILITY; PREEXCITATION; SINUS NODE; TACHYCARDIA;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
16
Recensione:
Indirizzi per estratti:
Citazione:
C. Pappone et al., "INAPPROPRIATE SINUS TACHYCARDIA AFTER RADIOFREQUENCY ABLATION OF PARA-HISIAN ACCESSORY PATHWAYS", Journal of cardiovascular electrophysiology, 8(12), 1997, pp. 1357-1365

Abstract

Introduction: Inappropriate sinus tachycardia (IST) has been observedfollowing radiofrequency ablation (RFA) of the AV nodal fast pathway. This study was aimed to prospectively analyze the incidence and clinical significance of IST following RFA of para-Hisian accessory pathways (APs). Methods and Results: Twenty-eight patients (pts) with para-Hisian APs underwent RFA, An AP was defined as para-Hisian whenever its atrial and ventricular insertions were associated with a His-bundle potential greater than or equal to 0.1 mV, RF current was always delivered at the atrial aspect of the tricuspid annulus, to a site where the His-bundle potential was < 0.15 mV, Time-and frequency-domain analysisof heart rate variability was performed in 22 patients, before and after RFA, Abolition of AP conduction was obtained in all pts, and no AVconduction alteration occurred, Six pts (21.4%) presented with IST 45to 240 minutes after the ablation procedure, In 5 of them, IST disappeared spontaneously within 72 hours, whereas in 1 pt beta-blockers were required for 2 months. The atrial potential amplitude (1.217 +/- 0.264 mV vs 0.882 +/- 0.173 mV, P = 0.009) and AN potential amplitude ratio (2.633 vs 1.686, P = 0.05) were significantly higher in pts who developed IST than in those who did not. A marked decrease in heart rate variability was observed only in pts who developed IST. Conclusion: IST is a relatively frequent complication after RFA of para-Hisian APs: it is generally short-lasting and usually does not require any treatment. IST after catheter ablation is likely to depend upon transient parasympathetic denervation of the sinus node.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/09/20 alle ore 17:07:05