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Titolo:
RECURRENCE AND LATE BLOCK OF ACCESSORY PATHWAY CONDUCTION FOLLOWING RADIOFREQUENCY CATHETER ABLATION
Autore:
CHEN X; KOTTKAMP H; HINDRICKS G; WILLEMS S; HAVERKAMP W; MARTINEZRUBIO A; ROTMAN B; SHENASA M; BREITHARDT G; BORGGREFE M;
Indirizzi:
UNIV MUNSTER,MED KLIN & POLIKLIN,C ALBERT SCHWEIZER STR 33 D-48129 MUNSTER GERMANY UNIV MUNSTER HOSP,DEPT CARDIOL & ANGIOL MUNSTER GERMANY INST RES ARTERIOSCLEROSIS MUNSTER GERMANY
Titolo Testata:
Journal of cardiovascular electrophysiology
fascicolo: 8, volume: 5, anno: 1994,
pagine: 650 - 658
SICI:
1045-3873(1994)5:8<650:RALBOA>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
PARKINSON-WHITE SYNDROME; ATRIOVENTRICULAR CONNECTIONS; CURE;
Keywords:
RADIOFREQUENCY ABLATION; ACCESSORY PATHWAY; WOLFF-PARKINSON-WHITE SYNDROME; RECURRENCE OF ACCESSORY PATHWAY CONDUCTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
X. Chen et al., "RECURRENCE AND LATE BLOCK OF ACCESSORY PATHWAY CONDUCTION FOLLOWING RADIOFREQUENCY CATHETER ABLATION", Journal of cardiovascular electrophysiology, 5(8), 1994, pp. 650-658

Abstract

Introduction: Many issues regarding the recurrence of accessory pathway conduction and the long-term outcome of late block of accessory pathway conduction are still unknown or controversial. Methods and Results: Data from 217 patients who underwent an initially successful radiofrequency ablation of accessory pathways and 7 patients with late blockof accessory pathway conduction following an initially unsuccessful ablation were analyzed. During a mean followup of 19 +/- 11 months, accessory pathway conduction resumed in 21 (10%) of 217 patients following an initially successful ablation and in 6 (86%) of 7 patients with late block of accessory pathway conduction (P < 0.01). After initially successful ablations, the recurrence rates of accessory pathway conduction at 1, 3, and 6 months were 5.9%, 7.4%, and 11.3 %, respectively. A late electrophysiologic study at 6 months uncovered recurrence in only 1 of 124 asymptomatic patients, but failed to detect the late recurrence in 2 patients in whom the accessory pathway conduction resumed after more than 6 months. Multivariate analysis revealed that independent predictors for recurrence of accessory pathway conduction were concealed accessory pathway, presence of transient effect of radiofrequency pulse, and more than 5 pulses required for initial cure. Accessory pathway location, length of the tip electrode of the ablation catheter,and repeat radiofrequency pulses (''safety pulses'') after effective pulses did not predict resumption of accessory pathway conduction. Conclusions: After initially successful ablation, the recurrence rates ofaccessory pathway conduction at 1, 3, and 6 months were 5.9%, 7.4%, and 11.3%, respectively. Late electrophysiologic testing had little prognostic value in asymptomatic patients following successful ablation. Application of ''safety pulses'' did not prevent recurrence. Late block of accessory pathway conduction did not predict long-term efficacy.

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Documento generato il 25/09/20 alle ore 13:09:31