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Titolo:
RADIOFREQUENCY ABLATION OF AV-NODAL REENT RY TACHYCARDIA - EXPERIENCEWITH SELECTIVE FAST PATHWAY ABLATION
Autore:
WILLEMS S; CHEN X; HINDRICKS G; KOTTKAMP H; ROTMAN B; HAVERKAMP W; BREITHARDT G; BORGGREFE M;
Indirizzi:
UNIV MUNSTER,MED KLIN & POLIKLIN,ALBERT SCHWEITZER STR 33 D-48149 MUNSTER GERMANY UNIV MUNSTER,INST ARTERIOSKLEROSEFORSCH W-4400 MUNSTER GERMANY
Titolo Testata:
Zeitschrift fur Kardiologie
fascicolo: 2, volume: 83, anno: 1994,
pagine: 165 - 172
SICI:
0300-5860(1994)83:2<165:RAOARR>2.0.ZU;2-R
Fonte:
ISI
Lingua:
GER
Soggetto:
PARKINSON-WHITE SYNDROME; SLOW PATHWAYS; ENERGY; CONDUCTION;
Keywords:
AV-NODAL REENTRANT TACHYCARDIA; RADIOFREQUENCY CATHETER ABLATION; MODIFICATION OF THE AV-NODE; FAST PATHWAY ABLATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
S. Willems et al., "RADIOFREQUENCY ABLATION OF AV-NODAL REENT RY TACHYCARDIA - EXPERIENCEWITH SELECTIVE FAST PATHWAY ABLATION", Zeitschrift fur Kardiologie, 83(2), 1994, pp. 165-172

Abstract

AV-nodal reentrant tachycardia (AVNRT) is a common cause of recurrentsupraventricular tachycardia. Currently, catheter ablation of either slow or fast pathway are nonpharmacologic options for the treatment ofpatients with AVNRT. Radiofrequency (RF) catheter ablation of the fast pathway was attempted in 35 patients (aged 46.7 +/- 15 years; 12 m, 23 f) with recurrent AVNRT RF energy (25-50 watt, 30-90 s) was delivered to the anterior right atrial septum. The catheter was placed posterior to the largest His bundle deflection. AV conduction was monitored during continuous pacing of the high right atrium while the RF currentwas applied. RF-ablation was acutely successful using a mean of 6.5 +/- 6.2 impulses in 31 patients. Late spontaneous block of the slow pathway occurred in one patient (pat. 17) with an unsuccessful initial attempt of fast pathway ablation. PQ and AH interval increased significantly after the ablation procedure (PQ: from 149 +/- 27 to 208 +/- 34 ms, AH: from 76 +/- 22 to 131 +/- 38 ms; p value: < 0.0001). Acute interruption of retrograde VA conduction was the result in 23 patients. Six patients (17 %) had a recurrence of AVNRT during a follow-up period of 11.9 +/- 7.5 months. Five of 6 patients underwent a second successful procedure. Complete AV block occurred in 3 of the first 10 consecutive patients and in none of the subsequent 25 patients (overall incidence: 8.6 %). Thus, RF ablation of the fast retrograde pathway is an effective method for the curative treatment of AVNRT. The relatively high initial incidence of complete AV block could be substantially reduced after a learning curve. However, the overall risk of AV block remains a severe complication of fast pathway ablation.

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Documento generato il 25/09/20 alle ore 13:18:02