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Titolo:
VENTRICULOATRIAL CONDUCTION IN PATIENTS WITH IMPLANTABLE CARDIOVERTER-DEFIBRILLATORS - IMPLICATIONS FOR TACHYCARDIA DISCRIMINATION BY DUAL-CHAMBER SENSING
Autore:
LI HG; THAKUR RK; YEE R; KLEIN GJ;
Indirizzi:
UNIV WESTERN ONTARIO HOSP,339 WINDERMERE RD LONDON ON N6A 5A5 CANADA UNIV WESTERN ONTARIO,DEPT MED LONDON ON N6A 5A5 CANADA
Titolo Testata:
PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY
fascicolo: 12, volume: 17, anno: 1994,
parte:, 1
pagine: 2304 - 2306
SICI:
0147-8389(1994)17:12<2304:VCIPWI>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
TACHYARRHYTHMIAS; MULTICENTER; THERAPY;
Keywords:
IMPLANTABLE CARDIOVERTER DEFIBRILLATORS; TACHYCARDIA; VENTRICULOATRIAL CONDUCTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
7
Recensione:
Indirizzi per estratti:
Citazione:
H.G. Li et al., "VENTRICULOATRIAL CONDUCTION IN PATIENTS WITH IMPLANTABLE CARDIOVERTER-DEFIBRILLATORS - IMPLICATIONS FOR TACHYCARDIA DISCRIMINATION BY DUAL-CHAMBER SENSING", PACE, 17(12), 1994, pp. 2304-2306

Abstract

Incorporation of atrial electrograms in the tachycardia detection algorithm may improve tachyarrhythmia discrimination by ICDs but retrograde ventriculoatrial (VA) conduction over the AV node during ventricular tachyarrhythmia may be problematic. The present study analyzed VA conduction characteristics in 66 ICD patients who had evaluation of the VA conduction system by electrophysiological studies before implant. VA conduction was demonstrated in patients during ventricular decremental stimulation. Forty patients had inducible sustained monomorphic VT. The minim um cycle length maintaining 1:1 VA conduction during ventricular stimulation was longer than the cycle of VT in every patient (496 +/- 100 msec vs 320 +/- 81 msec; P < 0.01). Occasional VA conductionduring VT was observed in five patients and one patient had 2:1 VA conduction during induced VT. No patient had 1:1 VA conduction during VT. We conclude that brisk VA conduction is uncommon and 1:1 VA conduction during VT is rare in ICD recipients. VA conduction is unlikely to complicate the incorporation of atrial electrograms into tachyarrhythmia detection algorithms.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/03/20 alle ore 13:16:57