| Automatic arrhythmia identification using analysis of the atrioventricular association. Application to a new generation of implantable defibrillators. Participating Centers of the Automatic Recognition of Arrhythmia Study Group. | |
| | |
MedLine Citation:
|
PMID: 9054759 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
BACKGROUND: Atrioventricular association is a key criterion for arrhythmia diagnosis. Its use in a defibrillator should significantly reduce the incidence of inappropriate shocks. Therefore, we evaluated the diagnostic accuracy of an algorithm that uses dual-chamber sensing and analysis of atrioventricular association to discriminate ventricular from supraventricular arrhythmias in a prototype of an implantable defibrillator. METHODS AND RESULTS: The algorithm performed a stepwise analysis of arrhythmias. The rhythm was first classified on the basis of cycle lengths. Each episode was then classified as supraventricular or ventricular in origin on the basis of the stability of cycle lengths and atrioventricular association. This algorithm was evaluated in 156 episodes of induced sustained tachycardias. Eighty-nine tachycardias were taken from the Ann Arbor electrogram library; the others were recorded in 50 patients during electrophysiological studies. The atrial and ventricular signals were stored on an external recorder and then injected into an external prototype of a defibrillator system. The algorithm correctly diagnosed 96% of ventricular tachycardia episodes, 100% of ventricular fibrillation episodes, and 92% of double-tachycardia episodes. The mean detection time for ventricular tachycardia was 2.6 +/- 0.8 seconds, and for ventricular fibrillation, it was 2.1 +/- 0.4 seconds. The positive predictive values for the diagnoses of atrial fibrillation and atrial flutter were 92% and 86%, respectively. For ventricular tachycardia and ventricular fibrillation, the values were 95% and 100%, respectively. CONCLUSIONS: Analysis of atrioventricular association promotes reliable differentiation between ventricular and supraventricular tachycardias and should enhance the diagnostic capabilities of implantable defibrillators. |
| | |
Authors:
|
M Nair; N Saoudi; D Kroiss; B Letac |
Related Documents
:
|
3241149 - Ventricular tachycardia masquerading as supraventricular tachycardia: a wolf in sheep's... 8552519 - Use of double ventricular extrastimulation to determine the preexcitation index in atri... 2787529 - Surgery of ventricular tachycardia and ventricular fibrillation in patients with corona... 6731469 - Prognostic significance of isolated sinus tachycardia during first three days of acute ... 2423979 - Spontaneous endless loop tachycardia. 19170919 - Coexisting idiopathic left ventricular tachycardia and atrioventricular reentrant tachy... 21641709 - Assessment of dynamic coronary plaque changes and the clinical consequences in type-ii ... 18684109 - Left ventricular systolic and diastolic dyssynchrony in coronary artery disease with pr... 18840049 - Intramural hematoma of the arch and ascending aorta owing to acute aortic syndrome of t... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Circulation Volume: 95 ISSN: 0009-7322 ISO Abbreviation: Circulation Publication Date: 1997 Feb |
Date Detail:
|
Created Date: 1997-04-03 Completed Date: 1997-04-03 Revised Date: 2007-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0147763 Medline TA: Circulation Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 967-73 Citation Subset: AIM; IM |
Affiliation:
|
Cardiology Department, Hopital Charles Nicolle, Centre Hospitalier et Universitaire de Rouen, France. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Algorithms Arrhythmias, Cardiac / diagnosis*, physiopathology, therapy Atrial Fibrillation / diagnosis Atrial Flutter / diagnosis Atrioventricular Node / physiology, physiopathology* Defibrillators, Implantable* Diagnosis, Differential Heart Rate Humans Reproducibility of Results Tachycardia / diagnosis*, therapy Tachycardia, Ventricular / diagnosis |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Prevalence of thrombus, spontaneous echo contrast, and atrial stunning in patients undergoing cardio...
Next Document: Evaluation of superficial femoral artery compromise and limb growth retardation after transfemoral a...