Signal averaging transesophageal left heart ECG software to evaluate left atrial conduction delay and left ventricular conduction delay in heart failure patients with dilated and ischaemic cardiomyopathy

  • Cardiac resynchronization therapy with biventricular pacing is an established therapy for heart failure patients with elec-trical left ventricular desynchronization. The aim of this study was to evaluate left atrial conduction delay, intra left atrial conduction delay, left ventricular conduction delay and intra left ventricular conduction delay in heart failure patients usingCardiac resynchronization therapy with biventricular pacing is an established therapy for heart failure patients with elec-trical left ventricular desynchronization. The aim of this study was to evaluate left atrial conduction delay, intra left atrial conduction delay, left ventricular conduction delay and intra left ventricular conduction delay in heart failure patients using novel signal averaging transesophageal left heart ECG software. Methods: 8 heart failure patients with dilated cardiomyopathy (DCM), age 68 ± 9 years, New York Heart Association (NYHA) class 2.9 ± 0.2, 24.8 ± 6.7 % left ventricular ejection fraction, 188.8 ± 15.5 ms QRS duration and 8 heart fail-ure patients with ischaemic cardiomyopathy (ICM), age 67 ± 8 years, NYHA class 2.9 ± 0.3, 32.5 ± 7.4 % left ventricu-lar ejection fraction and 167.6 ± 19.4 ms QRS duration were analysed with transesophageal and transthoracic ECG by Bard LabDuo EP system and novel National Intruments LabView signal averaging ECG software. Results: The electrical left atrial conduction delay was 71.3 ± 17.6 ms in ICM versus 72.3 ± 12.4 ms in DCM, intra left atrial conduction delay 66.8 ± 8.6 ms in ICM versus 63.4 ± 10.9 ms in DCM and left cardiac AV delay 180.5 ± 32.6 ms in ICM versus 152.4 ± 30.4 ms in DCM. The electrical left ventricular conduction delay was 40.9 ± 7.5 ms in ICM ver-sus 42.6 ± 17 ms in DCM and intra left ventricular conduction delay 105.6 ± 19.3 ms in ICM versus 128.3 ± 24.1 ms in DCM. Conclusions: Left heart signal averaging ECG can be utilized to analyse left atrial conduction delay, intra left atrial con-duction delay, left ventricular conduction delay and intra left ventricular conduction delay to improve patient selection for cardiac resynchronization therapy.show moreshow less

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:Martin Lorenz, Bruno IsmerGND, Kerstin Schraube, Hans Reiner Figulla, Matthias HeinkeGND
Publisher:DeGruyter
Date of Publication (online):2012/08/31
Pagenumber:4
Language:English
GND Keyword:Elektrokardiogramm; Herzmuskelkrankheit; Signaltechnik; Überwachung
Parent Title (English):Biomedical Engineering / Biomedizinische Technik
Volume:57
Issue:Suppl. 1
ISSN:0013-5585
Document Type:Article (reviewed)
Institutes:Hochschule Offenburg / Bibliografie
Acces Right:Frei zugänglich
Release Date:2019/10/24
Licence (German):License LogoEs gilt das UrhG
DOI:https://doi.org/10.1515/bmt-2012-4274