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Semi-invasive determination of interventricular and intraleftventricular conduction delay in CRT patients

  • Using guideline parameters for indication of cardiac resynchronization therapy (CRT), only about two thirds of the patients improve clinically. Unfortunately both, surface ECG and echo are uncertain to predict CRT response. To better characterize cardiac desynchronization in heart failure, interventricular (IVCD) and intra-leftventricular conduction delays (ILVCD) were measured by esophageal leftUsing guideline parameters for indication of cardiac resynchronization therapy (CRT), only about two thirds of the patients improve clinically. Unfortunately both, surface ECG and echo are uncertain to predict CRT response. To better characterize cardiac desynchronization in heart failure, interventricular (IVCD) and intra-leftventricular conduction delays (ILVCD) were measured by esophageal left ventricular electrogram (LVE). Recordings in 43 CRT patients (34m, 9f, age: 64.7 ± 9.5yrs) evidenced only weak correlation between IVCD and QRS of 0.53 and between ILVCD and QRS of 0.33. This demonstrated that QRS duration is not a reliable indicator of desynchronization. Therefore, the study resulted into development of LVE feature for a programmer with implant support device. It can be used interoperatively to guide the left ventricular electrode location in order to increase responder rate in CRT.show moreshow less

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Metadaten
Document Type:Conference Proceeding
Conference Type:Konferenz-Abstract
Zitierlink: https://opus.hs-offenburg.de/596
Bibliografische Angaben
Title (English):Semi-invasive determination of interventricular and intraleftventricular conduction delay in CRT patients
Conference:BMT 2010: Dreiländertagung der Deutschen, Schweizerischen und Österreichischen Gesellschaft für Biomedizinische Technik / DGBMT Jahrestagung (44. : 6.-9. Oktober 2010 : Freiburg)
Author:Bruno IsmerStaff MemberGND, Kirsten-Maria Rotter, Matthias HeinkeStaff MemberORCiDGND, Ibrahim Akin, Katharina Kroll, Stephanie Schell-Dieckel, Ulrich Trautwein, Wolfgang Voß, Christoph Melzer, Frank Weber, Ralf Peters, Christoph A. Nienaber
Date of Publication (online):2010/10/26
Place of publication:Berlin, Boston
Publisher:Walter de Gruyter
First Page:141
Last Page:143
Parent Title (Multiple languages):Biomedizinische Technik = Biomedical engineering
Volume:55
Issue:S1
ISSN:0013-5585 (Print)
ISSN:1862-278X (Online)
DOI:https://doi.org/10.1515/bmt.2010.709
Language:English
Inhaltliche Informationen
Institutes:Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019)
Institutes:Bibliografie
Formale Angaben
Open Access: Closed Access 
Licence (German):License LogoUrheberrechtlich geschützt