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.…
Document Type: | Conference Proceeding |
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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): | Urheberrechtlich geschützt |