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Left ventricular tip versus superior vena cava coil electrogram – a new approach for automatic AV delay optmization in cardiac resynchronization

  • AV delay (AVD) optimization can improve hemodynamics and avoid nonresponding to cardiac resynchronization therapy (CRT). AVD can be approximated by the sum of the individual implant-related interatrial conduction interval and a mean electromechanical interval of about 50ms. We searched for methods to facilitate automatic, implant-based AV delay optimization. In 25 patients (19m, 6f, age: 65±8yrs.)AV delay (AVD) optimization can improve hemodynamics and avoid nonresponding to cardiac resynchronization therapy (CRT). AVD can be approximated by the sum of the individual implant-related interatrial conduction interval and a mean electromechanical interval of about 50ms. We searched for methods to facilitate automatic, implant-based AV delay optimization. In 25 patients (19m, 6f, age: 65±8yrs.) with Medtronic Insync III Marquis CRT-D series systems and left ventricular electrode at lateral or posterolateral wall, we determined interatrial conduction intervals by telemetric left ventricular tip versus superior vena cava coil electrogram (LVCE). Compared with esophageal measurements, the duration of optimal AV delay by LVCE showed good correlation (k=0.98, p=0.01) with a difference of 1.5±4.9ms, only. Therefore, LVCE is feasible to determine interatrial conduction intervals in order to automate AV delay optimization in CRT-D pacing promising increased accuracy compared to other algorithms.show moreshow less

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Metadaten
Document Type:Conference Proceeding
Conference Type:Konferenz-Abstract
Zitierlink: https://opus.hs-offenburg.de/743
Bibliografische Angaben
Title (English):Left ventricular tip versus superior vena cava coil electrogram – a new approach for automatic AV delay optmization in cardiac resynchronization
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, Lena Rösch, Katharina Kroll, Matthias HeinkeStaff MemberORCiDGND, Thomas Körber, 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:9
Last Page:10
Parent Title (Multiple languages):Biomedical Engineering / Biomedizinische Technik
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