TY - CHAP U1 - Konferenzveröffentlichung A1 - Ismer, Bruno A1 - Melichercik, Juraj A1 - Heinke, Matthias T1 - High-resolution semi-invasive left heart electrocardiography in cardiac pacing and cardiac resynchronization Therapy. T2 - Biomedizinische Technik / Biomedical Engineering N2 - Responder-rate in cardiac resynchronization therapy (CRT) of patients in sinus rhythm (SR) or atrial fibrillation (AF) mainly depends on accurat selection, optimal position of the left ventricular electrode and individualization of hemodynamical parameters of the implanted biventricular pacing system during follow-up. High resolution esophageal left heart electrocardiography offers a quick and semi-invasive approach to the electrical activity of left atrium and left ventricle. It was used in 62 heart failure patients in sinus rhythm and 11 in atrial fibrillation after implantation of CRT systems to compare the semi-invasive interventricular conduction delay (IVCDE) with QRS width. In all of the patients, guideline decision for CRT was linked with IVCDE of about 40ms and up. From logical point of view, IVCDE provides the minimal target interval for the left ventricular electrode placement in order to exclude non-responders. Esophageal measurement of interatrial conduction intervals in VDD and DDD pacing was utilized to individualize the AV delay and to exclude adverse hemodynamic effects. Y1 - 2012 SN - 0013-5585 (Print) SS - 0013-5585 (Print) SN - 1862-278X (Online) SS - 1862-278X (Online) U6 - https://doi.org/10.1515/bmt-2012-4157 DO - https://doi.org/10.1515/bmt-2012-4157 VL - 57 IS - SI-1 Track-Q SP - 379 EP - 381 PB - Walter de Gruyter CY - Berlin, Boston ER -