Hämodynamische Langzeitresultate der bifokalen Schrittmacherstimulation
Autor: | M. Bergbauer, G. Sabin |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | DMW - Deutsche Medizinische Wochenschrift. 108:545-549 |
ISSN: | 1439-4413 0012-0472 |
DOI: | 10.1055/s-2008-1069594 |
Popis: | Before and during the half year after implantation of a bifocal cardiac pacemaker haemodynamic investigations were done in 16 patients using various stimulations. Compared with ventricular stimulation bifocal pacemaker treatment resulted in an increase of cardiac ejection by 31%, the optimal AV-time being between 150 and 200 ms. Maximum benefit was obtained in patients with primary decreased cardiac index (less than 2.50 l/min X m2). In these patients the increase of cardiac index during atrial stimulation compared to ventricular stimulation was 43%. In pre-existing sinus bradycardia left-ventricular ejection fraction was significantly increased despite lowering of enddiastolic filling pressure both at rest and during bicycle ergometry. These positive haemodynamic changes were demonstrable unaltered 6 months after pacemaker implantation. |
Databáze: | OpenAIRE |
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