| Autor: |
Breithardt, O.A., Stellbrink, C., Hanrath, P. |
| Zdroj: |
Herzschrittmachertherapie und Elektrophysiologie; Nov2000, Vol. 11 Issue 6, pII49-II53, 5p |
| Abstrakt: |
For many years the indications for cardiac pacing were restricted to patients with underlying bradyarrhythmias. Since the introduction of atrio-ventricular (AV) sequential pacing, numerous studies have evaluated the hemodynamic benefit of optimizing the AV delay in normal hearts. Heart failure due to dilated cardiomyopathy of either idipathic or ischemic origin is frequently associated with major conduction disturbances as atrioventricular conduction delay and bundle branch block. The abnormal activation patterns contribute to impaired left ventricular performance. Results of early studies on pacing for heart failure with conventional right-ventricular apical pacing at a short AV delay were conflicting. Recently multisite pacing evolved as a new therapeutic approach in these patients. Pacing left ventricular sites with delayed activation aims to normalize the contraction patterns, thereby improving hemodynamic function. This review focuses on the concepts and early results of this new approach. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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