| Autor: |
Montenegro, Annibale Sandro, Bombardieri, Gabriele, Barilaro, Cynthia, Di Francesco, Palmiro, Bertazzoni, Stefano, Santarelli, Pietro, Pisanó, Ennio, Alessandrini, Francesco, Possati, Gianfederico |
| Předmět: |
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| Zdroj: |
Pacing & Clinical Electrophysiology; Feb1991, Vol. 14 Issue 2, p362-365, 4p, 3 Diagrams, 1 Graph |
| Abstrakt: |
The aim of the study was to test the hypothesis that defibrillation with a single pulse shuck can be obtained at lower energy using three epicardial patches configuration (one cathode and two anodes) instead of the conventional two patches. The total surface area of the two- and three-patches configuration was the same (10 cm² vs 9.9 cm²). Epicardial spatial configuration was planned by using a computerized heart model. In ten anesthetized open-chest pigs, ventricular fibrillation was induced by using AC current through the mesh plaque epicardial custom-designed electrodes, and the minimum energy requirement for defibrillation was determined 15 seconds after the onset of stable ventricular fibrillation. Results were as follows (mean ± standard deviation): Defibrillation Threshold 16 ± 9 J 9 ± 5 J P < 0.01 Conclusions: three epicardial patches configuration significantly reduces energy requirements for defibrillation compared with two patches when single pulse shock is used. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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