Atrial defibrillation with a transvenous lead
| Autor: | Mary R. Olsovsky, Michael Cooklin, Michael R. Gold, Stephen R. Shorofsky, Randall G Brockman |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
medicine.medical_specialty
business.industry Defibrillation Lead system medicine.medical_treatment Atrial fibrillation medicine.disease Transvenous lead Defibrillation threshold Electromagnetic coil Internal medicine Anesthesia cardiovascular system medicine Cardiology cardiovascular diseases Cardiology and Cardiovascular Medicine Lead (electronics) business Coronary sinus |
| Zdroj: | Journal of the American College of Cardiology. 34:358-362 |
| ISSN: | 0735-1097 |
| DOI: | 10.1016/s0735-1097(99)00214-4 |
| Popis: | OBJECTIVES The purpose of this study was to compare transvenous atrial defibrillation thresholds with lead configurations consisting of an active left pectoral electrode and either single or dual transvenous coils. BACKGROUND Low atrial defibrillation thresholds are achieved using complex lead systems including coils in the coronary sinus. However, the efficacy of more simple ventricular defibrillation leads with active pectoral pulse generators to defibrillate atrial fibrillation (AF) is unknown. METHODS This study was a prospective, randomized assessment of shock configuration on atrial defibrillation thresholds in 32 patients. The lead system was a dual coil Endotak DSP lead with a left pectoral pulse generator emulator. Shocks were delivered either between the right ventricular coil and an active can in common with the proximal atrial coil (triad) or between the atrial coil and active can (transatrial). RESULTS Delivered energy at defibrillation threshold was 7.1 ± 6.0 J in the transatrial configuration and 4.0 ± 4.2 J in the triad configuration (p CONCLUSIONS These results indicate that low atrial defibrillation thresholds can be achieved using a single-pass transvenous ventricular defibrillation lead with a conventional ventricular defibrillation pathway. These data support the development of the combined atrial and ventricular defibrillator system. |
| Databáze: | OpenAIRE |
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