Why the study?
Does positioning the defibrillation anode in the left subclavian vein improve defibrillation efficacy and lower defibrillation thresholds compared to the superior vena cava in patients receiving nonthoracotomy ICD lead systems?
Population
17 patients undergoing implantation of an investigational unipolar electrode used as the defibrillation…
Comparison
Defibrillation anode positioned in the left… vs Defibrillation anode positioned in the superior…
Design
RCT, Randomized to start DFT testing in the SVC or the left subclavian vein…
Authors
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Supports left subclavian vein anode placement in nonthoracotomy ICDs; extends RCT evidence guiding optimal lead positioning.
Does positioning the defibrillation anode in the left subclavian vein improve defibrillation efficacy and lower defibrillation thresholds compared to the superior vena cava in patients receiving nonthoracotomy ICD lead systems?
Positioning the defibrillation anode in the left subclavian vein significantly improves defibrillation efficacy and lowers defibrillation thresholds compared to the superior vena cava.
Markewitz et al. (1997) studied this question.
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