Why the study?
Does vulnerability safety margin screening compared to defibrillation safety margin screening provide similar first shock success in patients receiving an ICD or CRT-D?
Population
426 patients receiving an implantable cardioverter-defibrillator or cardiac resynchronization therapy…
Comparison
Vulnerability safety margin screening at 14 J vs Defibrillation safety margin screening at 14 J
Design
RCT, Randomized order of screening tests
Follow-up
1 year
Authors
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Permits inductionless or limited testing in most ICD/CRT-D recipients; confirms equivalent first-shock efficacy between screening methods.
Does vulnerability safety margin screening compared to defibrillation safety margin screening provide similar first shock success in patients receiving an ICD or CRT-D?
Screening with vulnerability safety margin or defibrillation safety margin allows for inductionless or limited shock testing in most ICD/CRT-D patients without compromising first shock efficacy.
Day et al. (2007) studied this question.
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