Objectives: To determine the effect of physiologic catecholamine concentrations on the defibrillation threshold (DFT) in patients with implanted cardioverter defibrillators. Background: DFT is the ...

BOSTON — An investigative small-diameter defibrillation lead for implantable cardioverter-defibrillators has exceeded its safety and efficacy expectations in a pivotal clinical trial. The LEADR trial ...