Comparison of Single-Coil and Dual-Coil Implantable Defibrillators

There was a marginal difference in the defibrillation threshold of transvenous ICDs between single-coil and dual-coil lead systems. However, first-shock efficacy was no different between the 2 groups, and patients with single-coil ICDs had favorable all-cause mortality rates on the basis of data from nonrandomized studies. Potential risks and benefits of single-coil and dual-coil ICD leads should be carefully weighed.