Single-chamber ICD, single-zone therapy in primary and secondary prevention patients: the simpler the better?

Abstract

Our results show that simpler settings with single-zone, high-rate programming is associated with ICD shock rates and long-term mortality that does not appear to be worse when compared with contemporary studies which include multizone ICD programming with antitachycardia pacing activated.

2015 HRS/EHRA/APHRS/SOLAECE expert consensus statement on optimal implantable cardioverter‐defibrillator programming and testing

“…The incidence of appropriate and inappropriate ICD shocks depends on the patient’s characteristics, including the indication for the device, concomitant medical therapies including antiarrhythmic medications, programming of the ICD, and the duration of follow-up. With regard to ICD programming, faster VT/VF detection rates, longer detection durations, use of a single zone, use of SVT discriminators, and delivery of ATP have been shown to reduce both appropriate and inappropriate shocks and to improve quality of life [91] , [101] , [126] , [129] , [130] , [133] , [159] , [160] . This programming might improve survival [126] .…”