Avoid delivering therapies for non-sustained arrhythmias in ICD patients

Although implantable cardioverter-defibrillators (ICDs)/cardiac resynchronization therapy-defibrillators (CRT-Ds) have a significant role in preventing sudden cardiac death (SCD) in high-risk patients, especially for secondary prevention, inappropriate ICD shocks are common (8-40%). They are associated with high morbidity as well.
Programming ICDs to increased detection intervals before therapy administration would be safe and efficacious as compared with conventional programming.
Patients undergoing ICD implantation were randomized in a 1:1 fashion to either prolonged detection (30 of 40 intervals) or routine programming (18 of 24 intervals). All ICDs were programmed to detect arrhythmias with a cycle length of ≤320 msec. A