The RESULT trial is a prospective, single-center, randomized, open label, parallel study. All consecutive patients with symptomatic HF and reduced ejection fraction (≤ 35%) with ICDs or CRT-Ds implanted accordingly to current ESC practice guidelines will be prospectively randomized in a 1:1 fashion to either a traditional or an RM-based follow-up model. Six hundred patients will be enrolled. The inclusion and exclusion criteria are shown in Table 1. The clinical status of patients will be estimated using the composite endpoint of all-cause death and hospitalization due to cardiovascular reasons. The study protocol has been approved by a local ethics committee and complies with the Declaration of Helsinki. A written informed consent will be obtained from all study participants. Primary endpoint The primary endpoint of the trial will be a composite of all-cause death or hospitalization due to cardiovascular reasons. Hospitalization for cardiovascular reasons should consist of: