MOnitoring REsynchronization deviCes and cARdiac patiEnts (MORE-CARE)

Inclusion Criteria:

• Patient indicated to CRT-ICD according to current guidelines:
• Left ventricular systolic dysfunction (LVEF≤35%),
• New York Heart Association functional class III-IV,
• QRS≥120 ms
• Optimized medical treatment.
• Patient implanted within the last 8 weeks with Medtronic CRT-ICD device equipped with fluid accumulation diagnostics, AT/AF monitoring capability, wireless telemetry for automatic remote data transmission and alerting system for physician.
• Patient with less than 8 weeks follow-up, who has not received Carelink® Network Monitor and was not managed by Cardiac Compass report reviewing.
• Carelink Network is available at patient's home
• Patient or the patient's caregiver is willing and able to use the Medtronic CareLink® Network Monitor and to perform the required duties at home or has a family member or assistant perform those duties.
• Patient is willing and able to sign an informed consent form.

Exclusion Criteria:

• Inability to fully understand the instructions relating to remote monitoring using CareLink® Network.
• Permanent AT/AF.
• Patient had not been previously implanted with a CRT/CRT-D device.
• Patient has medical conditions that would limit study participation.
• Patient is less than 18 years of age.
• Patient is enrolled in or intends to participate in another clinical trial that may have an impact on the study endpoints.
• Patient meets any exclusion criteria required by local law.
• Inability or refusal to sign a patient informed consent form.
• Patient's life expectancy is less than one year in the opinion of the physician
• Patient is pregnant or breastfeeding.