HeartLogic™ in Patients With Heart Failure.

Inclusion Criteria: 1. Patients aged ≥18 years old; 2. Patients implanted with a cardiac defibrillator for less than 6 months, with or without resynchronization, enabling the HeartLogic™ algorithm; 3. Patients with a history of HF (left ventricular ejection fraction ≤40%; or at least one episode of clinical HF with NT-proBNP blood concentration ≥450 ng/L); 4. Patients with New York Heart Association Class II or III HF; 5. Patient able to comply with the protocol, including Latitude™ transmissions (including adequate connectivity), and study visits. 6. Patients with compulsory health insurance Exclusion Criteria: 1. Patients not consenting and non-compliant with remote care directions. 2. Patients with invasive remote HF monitoring device (such as CardioMems); 3. Patients with a concomitant HF device other than cardiac resynchronization, such as a ventricular assist devices or cardiac contractility modulation devices; 4. Patients on heart transplant list, or patients with a heart transplant; 5. Patients with a glomerular filtration rate \<30 ml/min/m2; 6. Participation to a concomitant study evaluating management of HF decompensation, or diuretic titration. 7. Patients enable to consent. 8. Patients receiving State Medical Aid (Aide Médicale d'Etat). 9. Pregnant or breastfeeding women. 10. Persons benefiting from a reinforced protection, namely minors, persons deprived of liberty by a judicial or administrative decision, adults under legal protection, and finally patients in emergency situations