EOSS-ATTR Study (eHealth Based Operative Support System in ATTR-CM)

Inclusion Criteria: * Age ≥ 18 years old * HF diagnosis according to European Society of Cardiology (ESC) * Patients with a HF decompensation in the last 12 months * Confirmed diagnosis of ATTR-CM (ATTRv or ATTRwt) * Written informed consent Exclusion Criteria: * Age\<18 years old * Participation in another clinical trial * Moderate or severe cognitive impairment without a competent caregiver * Lack of social support * Institutionalized patients * Life expectancy less than 1 year (excluding HF) * Institutional-based or end-of-life care * Serious psychiatric illness * Planned cardiac surgery * Planned heart transplantation or left ventricular assist device (LVAD) implant * Patients in haemodialysis program * The patient is unable or unwilling to give the informed consent to participate * The patient is considered an unsuitable candidate for this study according to the decision of the local investigator * Unstable patients with signs of fluid overload or low cardiac output