Cardiac Amyloidosis pRevaleNce of in OLDer Subjects Affected by Heart Failure

Inclusion Criteria: * Aged ≥ 80 years * Hospitalised for decompensation of heart failure in the last 12 months * Subjects with hypertrophy of the septum or left ventricle at cardiac echography (defined as ≥ 12 mm) * Subjects able to undergo a bone scintigraphy scan * Subjects willing to participate Exclusion Criteria: * Subjects refusing to participate * Subjects admitted to palliative care unit. * Subjects under guardianship * Subjects with a definite diagnosis of cardiac amyloidosis