Heart failure is a general disease affecting many organs and regulatory systems with a prevalence of 10% after 75 years of age, leading to significant hospitalization in the elderly. This generates a significant cost for our health system. The management of patients over 75 years of age in acute heart failure requires special monitoring of diuresis and weight. However, it is sometimes difficult to collect urine from incontinent elderly patients (not catheterized, habitually wearing protection) under intravenous diuretics. The evaluation of a non-invasive technique of urine collection for the adaptation of diuretic treatment in the incontinent patient with heart failure over 75 years of age in the acute phase seems to us to be interesting to conduct.

Inclusion Criteria:

• Patient over 75 years of age
• Geriatric short-stay inpatient, geriatric/cardio medicine unit geriatrics
• Incontinent patient with urinary protection
• Patient with acute heart failure according to the diagnosis made by the doctors of unity
• Patient treated with intravenous diuretic
• Patient benefiting from a social security scheme or benefiting from it by a third party
• Patient who gave their non-opposition to the study after clear information

Exclusion Criteria:

• Patient hospitalized in another unit of the geriatric division
• Patient allergic to the protections provided
• Patient carrying a bladder probe upon entry into the unit
• Patient with a precarious non-perfusable venous capital