This prospective validation study evaluates the ability of a risk algorithm, which can simultaneously predict the risk of death at 7 days and 30 days for patients with acute heart failure presenting to the emergency department. The risk algorithms for prediction of 7-day (Emergency Heart failure Mortality Risk Grade [EHMRG]) and 30-day mortality (EHMRG30-ST) have been previously derived.

Inclusion Criteria:

• Patients with acute heart failure diagnosed in the emergency department

Exclusion Criteria:

• Palliative or do-not-resuscitate (DNR) directive
• Dialysis dependent

Patients presenting to the emergency department diagnosed with heart failure at 8 centers in Ontario, Canada