What is the Seattle HF score?
The Seattle HF score is a risk score developed to predict mortality in patients with heart failure. It is calculated by multiplying a coefficient by a variable and summing the values. Variables included in the model are age (decade), gender (male), NYHA class, ejection fraction, ischemic etiology, systolic blood pressure, diuretic dose (mg/kg), allopurinol use, statin use, if sodium < 138, cholesterol (dL/mg), if haemoglobin more or less than 16, % lymphocytes and uric acid (mg/dL). The score has been updated on an iterative basis to incorporate new and relevant variables based on the publishing of various trials and guidelines. An online calculator is available at http://depts.washington.edu/shfm/. 