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Killip Class Acute Heart Failure (STEMI) Calculator

I = no CHF, II = rales/S3, III = pulmonary edema, IV = cardiogenic shock.

Determine the Killip class for a patient presenting with acute MI, ranging from class I (no signs of heart failure) to IV (cardiogenic shock with hypotension and end-organ hypoperfusion). Reports the class, descriptive label, and the historical 30-day mortality estimate (~6 %, 17 %, 38 %, 81 % for I-IV).

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Look up Killip class label and 30-day mortality estimate.

In depth

Determine the Killip class for a patient presenting with acute MI, ranging from class I (no signs of heart failure) to IV (cardiogenic shock with hypotension and end-organ hypoperfusion). Reports the class, descriptive label, and the historical 30-day mortality estimate (~6 %, 17 %, 38 %, 81 % for I-IV).