Killip Class for AMI Hemodynamic Severity

Classify hemodynamic status in acute MI using Killip classification. Class I: no signs of heart failure (in-hospital mortality approximately 6%). Class II: S3 gallop or basal crackles less than 50% of lung fields (approximately 17% mortality). Class III: acute pulmonary edema (approximately 38% mortality). Class IV: cardiogenic shock, SBP below 90 (approximately 81% mortality in original series).

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Classify hemodynamic status in acute MI using Killip classification. Class I: no signs of heart failure (in-hospital mortality approximately 6%). Class II: S3 gallop or basal crackles less than 50% of lung fields (approximately 17% mortality). Class III: acute pulmonary edema (approximately 38% mortality). Class IV: cardiogenic shock, SBP below 90 (approximately 81% mortality in original series)

Each component has a specific meaning:

  • Killip classification — The killip classification recorded for the scenario being assessed.

Note: Interpret the killip class result against the thresholds and context described above.

How to Use

Enter the Killip classification for the scenario you are assessing. Classify hemodynamic status in acute MI using Killip classification. Class I: no signs of heart failure (in-hospital mortality approximately 6%). Class II: S3 gallop or basal crackles less than 50% of lung fields (approximately 17% mortality). Class III: acute pulmonary edema (approximately 38% mortality). Class IV: cardiogenic shock, SBP below 90 (approximately 81% mortality in original series). Use the killip class result to inform your calculation.

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Frequently Asked Questions