kilip classification

Heart failure and predict mortality in patients with acute myocardial infarction (AMI), especially in the first 24–48 hours. 

Killip classes (I–IV)

Class I: No clinical evidence of heart failure.

Vital signs and physical exam are normal; no pulmonary rales, no S₃, no jugular venous distension. 

Class II: Mild to moderate left‑ventricular (LV) failure.

Rales/crackles in the lungs, S₃ gallop, elevated jugular venous pressure, or combination

Class III: Severe LV failure – acute pulmonary edema.

Frank pulmonary edema with marked dyspnea, frothy sputum, diffuse rales; oxygenation is impaired. 

Class IV: Cardiogenic shock.

Hypotension (systolic BP ≤90 mmHg), tachycardia, cold clammy skin, oliguria, and evidence of peripheral hypoperfusion; often with pulmonary edema. 

Higher the class , there increased risk or short term mortality