Killip Classification of Acute Myocardial Infarction*
Class | PAO2† | Clinical Description |
|---|---|---|
1 | Normal | No clinical evidence of left ventricular (LV) failure |
2 | Slightly reduced | Mild to moderate LV failure |
3 | Abnormal | Severe LV failure, pulmonary edema |
4 | Severely abnormal | Cardiogenic shock: hypotension, tachycardia, mental obtundation, cool extremities, oliguria, hypoxia |
* Determined by repeated examination of the patient during the course of illness. | ||
† Determined while the patient is breathing room air. | ||
Modified from Killip T, Kimball JT: Treatment of myocardial infarction in a coronary care unit. A two-year experience with 250 patients. The American Journal of Cardiology 20:457–464, 1967. | ||