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Back| Class I | Angina occurs after strenuous or rapid exertion or prolonged physical activity |
|---|---|
| Class II | Slight limitation of ordinary activity |
| Class III | Marked limitation of ordinary physical activity |
| Class IV | Inability to carry out any physical activity without discomfort; angina may occur at rest |
Explanation
According to the severity of angina and its impact on physical activity, the Canadian Cardiovascular Society (CCS) classifies stable angina into four classes.
