Canadian cardiovascular society classification of angina pectoris
| Myocardial infarction | |
 | |
|---|---|
| Diagram of a myocardial infarction (2) of the tip of the anterior wall of the heart (an apical infarct) after occlusion (1) of a branch of the left coronary artery (LCA, right coronary artery = RCA). | |
| ICD-10 | I21-I22 |
| ICD-9 | 410 |
| DiseasesDB | 8664 |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editors-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]
Overview
The Canadian Cardiovascular Society, classifies the severity of anginal symptoms in patients with chronic stable angina based on the functional impairment of the patient and also quantifies the response to therapy.
C.C.S. Class I
- Ordinary physical activity does not cause angina, such as walking, climbing stairs.
- Angina occurs with strenuous, rapid or prolonged exertion at work or recreation.
C.C.S. Class II
- Slightly limited ordinary physical activities.
- Angina occurs on walking or climbing stairs rapidly, walking uphill, walking or stair climbing after meals, or in cold, or in wind, or under emotional stress, or only during the few hours after awakening.
- Walking more than two blocks on the same level and climbing more than one flight of ordinary stairs at a normal pace and in normal condition.
C.C.S. Class III
- Marked limitations of ordinary physical activity.
- Angina occurs on walking one to two blocks (equivalent to 100-200m) on the same level and climbing one flight of stairs at a normal pace under normal conditions.
C.C.S. Class IV
- Inability to carry on any physical activity without any discomfort.
- Angina occurs at rest.
References
- Hurst’s Heart Disease, Fuster V, 12th edition, 2008
- Canadian Cardiovascular Society
Additional Resources
Other frequently used functional classifications of cardiovascular disease include: