Table 1.

The classification of angina pectoris at rest in different eras [2, 6, 7]

Early	Late	Present
Crescendo angina Accelerated angina Pre-infarction angina Impending infarction Post-infarction angina Intermediate coronary syndrome Acute coronary insufficiency Status anginosus	Unstable angina pectoris: – Primary – Secondary – Post-infarct Subcategories: – Severity of symptoms – ECG changes	Angina pectoris class IV CCS

CCS Canadian Cardiovascular Society