How does angina cause fever?

Angina, particularly when it involves significant myocardial ischemia or inflammation, can sometimes lead to fever as a secondary response. The body may react to the stress of reduced blood flow and oxygen to the heart by triggering an inflammatory response, which can elevate body temperature. Additionally, if there is an associated infection or other underlying condition, such as myocarditis, it may also contribute to the development of fever. However, fever is not a typical symptom of stable angina.