Stable angina is the absence of an unstable episode of chest pain during the last few weeks. Clinical manifestations of the disease are usually stable, the pain is brief and occurs with exertion. When resting will help and respond well to nitrates. Usually stable angina is often associated with stability of the atherosclerotic plaque.

Coronary intervention is a procedure that helps to resolve coronary artery stenosis without the need for open thoracoscopic surgery. Over the years, this method has achieved many advances both in terms of technique and effectiveness in treatment.

Current treatment methods for coronary artery disease include medical treatment, intervention and surgery. Percutaneous coronary intervention is a non-surgical treatment that both relieves symptoms and resolves the cause of the narrowing of the artery.