Angina Pectoris Flashcards
What is the definition of Angina?
Chest pain due to myocardial ischemia without infarction
What are the two types of Angina?
Stable and unstable
What is the definition of stable angina?
Predictable episodic chest pain associated with particular levels of exertion or some other form of increased demand (e.g. tachycardia) that is usually relieved with rest or drugs such as GTN.
Definition of unstable angina?
Increasingly frequent chest pain precipitated by progressively less exertion or even concurring at rest
What causes unstable angina?
A stable plaque with vasospasm or an unstable plaque with mural thrombus which waxes and wanes
What causes stable angina?
Fixed stenosis of a coronary vessel with >70% occlusion