What Is Unstable Angina?

Unstable angina is a potentially dangerous condition. What is it, specifically? Chest pain or discomfort is the primary symptom of unstable angina. People with symptoms of an angina attack usually feel discomfort (often a pressure-like pain) in or around the chest, shoulders, jaw, neck, back, or arms. It may feel like a squeezing, pressing sensation in the chest. Unstable angina can occur without physical exertion and is not relieved by rest or medicine.

 

The symptoms are often a sign that a heart attack could occur soon. In fact, 10 to 20 percent of people with the condition have a heart attack. Unlike stable angina, unstable angina does not follow regular patterns, which can make it difficult to pinpoint. It occurs more often in older adults and requires emergency treatment.