Is angina dangerous?

A familiar episode that follows an established pattern still deserves ongoing care. New symptoms, symptoms at rest, or a clear change from your normal pattern can represent unstable angina or a heart attack and need urgent assessment.

Angina occurs when part of the heart muscle is not receiving enough oxygen-rich blood for its current workload. It often presents as pressure, squeezing, heaviness, burning, or tightness in the chest, and discomfort may extend into an arm, shoulder, neck, jaw, back, or upper abdomen. Breathlessness, sweating, nausea, dizziness, or unusual fatigue may occur alongside it.

The symptom does not show by itself whether heart muscle has been damaged. A clinician may use your symptom pattern, examination, an electrocardiogram, and other tests to distinguish stable angina from a more urgent heart problem.

Stop what you are doing and rest in a safe place. If you already have an angina action plan or prescribed relief medicine, follow its instructions exactly. Do not take another person's medicine or change your prescribed dose on your own.

Arrange a prompt medical review if episodes are recurring, limiting activity, or changing in frequency, intensity, triggers, or recovery. Record what you were doing, where the discomfort occurred, associated symptoms, and what relieved it; those details can help guide testing and treatment.

Call local emergency services immediately for new or severe chest discomfort, symptoms that occur at rest, symptoms that persist or return, or an episode that does not settle as your prescribed action plan says. Also treat discomfort with breathlessness, cold sweating, nausea, faintness, or pain spreading to the arm, jaw, back, or shoulder as an emergency.

Do not drive yourself when a heart attack may be occurring. Emergency teams can assess you and begin care during transport.

Ask which symptoms should activate your emergency plan, how to use each medicine, whether an electrocardiogram or further testing is appropriate, and what level of activity is suitable. Confirm how blood pressure and cholesterol management fit into protecting your heart.