Variant angina; Angina - variant; Prinzmetal's angina
Spasm may be "silent" -- without symptoms -- or it may result in
The main symptom is a type of chest pain called angina, which can be felt under the chest bone and is described as:
It is usually severe. The pain may spread to the neck, jaw, shoulder, or arm.
- Often occurs at rest
- May occur at the same time each day, usually between midnight and 8:00 AM
- Lasts from 5 to 30 minutes
The person may lose consciousness.
Unlike angina that is caused by hardening of the coronary arteries, chest pain and shortness of breath are often not present when you walk or exercise.
Signs and tests
Tests to diagnose coronary artery spasm may include:
Coronary angiography ECG