Atypical angina differs from typical angina in the absence of all the signs of an ischemic heart attack. Symptoms of atypical angina can range from a dull, sharp pain to watery eyes or present as shortness of breath or back pain.

Hypertensive patients often have chest pain despite the absence of obstructive coronary artery disease, the main cause of which is coronary microvascular dysfunction. Abnormalities in the coronary microvascular structure that cause angina include: reduced coronary capillary flow, endothelial dysfunction,...

Angina is chest pain caused by reduced blood flow to the heart muscle or myocardial ischemia. It is a typical symptom of coronary artery disease. Angina can interfere with performing some normal activities.