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The primary factor differentiating unstable angina from stable angina (other than symptoms) is the underlying pathophysiology of the atherosclerosis. The pathophysiology of unstable angina is the reduction of coronary blood flow due to transient platelet aggregation on apparently normal endothelium , coronary artery spasms, or coronary thrombosis .
A key symptom of coronary ischemia is chest pain or pressure, known as angina pectoris. [4] Angina may present typically with classic symptoms or atypically with symptoms less often associated with heart disease. [19] Atypical presentations are more common in women, diabetics, and elderly individuals. [8] Angina may be stable or unstable.
Angina—the technical name for chest tightness—can spread to the jaw or neck. It’s typically triggered by exertion, like walking uphill, or emotional stress, says Dr. William Zoghbi, chair of ...
A common symptom is angina, which is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. [4] Occasionally it may feel like heartburn. In stable angina, symptoms occur with exercise or emotional stress, last less than a few minutes, and improve with rest. [4]
There are typically few noticeable symptoms until the situation becomes dire and you experience catastrophic complications such as a heart attack, stroke, or blood clot. ... (angina) Cold sweats ...
Many people with early coronary artery disease don’t have any symptoms. If your heart doesn’t get enough oxygen, you might develop chest pain (angina). When the blood flow to your heart is ...
Chest pain with features characteristic of cardiac origin (angina) can also be precipitated by profound anemia, brady-or tachycardia (excessively slow or rapid heart rate), low or high blood pressure, severe aortic valve stenosis (narrowing of the valve at the beginning of the aorta), pulmonary artery hypertension and a number of other ...
These symptoms are likely induced by a massive surge of catecholamines from the sympathetic nervous system, which occurs in response to pain and, where present, low blood pressure. [40] Loss of consciousness can occur in myocardial infarctions due to inadequate blood flow to the brain and cardiogenic shock , and sudden death , frequently due to ...