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Variant angina differs from stable angina in that it commonly occurs in individuals who are at rest or even asleep, whereas stable angina is generally triggered by exertion or intense exercise. Variant angina is caused by vasospasm, a narrowing of the coronary arteries due to contraction of the heart's smooth muscle tissue in the vessel walls. [3]
Friedman suffered an angina attack during 1955 when he was age 45 and had the first of two heart failures 10 years later at 55. As a result of this, Friedman attempted to alter his own type A personality to reduce stress. He would observe that the frantic drive in people with this behavior is not always the sign of a successful person.
Worsening angina attacks, sudden-onset angina at rest, and angina lasting more than 15 minutes are symptoms of unstable angina (usually grouped with similar conditions as the acute coronary syndrome). As these may precede a heart attack, they require urgent medical attention and are, in general, treated similarly to heart attacks. [8]
Angina comes from the latin angere, which means to strangle, and pectoris comes from pectus, meaning chest—so angina pectoris loosely translates to “strangling of the chest”, which actually makes a lot of sense, because angina pectoris is caused by reduced blood flow which causes ischemia to the heart muscle, or lack of oxygen to the ...
Unstable angina is a type of angina pectoris [1] that is irregular or more easily provoked. [2] It is classified as a type of acute coronary syndrome. [3]It can be difficult to distinguish unstable angina from non-ST elevation (non-Q wave) myocardial infarction.
Angina: This usually does not cause dysfunction on echocardiogram and can last longer than that of heart disease. Abnormal cardiac stress test: ST segment changes in EKG are typically similar to those of coronary artery disease, and the opposite of those of Prinzmetal's angina. Myocardial perfusion imaging can be abnormal in 30% of patients.
The stress in your brain can transmit signals to your GI tract and nerves that can lead to diarrhea, says Samuel A. Akinyeye, M.D., assistant professor in the division of gastroenterology ...
Coronary steal is also the mechanism in most drug-based cardiac stress tests; When a patient is incapable of doing physical activity they are given a vasodilator that produces a "cardiac steal syndrome" as a diagnostic procedure. The test result is positive if the patient's symptoms reappear or if ECG alterations are seen.