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Angina, also known as angina pectoris, is chest pain or pressure, usually caused by insufficient blood flow to the heart muscle (myocardium). [2] It is most commonly a symptom of coronary artery disease. [2] Angina is typically the result of partial obstruction or spasm of the arteries that supply blood to the heart muscle. [3]
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]
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.
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.
Arrhythmias are the main cause of cardiac arrest but can be triggered by other cardiac events such as heart attacks. Other risk factors include coronary heart disease, heart valve disease, and ...
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 ...
Dr. Rebecca MacMillan, a vet with over 15 years of experience, says she regularly sees four skin conditions in particular: skin allergies, parasites, acute moist dermatitis, and endocrine disease.
Other common causes include gastroesophageal reflux disease (30%), muscle or skeletal pain (28%), pneumonia (2%), shingles (0.5%), pleuritis, traumatic and anxiety disorders. [ 3 ] [ 6 ] Determining the cause of chest pain is based on a person's medical history, a physical exam and other medical tests. [ 3 ]