Search results
Results from the WOW.Com Content Network
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]
Coronary vasospasm classically produces chest pain at rest, also known as variant angina (vasospastic angina or Prinzmetal's angina). [5] Chest pain is more common at certain times of the day, usually from late night to early morning. [6] These episodes can be accompanied by nausea, vomiting, cold sweating, and even syncope.
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 .
Microvascular angina is a chronic long term condition which increases the risk of heart attack and other cardiac events such as heart failure and frequent hospital admissions. The treatment consists of drugs, mainly to relieve chest pain, but a very important part of the treatment is regularly visiting the doctor and repeating the tests to make ...
The new "FLiRT" COVID-19 variants, including KP.3 and KP.2, are spreading in the United States. Will there be a summer surge? Experts discuss transmission, symptoms, and vaccines.
Amlodipine, sold under the brand name Norvasc among others, is a calcium channel blocker medication used to treat high blood pressure, coronary artery disease (CAD) [10] and variant angina (also called Prinzmetal angina or coronary artery vasospasm, among other names). [11] It is taken orally (swallowed by mouth). [10]
KP.3.1.1 — which comes from the JN.1 strain — is now the most dominant variant, accounting for an estimated 27.8% of cases. The symptoms are similar to other COVID strains.
Words such as 'variant,' 'subvariant,' and 'strain' became part of the lexicon. All viruses, including SARS-CoV-2, which causes COVID-19, acquire mutations over time as they spread.