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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]
Shingles occurs only in people who have been previously infected with VZV; although it can occur at any age, approximately half of the cases in the United States occur in those aged 50 years or older. [37] Shingles can recur. [38] In contrast to the frequent recurrence of herpes simplex symptoms, repeated attacks of shingles are unusual. [39]
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 ...
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.
Shingles, also called zoster or herpes zoster, is a viral infection that affects the nerves.
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 .
"The most common COVID symptoms are currently sore throat and nasal congestion." Dr. Cutler says. In fact, the biggest trend isn't so much that there is one telltale sign you have COVID-19 but ...
Beta (B.1.351) The beta variant first surfaced in South Africa at the end of 2020 and spread to other countries. This variant was uncommon in the U.S. Scientists were concerned about its ability ...