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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.
Antiplatelet medications are one of the primary recommendations for treatment of both stable [4] and unstable [5] ischemic heart disease.Most commonly, aspirin is used as a single medication in cases of uncomplicated stable angina, and in some cases of unstable angina.
Unstable angina (UA) (also "crescendo angina"; this is a form of acute coronary syndrome) is defined as angina pectoris that changes or worsens or begins suddenly at rest. [12] Unstable angina is a medical emergency and requires urgent medical treatment from a doctor. [5] It has at least one of these three features: [13]
However, some important aspects of treatment depend on the presence or absence of elevation of the ST segment on the electrocardiogram, which classifies cases upon presentation to either ST segment elevation myocardial infarction (STEMI) or non-ST elevation acute coronary syndrome (NST-ACS); the latter includes unstable angina and non-ST ...
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]
The accepted management of unstable angina and acute coronary syndrome is therefore empirical treatment with aspirin, a second platelet inhibitor such as clopidogrel, prasugrel or ticagrelor, and heparin (usually a low-molecular weight heparin), with intravenous nitroglycerin and opioids if the pain persists.
Rest tends to relieve stable angina, whereas unstable angina and vasospastic angina can occur anytime, including at rest. In terms of medications, all three can be treated with Nitroglycerin which is a vasodilator that increases blood vessel diameter to allow more blood flow. In addition, vasospastic angina also responds to calcium channel ...
The majority of individuals experiencing stable angina can effectively address their condition through lifestyle modifications, particularly by embracing smoking cessation and incorporating regular exercise into their routine. Alongside these lifestyle changes, the use of antianginal drugs is a common approach.
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