Document Detail


Managing unstable angina and non-ST elevation MI.
MedLine Citation:
PMID:  20669821     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Acute coronary syndrome (ACS), encompassing unstable angina (UA), non-ST elevation myocardial infarction (NSTEMI) and ST elevation myocardial infarction (STEMI), is often the result of an acute thrombotic occlusion of the coronary vessels, associated with atheromatous plaque rupture or erosion. ACS is associated with a severely impaired prognosis and requires prompt and efficient specialist treatment. The clinical presentation may be identical across all three components of ACS. Establishing an accurate diagnosis without delay is of paramount importance to start treatment promptly. Patients with suspected ACS need to be referred immediately to A&E. Prehospital treatment, which includes aspirin, nitrates, morphine and oxygen (if hypoxic), should be initiated rapidly. Important features pointing towards a diagnosis of ACS include: typical characteristics of chest pain, presence of risk factors, and ECG changes suggestive of myocardial ischaemia. Chest discomfort in patients with ACS typically occurs at rest, is anginal in character and can range from mild tightness to central crushing chest pain. It may be associated with nausea, dyspnoea or diaphoresis. The chest pain may radiate to the arms, back or jaw and is often >20 minutes in duration. An accurate clinical history and a detailed examination are vital. Initial investigations are the same for all ACS events, with the need for urgent serial ECGs and the measurement of cardiac troponin levels, to assess myocardial damage. In NSTEMI, ECG changes suggestive of ischaemia are often present and associated with elevated cardiac troponin. In UA, there is a considerable reduction in myocardial perfusion leading to symptoms; but there is no rise in cardiac troponin. Risk stratification is imperative in assessment of ACS to allow efficient delivery of specialist care. Treatment includes: antiplatelets; antithrombotic agents; angina drugs; analgesia, and PCI.
Authors:
Mohammed Majid Akhtar; Yassir Hassan Iqbal; Juan Carlos Kaski
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Practitioner     Volume:  254     ISSN:  0032-6518     ISO Abbreviation:  Practitioner     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-07-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404245     Medline TA:  Practitioner     Country:  England    
Other Details:
Languages:  eng     Pagination:  25-30, 2-3     Citation Subset:  IM    
Affiliation:
Southend University Hospital NHS Trust.
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