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ST elevation occurs as follows: - an upwardly convex and elevated
ST segment indicates acute myocardial infarction or variant (Prinzmetal's) angina
-
the affected leads indicate the area of affected myocardium
- anterior
damage shows in the V leads, and inferior in III and VF
In pericarditis
the ST segment is elevated, but it is upwardly concave and widespread. Other
causes of ST elevation include (1): - cardiac trauma
- ventricular
aneurysm or large chronic myocardial infarct (at rest, exercise induced or aggravated)
- cardiomyopathies
including hypertrophic cardiomyopathy
- left bundle branch block
Reference: - Hoffman
I, Saltzman B. Is ATP-sensitive K+ channel (K+ATP) recruitment a common mechanism
for ECG-ST segment depression and elevation? Med Hypotheses. 2003 Apr;60(4):593-7.
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