Acute Coronary Syndrome
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Vasodilation = NO, prostaglandins
Vasoconstriction = endothelin
Heart only perfuses in diastole
Subendocardial tissue starts dying at 1-2 hours, transmural damage can take 2-4 hours
Subendocardial = ST depression
Transmural = ST elevation
LAD = V1, V2, V3
RCA = II, III, AVF
Q waves are 2-3 days after infarct
Troponins increase over 4 hrs and taper after 7 days
CKMB increase in 4 hrs and taper after 3 days (not used anymore)
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