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Fig. 1 —Decision pathway for patients with low-risk chest pain
presenting to emergency department and managed under standard-of-care
algorithm. CABG = coronary artery bypass graft, Cath + = coronary
catheterization reveals significant stenosis, Cath – = coronary
catheterization reveals mild or no stenosis, LM = left main artery disease,
n-v = n-vessel disease, PCI = percutaneous coronary
intervention, Trop/Stress test + = troponin elevated or stress test positive
for ischemia, Trop/Stress test – = troponin normal and stress test
negative for ischemia.
