PMC3542951_01
12 lead EKG at EMS arrival (typical Osborn waves, also known as camel-hump sign, late delta wave, or hypothermic wave. Deflections are more commonly observed in leads II, III, AVF, V5, and V6).
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fig1
A 12 lead EKG showed typical Osborn waves: (Figure 1).
12 leads EKG after prolonged m-CPR.
CRIM.EM2012-381798.002.jpg
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fig2
A 12 lead EKG showed only minimal ischemic changes: diffuse T wave inversion (Figure 2).