PMC8415387_01
ECG Illustration 1 with torso limb leads placement showed ST elevation in leads III, mimicking acute MI.
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The initial 12-lead ECG (Figure 1A) was obtained with limb leads placed on the torso position and reported as "ST elevation and possible acute inferior wall myocardial infarction (MI)". Repeat ECG with limb leads placed in standard, distal limb positions showed resolution of "ST elevation" in the inferior leads (Figure 1B).
PMC8415387_02
ECG Illustration 1 with standard limb leads placement showed no ST elevation in lead III.
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This ECG (Figure 2A) with torso limb leads placement was obtained in a 76-year-old patient which showed the presence of a Q wave in lead aVL suggestive of an old lateral wall MI. When the limb leads were moved from torso position to standard distal limb positions, a repeat ECG (Figure 2B) showed resolution of Q waves in lead aVL.