PMC5016748_01
EKG before stent placement, showing biphasic T-waves in leads V2 and V3.
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Electrocardiogram (EKG) was performed and demonstrated sinus tachycardia with biphasic T-waves in V2 and V3 without pathologic Q-waves (Fig. 1), typical of the Wellens' sign.
Coronary angiogram revealing 99% stenosis of proximal left anterior descending artery pre-intervention.
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He was urgently taken for cardiac catheterization, which revealed 95-99% stenosis of proximal left anterior descending (LAD) artery (Fig. 2), and a drug eluting stent was successfully placed (Fig. 3), without any complications.
EKG 1 day after stent placement, showing deep T-wave inversion in leads V1-V3.
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A repeat EKG immediately after percutaneous coronary intervention (PCI) revealed the resolution of type A Wellens' sign; however, he had persistent deep T-wave inversions in leads V1-V3 (Fig. 4) representing type B Wellens' sign.