1. Optical Coherence Tomography Imaging in Acute Myocardial Infarction: Calcified Nodule as a Culprit Lesion

    Optical Coherence Tomography Imaging in Acute Myocardial Infarction: Calcified Nodule as a Culprit Lesion

    A 72-year-old male had acute inferior-wall myocardial infarction, for which he was subjected to primary angioplasty at another institute. Coronary angiography revealed a thrombotic 95% occlusion of the proximal right coronary artery (RCA) (Figure 1A). Percutaneous coronary intervention (PCI) was attempted but failed, as the coronary guidewire could not cross the lesion. There was TIMI 0 flow across the RCA at the end of the abandoned procedure (Figure 1B; Video 1). He was referred to our institute for a repeat PCI. Repeat coronary angiography revealed 95% eccentric calcified stenosis of the mid RCA with TIMI 3 flow (Figure 1C). The ...

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