A 58-year-old man with diabetes presents to the emergency department with acute chest pain of 2 hours' duration. His ECG shows a left bundle branch block (LBBB) pattern. The electrocardiographic findings marked **A** in the diagram demonstrate concordant ST-segment elevation ≥1 mm in leads with a positive QRS complex, along with concordant ST-segment depression ≥1 mm in leads V1–V3. Based on these Sgarbossa criteria findings, what is the most appropriate next step in management?
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