PMC5914128_01
Initial ECG showing >1 mm upsloping ST depression with symmetric tall T in lead V2-6 characteristic of de Winter ECG pattern.
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ECG showed sinus rhythm of 57 bpm and >1 mm upsloping ST depression with symmetric tall T in lead V2-3 characteristic of de Winter T-wave ECG pattern (Figure 1).
ECG showing progression into ST-segment elevation myocardial infarction.
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ECG was done 3 hours later showing Q-waves developing in V2-4, consistent with the final stages of acute STEMI accompanied with ST-segment elevation in lead V2-4 which barely meets the 2 mm threshold for those precordial leads as per the guidelines (Figure 2). Elevated troponin at the 5th hour confirmed the presence of myocardial infarction.
ECG after fibrinolysis showing resolution of ST-segment elevation.
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fig3
Streptokinase (1.5 million units) was administered, and chest pain subsided with a resolution of ST-segment elevation (Figure 3).