PMC9244857_01
Initial electrocardiogram upon arrival.
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F1
Twelve-lead electrocardiogram (ECG) reported sinus bradycardia with a rate of 56 beats per minute, normal axis of deviation, PR interval of 128 ms (normal = 120-200 ms), QRS complex duration of 98 ms (normal = 80-100 ms), QTC interval of 370 ms (normal <= 440 ms), and diffuse ST segment elevation throughout (Figure 1).
Transthoracic echocardiogram with a parasternal long-axis view that demonstrates a preserved left ventricular ejection fraction with no pericardial effusion.
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F2
The patient underwent transthoracic echocardiography (TTE), which revealed no wall motion abnormalities, normal left ventricular diastolic function, and an estimated ejection fraction of 60% (Figure 2, Videos 123).
Transthoracic echocardiogram showing a parasternal long-axis view. https://youtu.be/_UGS9V5PvoE. Transthoracic echocardiogram showing an apical four-chamber view. https://youtu.be/K1s9sI8ckvQ. Transthoracic echocardiogram showing an apical two-chamber view. https://youtu.be/C5lkhG20SoY
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V1
Subsequent ECGs revealed improvement in diffuse ST segment elevation (Figure 3).