PMC9164917_01
Electrocardiography of the patient showing inferior wall myocardial infarction
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F1
An urgent ECG was obtained which revealed an acute inferior wall myocardial infarction [Figure 1].
Echocardiography image depicting right ventricular alternans
JCE-32-54-g002.jpg
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F2
However, the tricuspid regurgitation velocity showed marked beat-to-beat variation, alternating with every alternate beat suggestive of tricuspid regurgitation alternans [Figure 2].