PMC9720276_01
(A) A 12-lead electrocardiogram reveals low QRS voltage in limb leads and isolated ventricular premature beat. (B) Ambulatory 24-hour Holter monitoring reveals several runs of nonsustained polymorphic ventricular tachycardia.
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F1
Electrocardiography revealed low voltage in the limb leads and premature ventricular contraction (Figure 1).
Short-axis cardiac magnetic resonance imaging on days 2 (A,B) and 18 (C,D) after the patient's presentation. (A) High signal intensity in anterior wall of left ventricle on T2-weighted image. (B) Diffuse multifocal patchy late gadolinium enhancement (LGE). (C) Sustained high signal intensity in anterior wall of left ventricle on T2-weighted image. (D) Persistent multifocal patchy LGE.
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F2
Cardiac magnetic resonance (CMR) imaging 2 days after presentation revealed global left ventricular dysfunction with an ejection fraction of 41%, marked hypokinesia, high T2 values in the apical to mid portion of the anterior wall, and diffuse multifocal patchy late gadolinium enhancement (LGE) (Figure 2).