case_images: PMC10475547_01
case_images: (A) Electrocardiogram at admission. The electrocardiogram showed sinus tachycardia and multiple premature atrial complexes with aberrant conduction. The QT interval was prolonged with a corrected QT interval at 523 ms. (B) Electrocardiogram at the 3-month follow-up. The electrocardiogram showed sinus rhythm with a corrected QT interval at 491 ms.
case_images: fcvm-10-1166600-g001.jpg
case_images: PMC10475547_01_fcvm-10-1166600-g001.jpg
case_images: F1
case_images: The electrocardiogram showed a prolonged heart rate corrected QT interval (QTc) of 530 ms primarily by prolonging the ST segment and multiple premature atrial complexes with aberrant conduction (Figure 1A). Repeated electrocardiography at the 3-month follow-up showed QTc shortened to 491 ms (Figure 1B).
case_images: (A) Cardiac magnetic resonance imaging with gadolinium at diagnosis. The red arrow marks late gadolinium enhancement in the interventricular septum (bright liner enhancement). (B) Cardiac magnetic resonance imaging with gadolinium at diagnosis. The red arrow marks late gadolinium enhancement in the inferior and lateral walls of the left ventricle [or left ventricular something (bright liner enhancement)]. (C) Cardiac magnetic resonance imaging with gadolinium at 10 months. The red arrow marks late gadolinium enhancement in the interventricular septum (bright liner enhancement). (D) Cardiac magnetic resonance imaging with gadolinium at 10 months. The red arrow marks late gadolinium enhancement in the inferior and lateral walls of the left ventricle (bright liner enhancement).
case_images: fcvm-10-1166600-g002.jpg
case_images: PMC10475547_01_fcvm-10-1166600-g002.jpg
case_images: F2
case_images: After stabilization, the patient underwent CMR imaging, which showed signs of cardiac fibrosis in the septal, lateral, and inferior walls of the left ventricle after late gadolinium enhancement (LGE) (Figures 2A,B). CMR imaging was conducted at the 1-year follow-up to review fibrosis size, and it exhibited similar positive LGE in the same area, as shown in Figures 2C,D.