Cardiac Magnetic Resonance Identified the Fibrotic Lesion Associated with Syncope Attack Due to Complete Atrioventricular Block in a Patient with Hypertrophic Cardiomyopathy and Aortic Stenosis

Figures

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  Figure 1.. Standard transthoracic echocardiography. Continuous-wave Doppler measurement of peak aortic transvalvular velocity (A), aortic valve area (AVA) by planimetry (B), parasternal long-axis view (C), and M-mode recording at the mitral valve level (D).

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  Figure 2.. Cardiac MR images with late gadolinium enhancement (LGE) (A-D) and T2-weighted images (E, F). Basal (A, E) and basal-mid short-axis images (B, F), and long-axis images (C, D). The arrowheads indicate LGE at the upper border of the ventricular septum, the thin arrows indicate LGE at the right-ventricular side of the basal-mid septal wall, and the thick arrows indicate the high-signal-intensity area of T2 images.

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  Figure 3.. Continuous ECG-monitoring records when a syncope attack occurred (A, arrow). Complete AV block with a ventricular pause for 19 seconds was noted (B). Representative images stained with Hematoxylin and Eosin staining or Masson’s trichrome of myocardial tissues removed at surgery (C). ECG: electrocardiogram, AV: atrioventricular