case_images: PMC11786798_01
case_images: The 12-lead electrocardiogram (ECG) demonstrated a third-degree atrioventricular block "complete heart block".
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case_images: PMC11786798_01_gr1.jpg
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case_images: T level of 24 ng/mL. The 12-lead electrocardiogram (ECG) showed third-degree atrioventricular (AV) block"CHB" (Fig. 1).
case_images: The two-dimensional transthoracic echocardiography: Parasternal short axis view (A) and parasternal long axis view (B) echocardiogram demonstrated left ventricular hypertrophy.
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case_images: PMC11786798_01_gr2.jpg
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case_images: A two-dimensional transthoracic echocardiogram (2D-TTE) revealed an interventricular septal thickness (IVSS) of approximately 2 cm during systole (Fig. 2), mild mitral regurgitation, and a left ventricular ejection fraction (LVEF) of 65 % (Fig. 3).
case_images: Invasive coronary angiography images: The left coronary angiogram revealed a myocardial bridge in the mid left anterior descending artery (yellow arrows), resulting in 90%-95% stenosis during systole (B), with normal caliber during diastole (A). In addition to a temporary pacemaker (red arrow).
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case_images: The left coronary angiogram revealed a MB in the mid LAD artery, resulting in 90%-95% stenosis during systole, with normal caliber during diastole (Fig. 4).