Ventricular fibrillation and sudden cardiac arrest in apical hypertrophic cardiomyopathy: Two case reports

Figure 1 Echocardiography images. A: Echocardiography in case 1 demonstrated apical hypertrophy (18.7 mm; white arrows) without apical aneurysm and a normal left ventricular ejection fraction (LVEF); B: Echocardiography in case 2 revealed apical hypertrophy (20.1 mm; white arrows) without apical aneurysm and a normal LVEF.

Figure 2 The initial rhythm strip and electrocardiogram in case 1. A: The initial electrocardiogram (ECG) revealed ventricular fibrillation; B: The ECG after stabilization showed sinus rhythm with deep T-wave inversion.

Figure 3 The initial rhythm strip and electrocardiogram in case 2. A: The initial electrocardiogram (ECG) revealed ventricular fibrillation; B: The ECG after stabilization was similar to that before cardiac collapse showing sinus rhythm with a tri-fascicular block and T-wave inversion.