A 55-year-old man presents with worsening shortness of breath on exertion. His BP is normal but his ECG is abnormal with voltage criteria for LVH. His echo is shown in Figs 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 and 7.7, and Videos 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 7.10, 7.11, 7.12. 2D measurements reveal IVSd 1.8 cm, PW 1.8 cm, LVEDD 5.5 cm.