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. 2016 Mar 2;11:7–11. doi: 10.1016/j.ijcha.2016.02.001

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© 2016 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig. 1 — Pathogenesis of Q waves in HCM patients. Based on our results, abnormal Q waves may be generated by an increased electrical force generated by hypertrophied LV wall overpowering the electrical vector by its opposite wall nearest to the exploring lead. 1: basal anterior, 2: basal anteroseptal, 3: basal inferoseptal, 4: basal inferior, 5: basal inferolateral, 6: basal anterolateral, 7:mid anterior, 8: mid anteroseptal, 9: mid inferoseptal, 10: mid inferior, 11: mid inferolateral, 12: mid anterolateral, 13: apical anterior, 14: apical septal, 15:apical inferior, 16: apical lateral, 17: apex. The shaded segments: hypertrophied segments. The arrow size is proportionate to electrical forces generated by the corresponding ventricular walls. A: increased DT ratio Inferior Septum/Lateral wall, B: Increased DT ratio Anterior/Inferior wall.