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Electrocardiography must use terminology consistent with the information it provides – information on impulse generation and propagation. The same alterations of electrical properties can be present with different clinical situations. Moreover, the clinical conditions are not “pure”. We deal with co-morbidities in the clinical practice. This is a major challenge for electrocardiography in the 21st century in general, and for the diagnosis of left ventricular hypertrophy in particular.
