The aim of this study is to make a foray in the world of constitutive elements of the architectural and functional organizing of the cardiomyocytes involved in cardiomyopathies and of the genetic molecules that they express. Primary cardiomyopathies represent a group of diseases characterized by primary structural and functional changes of the myocardium, without myocardial ischemic disease, hypertension, valvulopathies or congenital cardiac diseases being involved. In the pathogenesis of the cardiomyopathies proteins, especially from the sarcomere, Z-disc, cellular cytoskeleton, sarcolemma, intercalated discs, nuclear envelope and other constitutive proteins of the cardiomyocytes are involved. Deciphering of these pathophysiological mechanisms is part of the new model of personalized medicine, and it is useful in developing and in the optimization of new strategies for the management of the patients diagnosed with this type of disease.